[Type of partner, socio-economic factors and risk practices in men who have sex with men].
OBJECTIVE
Men who have sex with men (MSM) perform risk practices that pose a challenge to prevention strategies. The aim of this study was to analyse the association between receptive and insertive unprotected anal intercourse (RUAI and IUAI) according to the type of partner and the practice of barebacking with socioeconomic factors.


METHODS
A descriptive study was conducted through a self-administered questionnaire distributed by a software tool in social networks and non-governmental organizations from June-2014 to January-2015. Participants consisted of 601 people living in Spain. Pearson's χ(2) test and logistic regression models were applied with odds ratios (OR) and 95% confidence intervals (95% CI).


RESULTS
In stable couples, the risk of RUAI increased in individuals with a medium income (OR: 1.79; 95%CI: 1.14-2.80) and in those who lived together (OR: 2.94; 95%CI: 1.74-4.98) and IUAI increased in individuals living with a partner (OR: 5.58; 95%IC: 3.24-9.59). When the partner was a friend, the risk of RUAI was higher among individuals with secondary education (OR: 2.20; 95%CI: 1.44-3.36) and those who were retired (OR: 3.6; 95%CI: 1.25-10.37), while living with a partner was a protective factor (OR: 0.56; 95%CI: 0.32-0.98). The risk of barebacking was greater in younger men (OR: 2.59; 95%CI: 1.27-5.28), in those with secondary education (OR: 1.51; 95%CI: 0.99-2.29) and in those living with a partner (OR: 3.64; 95%CI: 2.12-6.24).


CONCLUSIONS
There is a need to reduce vulnerability due to socioeconomic factors that influence engagement in risk practices and to highlight the importance of barebacking, mainly in young MSM. Partner-based interventions and harm reduction strategies should be incorporated into preventive strategies.
Departamento de Fisiatría y Enfermería, Facultad de Ciencias de la Salud, Universidad de Zaragoza, Zaragoza, España. Electronic address: angelgasch@unizar.es.
Àngel
À
Gasch Gallén
Departamento de Fisiatría y Enfermería, Facultad de Ciencias de la Salud, Universidad de Zaragoza, Zaragoza, España.
Concepción
C
Tomás Aznar
Departamento de Microbiología, Medicina Preventiva y Salud Pública, Facultad de Medicina, Universidad de Zaragoza, Zaragoza, España.
Encarnación
E
Rubio Aranda
D000293:Adolescent; D000328:Adult; D000368:Aged; D001727:Bisexuality / Q000706:statistics & numerical data; D040261:Harm Reduction; D018451:Homosexuality, Male / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D008875:Middle Aged; D009938:Organizations; D012309:Risk-Taking; D012747:Sexual Partners; D060756:Social Networking; D012959:Socioeconomic Factors; D013030:Spain; D011795:Surveys and Questionnaires; D047568:Unsafe Sex / Q000706:statistics & numerical data*; D055815:Young Adult
Comportamiento de riesgo; Factores socioeconómicos; Homosexualidad masculina; Male homosexuality; Risk behavior; Sexo no seguro; Socioeconomic factors; Unsafe sex