The Role of Effective Knowledge on Contraceptive Methods Use in the Replication of Mother-Daughter Adolescent Pregnancy in Mexico.

An important gap in the literature is the analysis of the role of effective knowledge concerning use of contraceptive methods in the intergenerational reproduction of adolescent pregnancy in low- and middle-income countries. Using data from the 2014 Mexico National Survey of Demographic Dynamics, we conducted a retrospective cohort and complete case analysis of women aged ≤ 19 years cohabitating with their mothers and who self-reported having had sexual intercourse at the moment of the survey (n = 5143). We estimated instrumental variable probit models (IV-probit) to assess the association between effective knowledge concerning the use of contraceptive methods and adolescent pregnancy. We stratified our models according to parental history of adolescent pregnancy. Adolescent pregnancy prevalence in our sample was 58.7%. The IV-probit model showed that mothers with a history of adolescent pregnancy were 12.1 percentage points more likely to have daughters who experience adolescent pregnancy. In addition, daughters with effective knowledge concerning the use of contraceptive methods were 1.3 percentage points less likely to experience an adolescent pregnancy. Our findings carry relevant implications for policies seeking to reduce adolescent pregnancy. They highlight the need for policies and programs that tackle the intergenerational transmission of sexual and reproductive behaviors by increasing the information available to adolescents and enhancing their effective knowledge about the use of contraceptive methods. Identifying population groups at higher risk of adolescent pregnancy can contribute to the design of successful reproductive health policies in Mexico and other low- and middle-income countries.