Abstract:
:Barrier contraceptive trials and disease intervention studies often utilize coital diaries to measure sexual exposures: dates and frequency of intercourse, product use, additional or alternative contraceptive use, and menstrual bleeding. The validity of these self-reported data is a matter of debate, but if used, better diary designs are sought. We studied 3 different coital diaries, plus a phone-in regimen (none or weekly) in a 3 x 2 factorial design to compare participant ratings and promptness of recording. Our underlying presumption was that ease of and satisfaction with use, and promptness of data collection, are associated with greater accuracy. A self-completed questionnaire at the end of the study collected comparative retrospective data. Diary 1 captured information about a single day on one page and had three columns, for up to three possible acts of intercourse. Diary 2 had the same question format as the first diary, but contained 7 days per page. Diary 3 had 7 days on a page, but instead of a column for each act, participants enumerated the number of acts, the types of contraception used, and condom use details. Half of the women in each diary group phoned in their data weekly. Phone-in improved participants' satisfaction with the diary design as reflected by higher ratings of diary features. Phone-in did not improve recall of data at the end of the study for any of the diaries. There were no differences in the promptness of diary completion. Diaries 1 and 2 showed good concordance with recalled data, and participants expressed a preference for the layout of Diary 2. Women assigned to Diary 3 expressed dissatisfaction with the design and were worse at recalling data at the end of the study, probably due to the complexity of that diary design.
journal_name
Contraceptionjournal_title
Contraceptionauthors
Hays MA,Irsula B,McMullen SL,Feldblum PJdoi
10.1016/s0010-7824(01)00183-4subject
Has Abstractpub_date
2001-03-01 00:00:00pages
159-66issue
3eissn
0010-7824issn
1879-0518pii
S0010-7824(01)00183-4journal_volume
63pub_type
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