Risky sexual behaviors and their association with overweight and obesity among adolescent students: a cross-sectional study

Abstract Objective To determine the prevalence of risky sexual behavior and its association with overweight and obesity among adolescent students. Methods This is a cross-sectional study, conducted in public schools with adolescents aged 12 to 17 years. We used the questionnaire Youth Risk Behavior Survey. The body mass index percentiles were calculated by means of table from the Center for Control and Prevention of Diseases. Possible associations were assessed using the χ2 test and binary logistic regression model. The odds ratio and 95%CI were calculated. Results We evaluated 1,169 students, and 33.9% reported having had sexual intercourse. Of those, 33% did not use a condom during their last intercourse, and 32.7% had had four or more sexual partners thus far. Regarding nutritional status, 15.3% were overweight or obese. In relation to the non-use of condoms, we observed only an association with the number of lifetime sexual partners (OR: 0.50; 95%CI: 0.28-0.88). The number of lifetime sexual partners was associated with males (OR: 9.17; 95%CI: 4.16-20.22), sexual debut age at 13 years or less (OR: 2.51; 95%CI: 1.23-5.13) and drinking alcohol or using drugs before the last intercourse (OR: 6.16; 95%CI: 2.14-17.73). Conclusion Risky sexual behavior rates were high and no association was found between risky sexual behaviors and overweight and obesity.

摘要 目的：明确青少年学生危险性行为的流行现状及其与超重、肥胖的相关性。方法：本研究为横断面研究，针对12~17岁的公立学校青少年开展调查，采用青少年危险行为问卷（Youth Risk Behavior Survey）收集数据。通过美国疾病控制与预防中心（Center for Control and Prevention of Diseases）的专用表格计算体质量指数百分位数。采用卡方检验（χ2 test）与二元logistic回归模型分析潜在关联，并计算比值比（OR）及95%置信区间（95%CI）。结果：本研究共纳入1169名学生，其中33.9%的学生报告曾有性交行为。在该群体中，33%的学生末次性交时未使用安全套，32.7%的学生终身性伴侣数达4人及以上。营养状况评估显示，15.3%的学生存在超重或肥胖情况。针对未使用安全套的行为，仅观察到其与终身性伴侣数量存在显著关联（OR=0.50；95%CI：0.28~0.88）。终身性伴侣数量与男性性别（OR=9.17；95%CI：4.16~20.22）、首次性行为年龄≤13岁（OR=2.51；95%CI：1.23~5.13）以及末次性交前饮酒或吸毒（OR=6.16；95%CI：2.14~17.73）均存在显著相关性。结论：青少年危险性行为发生率较高，但未发现危险性行为与超重、肥胖存在统计学关联。