Modeling time to sexual debut among Kenyan youths: The cox ph regression model approach
Abstract
One in every five persons in the world is considered a 'youth' aged 15 - 24 and almost
85% live in developing countries. Youth, particularly those in developing countries, face
increased exposure to risks associated with early sexual initiation and unprotected sex.
Early sexual debut among youths is associated with considerable negative health and
development outcomes. This includes an association with increased lifetime prevalence
of sexual partners, thereby increasing the risk exposure to sexually transmitted diseases,
including HIY/AIDS, and pregnancy. Early sexual debut also increases the risk of HPY
infection, due to cervical immaturity; and thus the risk of cervical cancer increases.
Additionally, given the risk of pregnancy, early sexual initiators are less likely to
complete their schooling thereby limiting their social and vocational futures. Therefore,
an understanding of the trends of sexual debut and its correlates among the youths in
Kenya is needed.
This study sought to establish the probability of Kenyan youths remaining virgin beyond
any given time after puberty using a Kaplan-Meier Survival curve. In addition, the study
also established the correlates of sexual debut among the Kenyan youths using a Cox PH
Regression Model. The study utilized the Kenya Demographic Health Survey Data for
2008 which was analyzed using SPSS version 18 and Stata version 11.
The study found that 56.4% of males and 45.1 % of females reported having had their first
sexual intercourse before the age of 18 years. The study established that sexual debut
among the Kenyan' youths was significantly associated with gender. In addition,
education level was found to be significantly associated with sexual initiation among the
Kenyan youths. Further, youths in the middle and high income class were significantly
more likely to delay sexual initiation compared with the youths in the low income class.
Finally, female youths who were exposed to drugs were significantly more likely to
initiate sexual intercourse when relatively young compared to female youths who were
not exposed to drugs.
Publisher
School of mathematics