Arpaporn PowwattanaPantip RamasootaMahidol University2018-07-122018-07-122008-04-01Journal of the Medical Association of Thailand. Vol.91, No.4 (2008), 542-55001252208012522082-s2.0-44249107352https://repository.li.mahidol.ac.th/handle/20.500.14594/19704Objective: To test the differences among the predictors between sexually active and non-active female adolescents. Study Design: Descriptive research. Material and Method: The participants included 581 Thai female adolescents: 262 sexually non-active and 319 sexually active (average age = 19.7 years). They completed questionnaires measuring self-discrepancy, depression, power in relationships (decision making dominance and relationship control), sexual self-efficacy (ability to say no, assertiveness, precaution), cognitive strategies (gain thinking: relationship, development, curiosity; punishment avoidance thinking: negative consequence, ethical-related, fear-related), and sexual behavior. The t-test and the Hierarchical Regression were employed for data analyses. Results: Among the sexually active, 68.8% had vaginal or anal sexual intercourse (11.7%) without using a condom. Significant enabling predictors among the sexually active included sexual self-efficacy (precaution), and gain thinking (relationship), whereas punishment avoidance thinking (negative consequence) had a negative influence: it accounted about 11.0%. Among sexually non-active, alcohol consumption, power in a relationship (decision making dominance), and gain thinking (relationship) accounted for 26.9% of the variance in explaining sexual behavior. Conclusion: A specific link between sexual self-efficacy and cognitive strategies will be drawn to develop a program for the sexually active. Implications for behavioral modification addressing alcohol drinking and power in a relationship should be discussed among the sexually non-active.Mahidol UniversityMedicineArticleSCOPUS