Sanchez Diana M, Schoenbach Victor J, Harvey S Marie, Warren Jocelyn T, Poole Charles, Leone Peter A, Adimora Adaora A, Agnew Christopher R
From the *Department of Epidemiology, UNC Gillings School of Global Public Health, Chapel Hill, NC; †College of Public Health and Human Sciences, Oregon State University, Corvallis, OR; ‡University of North Carolina School of Medicine, Chapel Hill, NC; and §Department of Psychological Sciences, Purdue University, West Lafayette, IN.
Sex Transm Dis. 2016 May;43(5):324-31. doi: 10.1097/OLQ.0000000000000428.
Sexual partnership dates are critical to sexually transmitted infection/HIV research and control programs, although validity is limited by inaccurate recall and reporting.
We examined data from 302 heterosexual adults (151 index-partner dyads) to assess reliability of reporting. Dates of first sex and last sex were collected through individual interviews and joint dyad questionnaires, which were completed together with their partners. We compared index- and partner-reported dates to estimate interpartner agreement. We used log-linear regression to model associations between interpartner differences and partnership characteristics. To assess validity, we compared individually reported dates with those from joint dyad questionnaires.
Most partnerships (66.2%) were 2 years or less in duration, and many (36.2%) were nonmonogamous. Interpartner agreement to within 1, 30, and 365 days was, respectively, 5.6%, 43.1%, and 81.3% for first sex, and 32.9%, 94.5%, and 100.0% for last sex. In adjusted models, longer relationship duration was associated with disagreement on first sex dates; partnership nonmonogamy was associated with disagreement on dates of first sex and last sex. Within dyads, several participant characteristics were associated with reporting dates closer to joint dyad responses (e.g., for first sex date, female sex [54.7%], having fewer sex partners [58.5%], and greater relationship commitment [57.3%]). However, percent agreement to within 30, 60, and 90 days was similar for all groups for both first and last sex dates.
Agreement was high on date of last sex but only moderate on date of first sex. Methods to increase accuracy of reporting of dates of sex may improve STI research.
性伴侣关系日期对于性传播感染/艾滋病研究及防控项目至关重要，尽管其有效性因回忆和报告不准确而受限。
我们研究了302名异性恋成年人（151对索引-伴侣二元组）的数据，以评估报告的可靠性。首次性行为和末次性行为的日期通过个人访谈及与伴侣共同完成的二元组问卷收集。我们比较了索引方和伴侣报告的日期，以估计伴侣间的一致性。我们使用对数线性回归来模拟伴侣间差异与伴侣关系特征之间的关联。为评估有效性，我们将个人报告的日期与二元组问卷中的日期进行了比较。
大多数伴侣关系（66.2%）持续时间为2年或更短，许多（36.2%）是非一夫一妻制的。首次性行为时，伴侣间在1天、30天和365天内的一致性分别为5.6%、43.1%和81.3%；末次性行为时分别为32.9%、94.5%和100.0%。在调整模型中，关系持续时间较长与首次性行为日期不一致相关；伴侣关系的非一夫一妻制与首次性行为和末次性行为日期不一致相关。在二元组中，一些参与者特征与报告日期更接近二元组共同回答相关（例如，对于首次性行为日期，女性[54.7%]、性伴侣较少[58.5%]以及关系承诺度较高[57.3%]）。然而，对于首次和末次性行为日期，所有组在30天、60天和90天内的一致百分比相似。
末次性行为日期的一致性较高，但首次性行为日期的一致性仅为中等水平。提高性行为日期报告准确性的方法可能会改善性传播感染研究。
