TY - JOUR
T1 - Knowledge of contraceptive effectiveness
AU - Eisenberg, David L.
AU - Secura, Gina M.
AU - Madden, Tessa E.
AU - Allsworth, Jenifer E.
AU - Zhao, Qiuhong
AU - Peipert, Jeffrey F.
N1 - Funding Information:
The Contraceptive Choice Project is funded by an anonymous foundation.
PY - 2012/6
Y1 - 2012/6
N2 - OBJECTIVE: The purpose of this study was to determine women's knowledge of contraceptive effectiveness. STUDY DESIGN: We performed a cross-sectional analysis of a contraceptive knowledge questionnaire that had been completed by 4144 women who were enrolled in the Contraceptive CHOICE Project before they received comprehensive contraceptive counseling and chose their method. For each contraceptive method, women were asked "what percentage would get pregnant in a year: <1%, 1-5%, 6-10%, >10%, don't know." RESULTS: Overall, 86% of subjects knew that the annual risk of pregnancy is >10% if no contraception is used. More than 45% of women overestimate the effectiveness of depo-medroxyprogesterone acetate, pills, the patch, the ring, and condoms. After adjustment for age, education, and contraceptive history, the data showed that women who chose the intrauterine device (adjusted relative risk, 6.9; 95% confidence interval, 5.6-8.5) or implant (adjusted relative risk, 5.9; 95% confidence interval, 4.7-7.3) were significantly more likely to identify the effectiveness of their method accurately compared with women who chose either the pill, patch, or ring. CONCLUSION: This cohort demonstrated significant knowledge gaps regarding contraceptive effectiveness and over-estimated the effectiveness of pills, the patch, the ring, depo-medroxyprogesterone acetate, and condoms.
AB - OBJECTIVE: The purpose of this study was to determine women's knowledge of contraceptive effectiveness. STUDY DESIGN: We performed a cross-sectional analysis of a contraceptive knowledge questionnaire that had been completed by 4144 women who were enrolled in the Contraceptive CHOICE Project before they received comprehensive contraceptive counseling and chose their method. For each contraceptive method, women were asked "what percentage would get pregnant in a year: <1%, 1-5%, 6-10%, >10%, don't know." RESULTS: Overall, 86% of subjects knew that the annual risk of pregnancy is >10% if no contraception is used. More than 45% of women overestimate the effectiveness of depo-medroxyprogesterone acetate, pills, the patch, the ring, and condoms. After adjustment for age, education, and contraceptive history, the data showed that women who chose the intrauterine device (adjusted relative risk, 6.9; 95% confidence interval, 5.6-8.5) or implant (adjusted relative risk, 5.9; 95% confidence interval, 4.7-7.3) were significantly more likely to identify the effectiveness of their method accurately compared with women who chose either the pill, patch, or ring. CONCLUSION: This cohort demonstrated significant knowledge gaps regarding contraceptive effectiveness and over-estimated the effectiveness of pills, the patch, the ring, depo-medroxyprogesterone acetate, and condoms.
KW - contraception
KW - effectiveness
KW - failure
KW - knowledge
UR - http://www.scopus.com/inward/record.url?scp=84861576085&partnerID=8YFLogxK
U2 - 10.1016/j.ajog.2012.04.012
DO - 10.1016/j.ajog.2012.04.012
M3 - Article
C2 - 22521458
AN - SCOPUS:84861576085
SN - 0002-9378
VL - 206
SP - 479.e1-479.e9
JO - American Journal of Obstetrics and Gynecology
JF - American Journal of Obstetrics and Gynecology
IS - 6
ER -