Weber Amy E, Boivin Jean-François, Blais Lucie, Haley Nancy, Roy Elise
Joint Departments of Epidemiology and Biostatistics and Occupational Health, McGill University, Canada.
J Urban Health. 2004 Dec;81(4):584-95. doi: 10.1093/jurban/jth142.
Prostitution among female street youths represents an important risk factor for several health problems. Little is known about the incidence and determinants of prostitution in this vulnerable population, and no data have been previously reported based on a longitudinal follow-up study. The objective of this study was to determine predictors of initiation into prostitution among female street youths. Female youths aged 14 to 25 years were enrolled in the Montreal Street Youth Cohort. They completed a baseline and at least one follow-up questionnaire between January 1995 and March 2000. Girls who reported never having engaged in prostitution at baseline were followed prospectively to estimate the incidence and predictors of prostitution. Of the 330 female street youths enrolled as of September 2000 in the cohort, 148 reported no history of involvement in prostitution at baseline and completed at least one follow-up questionnaire. Of these 148 girls, 33 became involved in prostitution over the course of the study (mean follow-up 2.4 years), resulting in an incidence rate of 11.1/100 person-years. Multivariate Cox regression analysis revealed having a female sex partner (adjusted hazard ratio [AHR] 3.8; 95% confidence interval [CI] 1.6-9.1) was an independent predictor of initiation into prostitution after controlling for having been on the street at age 15 years or younger (AHR 1.8, 95% CI 0.9-3.8), using acid or phencyclidine (PCP; AHR 2.0, 95% CI 0.9-4.6), using heroin (AHR 1.9, 95% CI 0.7-5.5), the use of drugs greater than twice per week (AHR 1.9, 95% CI 0.9-4.2), and injection drug use (AHR 0.8, 95% CI 0.3-2.4). The incidence of prostitution in female street youths was elevated. Having a female sex partner was a strong predictor of initiating involvement in prostitution.
女性街头青少年从事性交易是引发多种健康问题的重要风险因素。对于这一弱势群体中性交易的发生率及决定因素，人们了解甚少，此前也没有基于纵向随访研究报告过相关数据。本研究的目的是确定女性街头青少年开始从事性交易的预测因素。年龄在14至25岁的女性青少年被纳入蒙特利尔街头青少年队列研究。她们在1995年1月至2000年3月期间完成了一份基线调查问卷以及至少一份随访调查问卷。对那些在基线调查时报告从未从事过性交易的女孩进行前瞻性跟踪，以评估性交易的发生率及预测因素。截至2000年9月，队列研究中登记的330名女性街头青少年中，有148人在基线调查时报告无性交易史且完成了至少一份随访调查问卷。在这148名女孩中，有33人在研究过程中开始从事性交易（平均随访2.4年），发生率为11.1/100人年。多变量Cox回归分析显示，在控制了15岁及以下流落街头（调整后风险比[AHR]为1.8，95%置信区间[CI]为0.9 - 3.8）、使用迷幻剂或苯环己哌啶（PCP；AHR为2.0，95%CI为0.9 - 4.6）、使用海洛因（AHR为1.9，95%CI为0.7 - 5.5）、每周吸毒超过两次（AHR为1.9，95%CI为0.9 - 4.2）以及注射吸毒（AHR为0.8，95%CI为0.3 - 2.4）等因素后，有女性性伴侣（调整后风险比[AHR]为3.8；95%置信区间[CI]为1.6 - 9.1）是开始从事性交易的独立预测因素。女性街头青少年中性交易的发生率较高。有女性性伴侣是开始涉足性交易的有力预测因素。
