Magnitude and its associated factors of teenage pregnancy among antenatal care attendees in Bahir Dar city administration health institutions, northwest, Ethiopia

Background Worldwide teenage pregnancies develop many devastating complications, both the mother and the neonate like developing anemia, nutritional deficiency, pregnancy induced hypertension, preterm baby, inadequate weight gains and obstructed labor, fistula and sepsis. Reproductive health concerns of adolescents the main emphasis area which increasing international attention in recent years. Therefore, we intended to assess the magnitude and its associated factors of teenage pregnancy in Bahir Dar city administration health institutions, northwest, Ethiopia, 2017. Methods A health institution based a cross-sectional study was conducted among pregnant mothers from February 20-March 27, 2017 in Bahir Dar city administration. Five hundred forty-nine participants were selected by face to face interview and medical card review by using systematic random sampling technique every four intervals for each health institution. Bivariate and multivariate data analysis was performed using Statistical Package for the Social Sciences (SPSS) Windows version 21 and level of significance of association was determined at P - value < 0.05. Result The study identified 12.2%with (95%CI (9.5, 14.9)) of pregnant women were teenagers. Multivariable logistic regression analysis showed that: [(AOR (95% CI)) rural residency 3.21(1.234, 9.345), age at first marriage < 18 years 9(7.823, 17.571) and not using contraception prior to this pregnancy 5.22(3.243, 11.675)] were significantly associated with teenage pregnancy. Conclusion The magnitude of teenage pregnancy was comparable to the 2016 Ethiopian demographic health survey finding. Rural residency, age at first marriage and not using of contraception prior to the current pregnant were significantly associated with teenage pregnancy. As per the findings, awareness creation to the rural population, advocating utilization of contraception, avoid early marriage and put the mindset the effect of teenage pregnancy for those are needed.