Fehring Richard J
Marquette University, College of Nursing, Institute for Natural Family Planning, Milwaukee, WI 53201-1881, USA.
Contraception. 2002 Oct;66(4):231-5. doi: 10.1016/s0010-7824(02)00355-4.
The (PD) peak day of cervical mucus is an important biologic marker for the self-determination of the optimal time of fertility in a woman's menstrual cycle. The purpose of this article is to provide evidence (literature and empiric) for the accuracy of the PD of cervical mucus as a biologic marker of peak fertility and the estimated day of ovulation. An analysis of data from four published studies that compared the self-determination of the PD of cervical mucus with the urinary luteinizing hormone (LH) surge was conducted. The four studies yielded 108 menstrual cycle charts from 53 women participants. The 108 cycles ranged in length from 22 to 75 days (mean 29.4 SD 6.0). Ninety-three of the 108 cycles had both an identified PD and LH surge. Data charts showed that 97.8% of the PD fell within +/-4 days of the estimated day of ovulation. Use of a standardized mucus cycle scoring system indicated that the peak in cervical mucus ratings was highest on the day of the LH surge. Self-determination of the PD of cervical mucus is a very accurate means of determining peak fertility and a fairly accurate means of determining the day of ovulation and the beginning of the end of the fertile time.
宫颈黏液的（PD）高峰日是女性月经周期中自我确定最佳生育时间的重要生物学标志物。本文旨在为宫颈黏液PD作为生育高峰和排卵预估日的生物学标志物的准确性提供证据（文献和实证）。对四项已发表研究的数据进行了分析，这些研究将宫颈黏液PD的自我确定与尿促黄体生成素（LH）激增进行了比较。这四项研究产生了来自53名女性参与者的108个月经周期图表。这108个周期的长度从22天到75天不等（平均29.4，标准差6.0）。108个周期中的93个既有确定的PD又有LH激增。数据图表显示，97.8%的PD落在排卵预估日的±4天内。使用标准化的黏液周期评分系统表明，宫颈黏液评分的峰值在LH激增日最高。自我确定宫颈黏液的PD是确定生育高峰的非常准确的方法，也是确定排卵日和生育期结束开始日的相当准确的方法。
