Objectives We describe current use of long acting reversible contraception LARC (tier 1), hormonal (tier 2), barrier and traditional contraceptive methods (tier 3) by adolescent women in Mexico. We test whether knowledge of contraceptive methods is associated with current use of LARC. Methods We used the 1992, 1997, 2006, 2009 and 2014 waves of a nationally representative survey (ENADID). We used information from n = 10,376 (N = 3,635,558) adolescents (15–19 years) who reported ever using any contraceptive method. We used descriptive statistics and logistic regression models to test the association of knowledge of method tiers with use of tier 1 (LARC) versus tier 2, tier 3, and no contraceptive use. Results Over time, LARC use in the overall sample was flat (21 % in 1992, 23 % in 2014; p = 0.130). Among adolescents who have had a pregnancy, LARC use has increased (24 % in 1992 to 37 % in 2014). Among adolescents who did not report a pregnancy, current LARC use has remained low (1 % in 1992 and 2 % in 2014). We found positive association between LARC use and knowledge of tier 1 methods. In the overall sample LARC use is strongly correlated with exposure to marriage compared to use of tier 2 or tier 3 methods. Discussion Among adolescents in Mexico who are currently using modern methods, LARC use is relatively high, but remains primarily tied to having had a pregnancy. Our study highlights the need to expand access to LARC methods outside the post-partum hospital setting.

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Group antenatal care is an innovative model of health care in which all components of antenatal care—clinical, educational, and supportive—happen in a group context with health care professionals as facilitators. CenteringPregnancy is the most studied model of group antenatal care, now widely implemented in the United States. This model has been shown to be effective in improving health and behavioral outcomes in the United States, but there is less known about the experience adapting group antenatal care in settings outside the US health care system. This article describes the adaptation of the CenteringPregnancy model to a Mexican context. We describe the Mexican health care context and our adaptation process and highlight key factors to consider when adapting the content and modality of the CenteringPregnancy model for diverse populations and health systems. Our findings are relevant to others seeking to implement group antenatal care in settings outside the US health care system.

Group prenatal care is an alternative model of care during pregnancy, replacing standard individual prenatal care. The model has shown maternal benefits and has been implemented in different contexts. We conducted a narrative review of the literature in relation to its effectiveness, using databases such as PubMed, EBSCO, Science Direct, Wiley Online and Springer for the period 2002 to 2018. In addition, we discussed the challenges and solutions of its implementation based on our experience in Mexico. Group prenatal care may improve prenatal knowledge and use of family planning services in the postpartum period. The model has been implemented in more than 22 countries and there are challenges to its implementation related to both supply and demand. Supply-side challenges include staff, material resources and organizational issues; demand-side challenges include recruitment and retention of participants, adaptation of material, and perceived privacy. We highlight specific solutions that can be applied in diverse health systems.

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