BACKGROUND: Suicide is a global public health importance and a second leading cause of death in adolescents. It is more common among adolescents and is considered as a serious public health problem worldwide. This study aims to determine the association between health risk behavior with suicidal ideation, continuous sadness and depression among Malaysian youth. METHODS: A cross-sectional study was carried out among 4088 youth aged 13–17 years old from 50 selected schools. A stratified random sampling was used to select respondents from different classes. The students were randomly selected using the same software throughout the country. Verbal consent was obtained from the student and parents prior to data collection. A standardized self-administered questionnaire adapted from the United States’ Youth Behaviour Risk Surveillance Survey (YBRSS) were used. RESULTS: The rates of Continuous Sadness (CS), Depression (DP) and Suicidal Ideation (SI) were 34.3%, 13.2% and 7.9% respectively. The multivariable-adjusted odds ratio showed that sexual abuse was associated with SI 8.04 (95% CI: 4.66, 13.84), CS 5.72 (95% CI: 3.21, 9.82) and DP 4.68% (95% CI: 2.80, 7.83); alcohol use was associated with SI 1.62 (95% CI: 1.06, 2.47) and DP 1.67 (95% CI: 1.20, 2.33). Female was associated with all suicidal behaviours: SI 2.48 (95% CI: 1.90, 3.24), CS 2.07 (95% CI: 1.80, 2.37) and DP 1.41 (95% CI: 2.17, 1.71). Smoking and drug was not associated with CS, DP and SI. CONCLUSIONS: Given the well-founded concern of increasing risk of suicidal behaviour among youth, preventive efforts should adopt a more comprehensive approach in dealing with sexual abuse and alcohol abuse, especially in female.

BACKGROUND: Self-efficacy is defined as his or her belief of their capacity to produce specific performance attainments where represent the ability of positive and negative control over their own motivation, behavior, and social environment. Interventions to increase self-efficacy are a potentially effective way of changing health behavior towards attractive results, however the subject has not been systematically reviewed. This review aims to assess the relationship between self-efficacy and change in good health behaviour. METHODS: A comprehensive and extensive search of four bibliographic data bases was conducted for papers reporting health promotion and educational interventions that explicitly targeted self-efficacy in order to change health behaviour in achieving better disease control.RESULTS: Out of 314 studies, 13 were included in the review. Of these, 8 were found to have significant association between self-efficacy and specific health behaviours. However, 5 studies failed to show any significant prediction towards health behavior. Another 6 studies showed either significant mediation effect or indirect relationship of self-efficacy and health behaviours. CONCLUSIONS: Self-efficacy appears to be an important psychosocial construct that may directly or indirectly affect health behaviour to control diseases. Self-efficacy may also function as a link between effective health promotion and educational interventions and health behaviour change in disease control.