Woods N F, Mitchell E S, Lentz M
Family and Child Nursing, University of Washington, School of Nursing, Seattle, USA.
J Womens Health Gend Based Med. 1999 Oct;8(8):1053-62. doi: 10.1089/jwh.1.1999.8.1053.
The purposes of this study were to (1) identify the clusters of symptoms women experience during the premenstruum, (2) assess the reliability of the symptom clusters as reported by a population-based sample and a sample of women with three perimenstrual symptom patterns, (3) compare the levels of severity for the symptom clusters across menstrual cycle phases and by symptom patterns (e.g., premenstrual syndrome [PMS] vs. low severity), and (4) estimate the stability of the symptom cluster rankings across three menstrual cycle phases. Data from a cross-sectional population-based sample and a comparative sample of women screened for low-severity (LS), PMS, and premenstrual magnification (PMM) symptom patterns were analyzed using factor analysis, correlation coefficients, multivariate analysis of variance, and reliability and stability coefficients. Four symptom clusters accounted for >40% of the variance: turmoil, fluid retention, somatic symptoms, and arousal symptoms. Alpha (alpha) levels were >.70 for turmoil and fluid retention. None of the symptom clusters had correlations with other factors that exceeded a levels for sample 2. Symptom cluster scores varied by cycle phase and group (LS, PMS, PMM). Arousal and somatic symptoms were the most stable of the symptom clusters across cycle phases, and fluid retention and turmoil symptoms were less stable.
（1）确定女性在经前期经历的症状群；（2）评估基于人群的样本以及具有三种经前症状模式的女性样本所报告的症状群的可靠性；（3）比较各月经周期阶段以及不同症状模式（例如，经前综合征[PMS]与低严重程度）下症状群的严重程度水平；（4）估计三个月经周期阶段症状群排名的稳定性。使用因子分析、相关系数、多变量方差分析以及可靠性和稳定性系数，对来自基于人群的横断面样本以及针对低严重程度（LS）、经前综合征（PMS）和经前放大（PMM）症状模式进行筛查的女性比较样本的数据进行了分析。四个症状群解释了超过40%的方差：情绪紊乱、液体潴留、躯体症状和觉醒症状。情绪紊乱和液体潴留的α水平大于0.70。对于样本2，没有任何症状群与其他因素的相关性超过α水平。症状群得分因周期阶段和组别（LS、PMS、PMM）而异。在各周期阶段中，觉醒症状和躯体症状是最稳定的症状群，而液体潴留和情绪紊乱症状则不太稳定。
