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Objective To determine the incidence of unsafe sex among university students and its association with heavy episodic drinking (HED) and cannabis use. Method A cohort study was carried out from 2005 to 2011 among university students of the Compostela Cohort (n = 517). HED was measured using the third question of the Alcohol Use Disorders Identification Test (AUDIT). Unsafe sex was considered to be sex under the influence of alcohol (SUA) and sex without a condom (SWC). Logistic regression models were created. Results The incidence of SUA was 40.9% for women and 53.0% for men, while the SWC incidence ranged from 13.7% for women to 25.7% for men. HED and cannabis use were associated with SUA in both women (OR = 2.08, 95% CI: 1.03-4.21; OR = 2.78, 95%CI: 1.57-4.92) and men (OR = 4.74 (95%CI: 1.49-15.09; OR = 4.37, 95%CI: 1.17- 16.36). Moreover, cannabis use in women was associated with SWC (OR = 2.96, 95%CI: 1.52-5.75). The population attributable fractions of SUA for HED were 24.7% and 52.9% for women and men, respectively. Conclusions HED and cannabis use represent a public health problem due to their association with a variety of problems, including engagement in unsafe sex. Our results suggest that a significant proportion of unsafe sex could be avoided by reducing this consumption pattern of alcohol.
Moure-Rodríguez, L., Doallo, S., Juan-Salvadores, P., Corral, M., Cadaveira, F., & Caamaño-Isorna, F. (2016). Consumo intensivo de alcohol y cannabis, y prácticas sexuales de riesgo en estudiantes universitarios. Gaceta Sanitaria, 30(6), 438–443. https://doi.org/10.1016/j.gaceta.2016.03.007