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卫生统计学 - 版本历史
2026-04-10T00:13:08Z
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2026年2月6日 (五) 10:50 77921020
2026-02-06T10:50:21Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">←上一版本</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">2026年2月6日 (五) 10:50的版本</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l4" >第4行：</td>
<td colspan="2" class="diff-lineno">第4行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="font-size: 1.1em; margin: 10px 0; color: #334155; text-align: justify;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="font-size: 1.1em; margin: 10px 0; color: #334155; text-align: justify;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <strong>卫生统计学</strong>（Health Statistics / Medical Statistics），又称医学统计学，是一门运用<strong>[[概率论]]</strong>和<strong>[[数理统计]]</strong>的原理，来研究医学和卫生领域中数据的收集、整理和分析的学科。</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <strong>卫生统计学</strong>（Health Statistics / Medical Statistics），又称医学统计学，是一门运用<strong>[[概率论]]</strong>和<strong>[[数理统计]]</strong>的原理，来研究医学和卫生领域中数据的收集、整理和分析的学科。</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <br>它是<strong>[[循证医学]]</strong> (EBM) 的核心工具。因为生物体存在普遍的<strong>个体差异</strong>（Variability），我们无法仅凭一个个案就得出普遍规律。卫生统计学的作用就是从杂乱的变异中寻找客观规律，通过<strong>[[假设检验]]</strong>（如 <del class="diffchange diffchange-inline">$</del>P<del class="diffchange diffchange-inline">$ </del>值）来区分“偶然误差”与“本质差异”。它是评价新药疗效、追踪流行病趋势以及制定卫生政策的根本依据。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <br>它是<strong>[[循证医学]]</strong> (EBM) 的核心工具。因为生物体存在普遍的<strong>个体差异</strong>（Variability），我们无法仅凭一个个案就得出普遍规律。卫生统计学的作用就是从杂乱的变异中寻找客观规律，通过<strong>[[假设检验]]</strong>（如 <ins class="diffchange diffchange-inline"><em></ins>P<ins class="diffchange diffchange-inline"></em> </ins>值）来区分“偶然误差”与“本质差异”。它是评价新药疗效、追踪流行病趋势以及制定卫生政策的根本依据。</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l40" >第40行：</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">关键指标</th></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">关键指标</th></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #16a34a;"><del class="diffchange diffchange-inline">$</del>P<del class="diffchange diffchange-inline">$ </del>值, [[置信区间]]</td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #16a34a;"><ins class="diffchange diffchange-inline"><em></ins>P<ins class="diffchange diffchange-inline"></em> </ins>值, [[置信区间]]</td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
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<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l78" >第78行：</td>
<td colspan="2" class="diff-lineno">第78行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">神坛上的 <del class="diffchange diffchange-inline">$</del>P<del class="diffchange diffchange-inline">$ </del>值：统计学意义 vs 临床意义</h2></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">神坛上的 P 值：统计学意义 vs 临床意义</h2></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin: 15px 0; text-align: justify;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin: 15px 0; text-align: justify;"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <del class="diffchange diffchange-inline">$</del>P < 0.05<del class="diffchange diffchange-inline">$ </del>是医学论文发表的“金标准”，但它常被误读。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <ins class="diffchange diffchange-inline"><em></ins>P<ins class="diffchange diffchange-inline"></em> </ins>< 0.05 是医学论文发表的“金标准”，但它常被误读。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <div style="overflow-x: auto; margin: 20px auto;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <div style="overflow-x: auto; margin: 20px auto;"></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l91" >第91行：</td>
<td colspan="2" class="diff-lineno">第91行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">判断标准</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">判断标准</td></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;"><strong><del class="diffchange diffchange-inline">$</del>P < 0.05<del class="diffchange diffchange-inline">$</del></strong></td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>P < 0.05</strong></td></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;"><del class="diffchange diffchange-inline">疗效差值的大小、副作用、成本。</del></td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;"><ins class="diffchange diffchange-inline">看效果的大小、副作用、成本。</ins></td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">含义</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">含义</td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">“这种差异不太可能是偶然造成的。”</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">“这种差异不太可能是偶然造成的。”</td></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;"><del class="diffchange diffchange-inline">“这种差异对患者的生命有实际价值。”</del></td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;"><ins class="diffchange diffchange-inline">“这种差异对患者的生命真的有价值。”</ins></td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <tr></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">样本量影响</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">样本量影响</td></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">样本量极大时，极微小的差异也会有 <del class="diffchange diffchange-inline">$</del>P < 0.<del class="diffchange diffchange-inline">05$。</del></td></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">样本量极大时，极微小的差异也会有 P < 0.<ins class="diffchange diffchange-inline">05。</ins></td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">与样本量无关，只关乎效果本身。</td></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <td style="padding: 10px; border: 1px solid #cbd5e1;">与样本量无关，只关乎效果本身。</td></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </tr></div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l107" >第107行：</td>
<td colspan="2" class="diff-lineno">第107行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="font-size: 0.9em; color: #64748b; margin-top: 10px; border-left: 3px solid #cbd5e1; padding-left: 10px;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="font-size: 0.9em; color: #64748b; margin-top: 10px; border-left: 3px solid #cbd5e1; padding-left: 10px;"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <em>警示：一个新药如果能让血压下降 0.1 mmHg 且 <del class="diffchange diffchange-inline">$</del>P < 0.<del class="diffchange diffchange-inline">01$，它具有统计学意义，但毫无临床意义。</del></em></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <em>警示：一个新药如果能让血压下降 0.1 mmHg 且 P < 0.<ins class="diffchange diffchange-inline">01，它具有统计学意义，但毫无临床意义。</ins></em></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l114" >第114行：</td>
<td colspan="2" class="diff-lineno">第114行：</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"></div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <strong>1. [[Confidence Interval]] (置信区间)：</strong> 比 <del class="diffchange diffchange-inline">$</del>P<del class="diffchange diffchange-inline">$ </del>值更重要的指标。通常是 95% CI。它不仅告诉我们“有没有差异”，还告诉我们“差异大概是多少”（范围），提供了精确度的信息。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <strong>1. [[Confidence Interval]] (置信区间)：</strong> 比 <ins class="diffchange diffchange-inline"><em></ins>P<ins class="diffchange diffchange-inline"></em> </ins>值更重要的指标。通常是 95% CI。它不仅告诉我们“有没有差异”，还告诉我们“差异大概是多少”（范围），提供了精确度的信息。</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <p style="margin: 12px 0; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px;"></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <strong>2. Type I & II Error (I型和II型错误)：</strong> </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> <strong>2. Type I & II Error (I型和II型错误)：</strong> </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <br>• <strong>I型错误 (<del class="diffchange diffchange-inline">$\alpha$</del>)：</strong> 假阳性（冤枉好人）。本来无效，统计说有效。</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <br>• <strong>I型错误 (<ins class="diffchange diffchange-inline">α</ins>)：</strong> 假阳性（冤枉好人）。本来无效，统计说有效。</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <br>• <strong>II型错误 (<del class="diffchange diffchange-inline">$\beta$</del>)：</strong> 假阴性（放纵坏人）。本来有效，统计没发现。**[[效能]] (Power)** 就是 <del class="diffchange diffchange-inline">$</del>1-<del class="diffchange diffchange-inline">\beta$，科研设计时必须保证足够的样本量以提高效能。</del></div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> <br>• <strong>II型错误 (<ins class="diffchange diffchange-inline">β</ins>)：</strong> 假阴性（放纵坏人）。本来有效，统计没发现。**[[效能]] (Power)** 就是 1 - <ins class="diffchange diffchange-inline">β，科研设计时必须保证足够的样本量以提高效能。</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> </p></div></td></tr>
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77921020
https://www.yiliao.com/index.php?title=%E5%8D%AB%E7%94%9F%E7%BB%9F%E8%AE%A1%E5%AD%A6&diff=316518&oldid=prev
77921020：建立内容为“<div style="padding: 0 4%; line-height: 1.8; color: #1e293b; font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', Arial, sans-serif; background-color: #ffffff…”的新页面
2026-02-06T10:46:51Z
<p>建立内容为“<div style="padding: 0 4%; line-height: 1.8; color: #1e293b; font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', Arial, sans-serif; background-color: #ffffff…”的新页面</p>
<p><b>新页面</b></p><div><div style="padding: 0 4%; line-height: 1.8; color: #1e293b; font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', Arial, sans-serif; background-color: #ffffff; max-width: 1200px; margin: auto;"><br />
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<p style="font-size: 1.1em; margin: 10px 0; color: #334155; text-align: justify;"><br />
<strong>卫生统计学</strong>（Health Statistics / Medical Statistics），又称医学统计学，是一门运用<strong>[[概率论]]</strong>和<strong>[[数理统计]]</strong>的原理，来研究医学和卫生领域中数据的收集、整理和分析的学科。<br />
<br>它是<strong>[[循证医学]]</strong> (EBM) 的核心工具。因为生物体存在普遍的<strong>个体差异</strong>（Variability），我们无法仅凭一个个案就得出普遍规律。卫生统计学的作用就是从杂乱的变异中寻找客观规律，通过<strong>[[假设检验]]</strong>（如 $P$ 值）来区分“偶然误差”与“本质差异”。它是评价新药疗效、追踪流行病趋势以及制定卫生政策的根本依据。<br />
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<div class="medical-infobox mw-collapsible mw-collapsed" style="width: 100%; max-width: 320px; margin: 0 auto 35px auto; border: 1.2px solid #bae6fd; border-radius: 12px; background-color: #ffffff; box-shadow: 0 8px 20px rgba(0,0,0,0.05); overflow: hidden;"><br />
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<div style="padding: 15px; color: #1e40af; background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%); text-align: center; cursor: pointer;"><br />
<div style="font-size: 1.2em; font-weight: bold; letter-spacing: 1.2px;">Statistics</div><br />
<div style="font-size: 0.7em; opacity: 0.85; margin-top: 4px; white-space: nowrap;">The Grammar of Science (点击展开)</div><br />
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<div style="width: 100px; height: 100px; background-color: #e2e8f0; border-radius: 50%; margin: 0 auto; display: flex; align-items: center; justify-content: center; color: #94a3b8; font-size: 0.8em;"><br />
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[Image of Normal Distribution Bell Curve]<br />
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<div style="font-size: 0.8em; color: #64748b; margin-top: 12px; font-weight: 600;">变异中的规律</div><br />
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<th colspan="2" style="padding: 8px 12px; background-color: #e0f2fe; color: #1e40af; text-align: left; font-size: 0.9em; border-top: 1px solid #bae6fd;">学科档案</th><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0; width: 40%;">学科属性</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">方法学 / 工具学科</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">核心逻辑</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">归纳推理 (样本推总体)</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">关键指标</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #16a34a;">$P$ 值, [[置信区间]]</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">常用软件</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">SPSS, SAS, R</td><br />
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<th colspan="2" style="padding: 8px 12px; background-color: #e0f2fe; color: #1e40af; text-align: left; font-size: 0.9em; border-top: 1px solid #bae6fd;">主要内容</th><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">统计描述</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #1e40af;">均数, 标准差, 率</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569; border-bottom: 1px solid #e2e8f0;">统计推断</th><br />
<td style="padding: 6px 12px; border-bottom: 1px solid #e2e8f0; color: #0f172a;">t检验, 卡方, 回归</td><br />
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<th style="text-align: left; padding: 6px 12px; background-color: #f8fafc; color: #475569;">科研设计</th><br />
<td style="padding: 6px 12px; color: #0f172a;">[[RCT]], 队列研究</td><br />
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统计学不只是事后的数据处理，更重要的是事前的<strong>[[科研设计]]</strong>。设计如有缺陷，再高级的算法也无法挽救（Garbage In, Garbage Out）。<br />
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<li style="margin-bottom: 12px;"><strong>随机化 (Randomization)：</strong> 统计学的灵魂。通过随机分配（如抛硬币）将患者分入治疗组和对照组，确保两组在基线上的均衡，消除<strong>[[混杂偏倚]]</strong>。</li><br />
<li style="margin-bottom: 12px;"><strong>对照 (Control)：</strong> “没有比较就没有鉴别”。设立安慰剂对照或标准治疗对照，以排除疾病自愈或心理作用（霍桑效应）的影响。</li><br />
<li style="margin-bottom: 0;"><strong>盲法 (Blinding)：</strong> 防止主观偏见。单盲（患者不知）、双盲（医患均不知）、三盲（统计师也不知）。</li><br />
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<h2 style="background: #f1f5f9; color: #0f172a; padding: 10px 18px; border-radius: 0 6px 6px 0; font-size: 1.25em; margin-top: 40px; border-left: 6px solid #0f172a; font-weight: bold;">神坛上的 $P$ 值：统计学意义 vs 临床意义</h2><br />
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$P < 0.05$ 是医学论文发表的“金标准”，但它常被误读。<br />
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<th style="padding: 12px; border: 1px solid #cbd5e1; color: #0f172a; width: 20%;">概念</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #1e40af; width: 40%;">统计学意义 (Statistical Significance)</th><br />
<th style="padding: 12px; border: 1px solid #cbd5e1; color: #475569; width: 40%;">临床意义 (Clinical Importance)</th><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">判断标准</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;"><strong>$P < 0.05$</strong></td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">疗效差值的大小、副作用、成本。</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">含义</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">“这种差异不太可能是偶然造成的。”</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">“这种差异对患者的生命有实际价值。”</td><br />
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<td style="padding: 10px; border: 1px solid #cbd5e1; font-weight: 600;">样本量影响</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">样本量极大时，极微小的差异也会有 $P < 0.05$。</td><br />
<td style="padding: 10px; border: 1px solid #cbd5e1;">与样本量无关，只关乎效果本身。</td><br />
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<em>警示：一个新药如果能让血压下降 0.1 mmHg 且 $P < 0.01$，它具有统计学意义，但毫无临床意义。</em><br />
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<span style="color: #0f172a; font-weight: bold; font-size: 1.05em; display: inline-block; margin-bottom: 15px;">关键相关概念 [Key Concepts]</span><br />
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<strong>1. [[Confidence Interval]] (置信区间)：</strong> 比 $P$ 值更重要的指标。通常是 95% CI。它不仅告诉我们“有没有差异”，还告诉我们“差异大概是多少”（范围），提供了精确度的信息。<br />
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<strong>2. Type I & II Error (I型和II型错误)：</strong> <br />
<br>• <strong>I型错误 ($\alpha$)：</strong> 假阳性（冤枉好人）。本来无效，统计说有效。<br />
<br>• <strong>II型错误 ($\beta$)：</strong> 假阴性（放纵坏人）。本来有效，统计没发现。**[[效能]] (Power)** 就是 $1-\beta$，科研设计时必须保证足够的样本量以提高效能。<br />
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<strong>3. [[Meta-analysis]] (Meta分析)：</strong> 统计学的集大成者。通过数学方法合并多个同类研究的结果，增加样本量，是循证医学证据金字塔的塔尖。<br />
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<span style="color: #0f172a; font-weight: bold; font-size: 1.05em; display: inline-block; margin-bottom: 15px;">学术参考文献 [Academic Review]</span><br />
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[1] <strong>孙振球, 徐勇勇. (2014).</strong> <em>医学统计学 (第4版).</em> <strong>[[人民卫生出版社]]</strong>. <br><br />
<span style="color: #475569;">[点评]：中国医学统计学的“红宝书”。研究生入学考试和科研工作的案头必备，严谨地阐述了统计学原理与SAS/SPSS操作。</span><br />
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[2] <strong>Altman DG. (1990).</strong> <em>Practical Statistics for Medical Research.</em> <strong>[[CRC Press]]</strong>. <br><br />
<span style="color: #475569;">[点评]：国际经典教材。作者是 BMJ 的统计学顾问，该书以“为了让医生读懂”而著称，极少堆砌公式，重在逻辑。</span><br />
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[3] <strong>Schulz KF, et al. (2010).</strong> <em>CONSORT 2010 Statement: updated guidelines for reporting parallel group randomised trials.</em> <strong>[[BMJ]]</strong>. <br><br />
<span style="color: #475569;">[点评]：临床试验报告的国际标准。规定了发论文时必须汇报的统计学细节（如随机化方法、样本量计算依据）。</span><br />
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医学科研方法 · 知识图谱<br />
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<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">上级学科</td><br />
<td style="padding: 10px 15px; color: #334155;">[[公共卫生]] • 应用数学</td><br />
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<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">常用方法</td><br />
<td style="padding: 10px 15px; color: #334155;">[[t检验]] • [[卡方检验]] • [[Logistic回归]] • [[生存分析]]</td><br />
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<td style="width: 85px; background-color: #f8fafc; color: #334155; font-weight: 600; padding: 10px 12px; text-align: right; vertical-align: middle;">应用场景</td><br />
<td style="padding: 10px 15px; color: #334155;">[[临床试验]] (RCT) • [[流行病学]] • 诊断试验评价</td><br />
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