Cole L P, Fortney J A, Kennedy K I
Stud Fam Plann. 1984 Sep-Oct;15(5):242-50.
Previous studies of the changes in menstrual pattern characteristics following sterilization have been flawed by methodologic errors. As a result, contradictory findings have been reported. Appropriate methodologic approaches to the study of poststerilization menstrual patterns are presented, and a new methodologic approach-an index of menstrual pattern change-is offered, which evaluates four menstrual parameters simultaneously. A carefully controlled study using this index indicates that most women report no change in menstrual pattern at 12 months poststerilization, and among those who do experience change, changes in one direction are balanced by changes in the other direction. The changes reported include improvements as well as changes for the worse. The best predictor of whether a woman would experience menstrual pattern change after sterilization is whether her pattern had any abnormal characteristics during the three months prior to the procedure. Surgical variables and special subgroups of women are also evaluated.
以往关于绝育后月经模式特征变化的研究存在方法学错误。因此，出现了相互矛盾的研究结果。本文提出了研究绝育后月经模式的适当方法学途径，并提供了一种新的方法学途径——月经模式变化指数，该指数可同时评估四个月经参数。使用该指数进行的一项精心控制的研究表明，大多数女性在绝育后12个月报告月经模式无变化，而在那些确实经历变化的女性中，一个方向的变化与另一个方向的变化相互平衡。报告的变化包括改善以及变差。女性绝育后是否会经历月经模式变化的最佳预测因素是其在手术前三个月的月经模式是否有任何异常特征。还评估了手术变量和女性的特殊亚组。
