2018-07-242018-07-03ANJOS, C. F. Fatores associados ao comportamento sexual de risco em adolescentes e adultas jovens. 2018. 88 f. Dissertação (Mestrado em Ciências da Saúde) - Universidade Federal de Goiás, Goiânia, 2018.http://repositorio.bc.ufg.br/tede/handle/tede/8732Adolescents and young people engage in risky sexual behavior, resulting in increased number of sexually transmitted infections, and maintaining high rates of pregnancy. PURPOSE. To evaluate the differences in sociodemographic and behavioral characteristics among sexually active and virgin participants; to estimate the prevalence and to identify factors associated with sexual iniciation up to age 15, and inconsistent condom use, and identify the reasons for not using condom among adolescents and young adults. METHODS. A community-based, cross-sectional study involving 1072 adolescents and young women, aged 15 to 24 years, living in three medium-sized cities in the state of Goiás, between 2007 and 2009. All of them answered a questionnaire containing sociodemographic and behavioral data. In order to evaluate the factors associated with sexual iniciation up to age 15, and inconsistent condom use, a logistic regression analysis was performed, with odds ratio (OR) and adjusted OR, with 95% confidence interval and level of statistical significance of 5% (p <0.05). All of them signed the free and informed consent form. For minors under 18 years old the exemption of the parents' signature was obtained by court order. The project was approved by the Ethics and Research Committee. RESULTS. Of 1072, 64.9% were sexually active. Sexually active women were 6.3 (95% CI: 3.98-9.96) times more probability of being older than 19 years old, and 2.04 (95% CI: 1.19-3.49) times more probability of having schooling less than eight years. The prevalence of sexual iniciation up to age 15 was 46.4% (95% CI: 42.7-50.1) and inconsistent condom use was 73.2% (95% CI: 63.9% 82.6). The factors associated with sexual iniciation up to age 15 were age less than 19 years old, had no religion and had schooling less than eight years, with a OR of 3.13 (2.22-4.40), 2.05 (1.17-3.58) and 6.21 (4.14- 9.32) respectively. The only factor associated with inconsistent condom use was marital status or stable union, with OR 4.63 (2.86-7.50). The most frequently cited reasons for non-use of condom were "partner trust" by 49.8% and "partner dislikes" by 43.7%. CONCLUSION. The prevalence of sexual initiation up to age 15, and inconsistent condom use were high. The factors associated with these behaviors were different. Age less than 19 years old were associated with sexualiniciation up to 15, indicating a likely reduction in the age of sexual iniciation in adolescence. The most frequent reasons for not using condoms were related to the sexual partner, which indicates that gender factors need to be addressed in sex education strategies.application/pdfAcesso AbertoComportamento sexualAdolescentes e mulheres jovensCondomSexual behaviorAdolescents and young womenCondomCIENCIAS DA SAUDE::MEDICINADissertação