Prevalence of late initiation of prenatal care. Association with the socioeconomic level of the pregnant woman. Cross-sectional study. Bucaramanga, Colombia, 2014-2015

摘要

Objective: To describe the prevalence of lateinitiation of prenatal care and assess its associationwith the socioeconomic level of the pregnantwoman.Materials and methods: Cross-sectional study.Pregnant women from the urban area of Bucaramangawere included using sampling basedon proportional affixation quotas according to thesocioeconomic classification of the neighbourhoodwhere they lived. Late initiation was considered tooccur when prenatal care was started at 12 weeksor more of gestation. The association between lateinitiation and socioeconomic bracket was assessed,controlling by sociodemographic and clinical variablesof the pregnant woman, and a multivariatelog-binomial regression model was developed toestimate prevalence ratios and their 95% confidenceintervals (95% CI).Results: Overall, 391 pregnant women between18 and 43 years of age (median 23) were included.Median for schooling was 11 years, with a rangebetween 0 and 25 years. Late initiation was foundin 29.7% (95% CI: 25.2-34.5) of the women.Association was found with low income brackets(prevalence ratio [PR] = 1.57; 95% CI: 1.08-2.56), no affiliation to social security at the startof pregnancy (PR=2.73; 95% CI: 2.04-3.67), andlow schooling (PR=1.46; 95% CI: 1.02-2.16), andage between 18 and 24 years (PR = 1.53; 95%CI: 1.12-1.70). Remembering the date of the lastmenstruation (PR=0.48; 95% CI: 0.32-0.71) andbeing in a stable relationship (PR=0.82; 95% CI:0.64-0.98) were protective factors.