Schnurr P P
Department of Psychiatry, Dartmouth Medical School, Hanover, NH 03756.
Am J Psychiatry. 1988 Apr;145(4):491-4. doi: 10.1176/ajp.145.4.491.
Correlates of prospectively defined premenstrual syndrome were investigated in 50 women who visited a premenstrual syndrome clinic. To assess premenstrual symptom change relative to daily change, the author used effect size, the difference in mood ratings between the post- and premenstrual phases divided by the standard deviation of the entire cycle. Only 12 women had an effect size greater than or equal to 1.0 in two cycles. The probability of having premenstrual syndrome was positively related to working outside the home and negatively related to age. The results underscore the need to use prospective diagnostic criteria in research on premenstrual syndrome.
对50名前往经前综合征诊所就诊的女性进行了前瞻性定义的经前综合征相关因素的调查。为了评估相对于日常变化的经前症状变化，作者使用了效应量，即经后期与经前期情绪评分的差异除以整个周期的标准差。在两个周期中，只有12名女性的效应量大于或等于1.0。患经前综合征的概率与外出工作呈正相关，与年龄呈负相关。研究结果强调了在经前综合征研究中使用前瞻性诊断标准的必要性。
