چکیده (انگلیسی):

Adolescents’ vulnerability to HIV/AIDS infection arises from their immaturity , sexual risk behaviours as well as factors of a social, economic,
cultural and gender nature. Adolescence is a stage of the lifecycle in which managing constant and daily temptations and gaining and
maintaining healthy lifestyles are difficult tasks and a test of the powers of self-regulation. The purpose of the study is to analyze the relationship
between socio-demographic variables, school context, lifestyles, self-regulation skills and knowledge about HIV/AIDS in adolescents in
secondary education in Portugal. A quantitative, cross-sectional, analytical, descriptive and correlational study with a sample of 971 adolescents
in secondary education was conducted. The evaluation protocol includes a socio-demographic questionnaire, the school context, lifestyles,
the Reduced Questionnaire of Self-regulation, Knowledge About AIDS Scale for Adolescents. The sample consisted of 50.80% boys and
49.20% girls, 43.40% of the adolescents with or less than 16 years, 66.40% residing in rural areas and 77.30% cohabiting with parents. The
correlations indicate that among adolescents’ knowledge about AIDS and the subscale setting goals there is a positive and significant correlation
(r = 0.224, p = 0.000), as well as the overall value of the Self-regulation Scale. Significant and negative correlations are presented for the
impulse control subscale (r = -0.257, p = 0.000) and not significant to the overall self-regulation value (r = -0.041, p = 0.099), ranging in reverse,
meaning that more knowledge about AIDS, better self-regulation with regard to impulses subscale. Self-regulated behaviour requires control
of immediate needs, mobilization of thoughts, feelings and behaviours for purposes of long-term health, especially with regard to the prevention
of HIV/AIDS.