BACKGROUND: The purpose of this study was to determine if retrospective recall of oral contraceptive (OC) adherence provides data that are similar to data collected via daily diaries over the same time period. Factors associated with inconsistent agreement between prospective and retrospective measurements of adherence also were explored. STUDY DESIGN: A total of 185 women participated in a longitudinal, prospective cohort of OC users, and 113 of these women provided complete information on OC adherence during follow-ups. Concordance beyond chance was assessed using weighted kappa statistics, and logistic regression was used to identify factors associated with inconsistent reporting of adherence. RESULTS: There was substantial agreement between prospective and retrospective adherence information (weighted kappa=0.64; 95% CI: 0.52-0.77). Participants with a high school education or less and those who had problems with feeling sad while using OCs had increased odds of inconsistent reporting of adherence (OR=4.38, 95% CI: 1.41-13.61 and OR=3.52, 95% CI: 1.25-9.94, respectively). CONCLUSION: While prospective data collection via diaries may improve accuracy, the added expense and burden on study participants may not be necessary. However, the use of retrospective recall may not be appropriate for all study populations.
BACKGROUND: The purpose of this study was to determine if retrospective recall of oral contraceptive (OC) adherence provides data that are similar to data collected via daily diaries over the same time period. Factors associated with inconsistent agreement between prospective and retrospective measurements of adherence also were explored. STUDY DESIGN: A total of 185 women participated in a longitudinal, prospective cohort of OC users, and 113 of these women provided complete information on OC adherence during follow-ups. Concordance beyond chance was assessed using weighted kappa statistics, and logistic regression was used to identify factors associated with inconsistent reporting of adherence. RESULTS: There was substantial agreement between prospective and retrospective adherence information (weighted kappa=0.64; 95% CI: 0.52-0.77). Participants with a high school education or less and those who had problems with feeling sad while using OCs had increased odds of inconsistent reporting of adherence (OR=4.38, 95% CI: 1.41-13.61 and OR=3.52, 95% CI: 1.25-9.94, respectively). CONCLUSION: While prospective data collection via diaries may improve accuracy, the added expense and burden on study participants may not be necessary. However, the use of retrospective recall may not be appropriate for all study populations.
Authors: P D Stolley; J A Tonascia; P E Sartwell; M S Tockman; S Tonascia; A Rutledge; R Schinnar Journal: Am J Epidemiol Date: 1978-03 Impact factor: 4.897
Authors: F E van Leeuwen; C M van Duijn; M H Camps; B A Kempers; M F Mentjens; H B Mulder; E G Schouten; R M Zwijsen; M A Rookus Journal: Contraception Date: 1992-05 Impact factor: 3.375
Authors: Michael E Newcomb; Gregory Swann; Ryne Estabrook; Marya Corden; Mark Begale; Alan Ashbeck; David Mohr; Brian Mustanski Journal: Assessment Date: 2016-09-01
Authors: Jin Han; Jifang Zhou; Santosh L Saraf; Victor R Gordeuk; Gregory S Calip Journal: Pharmacoepidemiol Drug Saf Date: 2017-08-16 Impact factor: 2.890
Authors: Miguel Ángel Gómez-Sámano; Paloma Almeda-Valdes; Daniel Cuevas-Ramos; María Fernanda Navarro-Flores; Héctor Donaldo Espinosa-Salazar; Mayela Martínez-Saavedra; Jefsi Argelia León-Domínguez; Víctor Manuel Enríquez-Estrada; Ana Laura López-González; Ana Laura Sarmiento-Moreno; Lucero Alejandra Rivera-González; Óscar Alfredo Juárez-León; Bernardo Pérez-González; Yessica Ávila-Palacios; Lineth Sigala-Pedroza; Eira Huerta-Ávila; María Angelina Vargas-Álvarez; Carlos Sánchez-Jaimes; Mariana Cárdenas-Vera; Roopa Mehta; Manuel Alejandro López-Flores A La Torre; Iliana Manjarrez-Martínez; Griselda Xochitl Brito-Córdova; Julia M Zuarth-Vázquez; Arturo Vega-Beyhart; Guadalupe López-Carrasco; Richard J Johnson; Francisco Javier Gómez-Pérez Journal: Int J Nephrol Date: 2018-10-17