VID Specialized University, Oslo, Norway.
Norwegian National Advisory Unit on Concurrent Substance Abuse and Mental Health Disorders, Innlandet Hospital Trust, Elverum-Hamar, Norway.
BMC Public Health. 2024 Jun 6;24(1):1521. doi: 10.1186/s12889-024-19009-4.
Most Norwegian adolescents experience their first sexual intercourse during late adolescence. Use of contraception is important to avoid unwanted pregnancy, while condoms can also protect against sexually transmitted diseases. There are few studies on the use of contraception at first sexual intercourse, most with varying results, and some studies have only examined the use of contraception among girls. In our study, we aimed to determine the use of contraception at first sexual intercourse, and to investigate associations between use of contraceptives at first sexual intercourse, sociodemographic factors, and alcohol and other substance use.
The study was based on data from the national electronic youth survey Ungdata, conducted in 2020-2022 among 113 049 upper secondary pupils (15-19 years) in Norway, which was around 65% of pupils attending upper secondary school during the study period. Descriptive analysis was used to estimate the prevalence of contraceptive use at first sexual intercourse, and multivariate logistic regression analyses to investigate the association between contraceptive use, sociodemographic factors, and alcohol intoxication and substance use.
32% of Norwegian adolescents did not use contraception at first sexual intercourse. More girls (57.4%) than boys (42.6%) reported use of contraception. Factors associated with non-use of contraception during first sexual intercourse among boys were having parents with no college /university education (OR = 1.22: CI 1.13-1.32), perceived poor family finances (OR = 1.22: CI 1.06-1.40), alcohol intoxication, and use of cannabis or other narcotic substances during the past 12 months. The same factors were associated with non-use of contraception among girls. Additionally, being older than 16 years (OR = 1.13: CI 1.06-1.19) was also associated with non-use of contraception at first sexual intercourse.
Many adolescents did not use contraception at first sexual intercourse. Alcohol intoxication and use of cannabis or other narcotic substances were associated with a lower likelihood of using contraceptives. This highlights the importance of preventive efforts including earlier prevention education that focuses more on the consequences of not using contraception in order to prevent unwanted pregnancies and sexually transmitted infections.
大多数挪威青少年在青春期晚期经历第一次性行为。使用避孕措施对于避免意外怀孕很重要，而避孕套也可以预防性传播疾病。关于第一次性行为时使用避孕措施的研究很少，大多数研究结果各不相同，有些研究只检查了女孩使用避孕措施的情况。在我们的研究中，我们旨在确定第一次性行为时使用避孕措施的情况，并调查第一次性行为时使用避孕措施与社会人口因素以及酒精和其他物质使用之间的关系。
该研究基于挪威全国电子青年调查 Ungdata 的数据，该调查于 2020 年至 2022 年期间在挪威的 113049 名高中生（15-19 岁）中进行，约占研究期间参加高中的学生的 65%。描述性分析用于估计第一次性行为时使用避孕措施的流行率，多变量逻辑回归分析用于调查避孕措施使用、社会人口因素、酒精中毒和物质使用之间的关系。
32%的挪威青少年在第一次性行为时没有使用避孕措施。报告使用避孕措施的女孩（57.4%）多于男孩（42.6%）。与男孩在第一次性行为时不使用避孕措施相关的因素包括父母没有大学/大学教育（OR=1.22：CI 1.13-1.32）、感知家庭经济状况不佳（OR=1.22：CI 1.06-1.40）、酒精中毒以及过去 12 个月中使用大麻或其他麻醉物质。同样的因素与女孩在第一次性行为时不使用避孕措施有关。此外，年龄大于 16 岁（OR=1.13：CI 1.06-1.19）也与第一次性行为时不使用避孕措施有关。
许多青少年在第一次性行为时没有使用避孕措施。酒精中毒和使用大麻或其他麻醉物质与使用避孕措施的可能性降低有关。这突显了预防努力的重要性，包括更早的预防教育，更侧重于不使用避孕措施的后果，以防止意外怀孕和性传播感染。
