Vol. 5 | No. 1 | April 2018| Jurnal Kesehatan Reproduksi: 50-59 50 1 Magister Kesehatan Ibu dan Anak, Departemen Ilmu Kesehatan Masyarakat FKKMK UGM 2 Department Obstetri & Ginekologi FKKMK UGM 3 Konsensus Perlindungan Perempuan UGM THE ROLES OF PARENTS AND PEER FRIENDS ON ADOLESCENT PREMARITAL SEX BEHAVIOR IN HIGH SCHOOL STUDENTS OF BUOL DISTRICT Nurhaya S Patui 1 , Djaswadi Dasuki 2 , Budi Wahyuni 3 ABSTRACT Background: Most adolescents or teens consider premarital sex behavior is a common and normal actvity to do. Parents less able to communicate with their children will provoke conficts in parents-children relatonship and this may lead to impacts on premarital sex behavior in adolescents. Peer friends are also a source of informaton about sex that is quite signifcant in the shaping of adolescent knowledge, attude and sexual behavior. However, informaton from peers may lead to negatve impacts in adolescents such as premarital sex. This actvity can lead to unwanted pregnancy, STIs, aborton and school dropouts. Objectve: To determine the relatonship between the roles of parents and peers in adolescent premarital sexual behavior in SMAN 1, SMA 2, SMK 1 and MAN in Buol. Methods: This study was observatonal with a cross-sectonal design using quanttatve and qualitatve approaches. The study was held in SMAN 1, SMAN 2, SMK 1 and MAN of Buol District in Central Sulawesi with 192 adolescent as the research subjects. In-depth interviews were done to four selected informants. Result and Discussion: The results of bivariate analysis showed a signifcant relatonship between the roles of parents and peers in adolescent premarital sexual behavior. Adolescents with low reproductve health informaton than that of parents have 2 tmes higher chance to perform high-risk sexual behaviors than adolescents with high reproductve health informaton than their parents. Adolescents with peers who give bad infuence have a 5 tmes higher risk sexual behavior than teens with peers whose negatve infuence is lower. The results of this study also showed that there is a relatonship between the infuence of religiosity and pornographic media associated with high risk sexual behavior Conclusion: High-risk sexual behavior in adolescents is infuenced by the parents’ role, poor informatons on reproductve health high bad infuence from peers is, low religiosity and exposure to pornographic media. Keywords: role of parents, peers, premarital sexual behavior ABSTRAK Latar Belakang: Sebagian besar remaja atau remaja menganggap perilaku seks pranikah adalah kegiatan umum dan normal untuk dilakukan. Orang tua yang kurang mampu berkomunikasi dengan anak-anak mereka dapat menyebabkan dampak pada perilaku seks pranikah pada remaja. Teman sebaya juga merupakan sumber informasi tentang seks yang cukup signifkan dalam membentuk pengetahuan remaja, sikap dan perilaku seksual. Namun, informasi dari teman sebaya dapat menyebabkan dampak negatf pada remaja sepert seks pranikah. Kegiatan ini dapat menyebabkan kehamilan yang tdak diinginkan, IMS, aborsi dan putus sekolah.