I would like also to say thank you to the chair, Asst. Prof. Pimonpan Isarabhakdi, Ph. D. , and the external examiner, Prof. Surasak Taneepanichskul, M. D. , Ph. D. This thesis will not have been possible without their excellent support and effort. I would like to express my gratitude to all Ajarns of IPSR and guest lecturers for their valuable teaching in their expertise fields as well as their guidance to improve my knowledge. A special acknowledgement to Mrs. Luxana Nil-Ubol for her endless efforts.
A lot of thanks to my office Badan Kependudukan dan Keluarga Berencana Nasional (BKKBN) for granting me this prestigious fellowship which made me possible to carry out this program. I would like to express special thanks to Mr. Eddy Hasmi, Mr. Dora, Mrs. Yuyun and all friends in BKKBN for their helpful supports. Then, I would like thanks to my parents “bapak Donny S. M. Situmorang and ibu Theresia Lauretta Hutabarat”, my brothers “Freddy and Christian”, and my girlfriend “Henny Pakpahan” for supporting me mentally and physically, and encourage me during the study period in Mahidol University.
However, this issue should be given attention because the rate increased from 5% to 6. 4% between 2002 and 2007. Therefore, the main aim of this study is to analyze factors influencing premarital sexual intercourse among in-school late adolescents in Indonesia. This study uses secondary data from the research of the Indonesian Young Adult Reproductive Health Survey (IYARHS) 2007. The study population of 6,792 in-school late adolescents aged 15-19 years was selected from a total of 19,311 unmarried Indonesian young adults that were interviewed.
The findings illustrate that 2. 4% of the in-school late adolescents have engaged in premarital sexual intercourse. Evidence indicated that sex, age, place of residence, knowledge of sexual reproductive health (SRH), knowledge of contraceptive methods, source of SRH information, attitude towards acceptance of premarital sexual intercourse, relationship status defined by having a boyfriend or girlfriend, risky consumption behaviors, and peer influences have a significant association with in-school adolescents that have experienced premarital sexual intercourse.