怀孕长度测量错误:比较最后的月经周期和超声波与基于排卵的估计
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Ginna L Doss1,2, Julie L Daniels2, Sunni L Mumford3
1From the Epidemiology Branch, Department of Health and Human Services (DHHS), National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Durham, NC.
Epidemiology (Cambridge, Mass.)
|September 22, 2025
概括
排卵提供了比最后一次月经 (LMP) 或超声波更准确的怀孕日期. 这项研究强调了与排卵相比,使用LMP或超声波检测早产的潜在错误分类.
科学领域:
- 生殖科学 生殖科学
- 产科 产科 产科 产科 产科
- 周围生理学 周围生理学
背景情况:
- 最后的月经周期 (LMP) 和超声波是估计妊娠年龄的标准方法.
- 排卵发生在受精前不久,为怀孕时间提供了一个潜在的更精确的标记.
研究的目的:
- 用LMP,超声波和排卵来比较怀孕约会和早产检测的准确性.
- 评估LMP和超声波对排卵的敏感性和特异性作为黄金标准.
主要方法:
- 分析了阿司匹林对妊娠和生殖 (EAGeR) 试验的影响 (n=392) 的数据.
- 包括具有前性记录LMP的参与者,来自生育监测器的排卵数据,以及早期冠状长度测量.
- 使用LMP,超声波和排卵来估计怀孕时间,早产患病率和妊娠年龄的大小.
主要成果:
- 按LMP日期的怀孕时间最长,而根据超声波日期的怀孕时间最短.
- 根据约会方法,早产患病率有所不同:7% (LMP),10% (超声波) 和8% (排卵).
- 超声波 (94%) 在检测早产与排卵相比的超声波 (94%) 显示出比LMP (76%) 更高的灵敏度,特异性为97% (超声波) 和100% (LMP).
结论:
- 排卵可以作为更准确的参考,用于怀孕日期和早产评估.
- 使用LMP和超声波观察到的错误分类表明流行病学研究中的潜在偏差.
- 这些发现强调了准确的妊娠年龄确定对临床和研究结果的重要性.
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