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Use of emergency contraceptive pill by 15-year-old girls: results from the international Health Behaviour in School-aged Children (HBSC) study.

Abstract : OBJECTIVE: To describe emergency contraceptive pill (ECP) use and variation across countries/regions; and to explore personal and contextual factors associated with ECP use and differences across countries/regions. DESIGN: Data were obtained from 11 countries/regions in the 2006 Health Behaviour in School-aged Children cross-sectional study. SETTING Data were collected by self-report questionnaire in school classrooms. POPULATION: The analysis is based on 2118 sexually active 15-year-old girls. METHODS: Contraceptive behaviours were compared across countries/regions by chi-square tests. Individual factors related to ECP use were investigated with separate logistic regression models. Multilevel random-intercept models allowed the investigation of individual and contextual effects, by partitioning the variance into student, school and country/region levels. MAIN OUTCOME MEASURES: ECP use at last sexual intercourse. RESULTS: ECP use rate varied significantly across countries/regions. Poor communication with at least one adult (odds ratio [OR] 1.62 [1.12-2.36], P = 0.011) and daily smoking (OR 1.46 [1.00-2.11], P = 0.048) were independently associated with ECP use in comparison with condom and/or birth-control pill use. Sexual initiation at 14 years or later (OR 2.02 [1.04-3.93], P = 0.039), good perceived academic achievement (OR 1.69 [1.04-2.75], P = 0.035) and daily smoking (OR 1.63 [1.01-2.64], P = 0.045) were associated with higher levels of ECP use in comparison with unprotected girls. The country-level variance remained significant in both comparisons. CONCLUSIONS: These data document the large heterogeneity in rates of ECP use between countries/regions. These differences could not be explained by individual or contextual factors, and raise further questions in relation to ECP access for adolescents and their education in its appropriate use.
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Submitted on : Tuesday, July 27, 2010 - 1:16:01 PM
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Adrien Gaudineau, Virginie Ehlinger, Saoirse Nic Gabhainn, Christophe Vayssiere, Catherine Arnaud, et al.. Use of emergency contraceptive pill by 15-year-old girls: results from the international Health Behaviour in School-aged Children (HBSC) study.. BJOG An International Journal of Obstetrics and Gynaecology, 2010, 117 (10), pp.1197-204. ⟨10.1111/j.1471-0528.2010.02637.x⟩. ⟨inserm-00506135⟩



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