Mothers and their pregnancies: a comparison of three population-based cohorts in Southern Brazil

Santos, Iná S.; Barros, Aluísio J. D.; Matijasevich, Alícia; Tomasi, Elaine; Medeiros, Ricardo de; Domingues, Marlos Rodrigues; Bertoldi, Andréa Dâmaso; Barros, Fernando C.; Victora, César G.

doi:10.1590/s0102-311x2008001500003

Cited by 36 publications

(49 citation statements)

References 15 publications

(15 reference statements)

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“…This analysis shows that the increase in preterm deliveries in 2004 occurred among both caesarian section babies and babies born by non-induced vaginal delivery. smoking during pregnancy fell significantly 12,13 . On the other hand, mothers were on average one centimeter shorter in 2004 than in 1993.…”

Section: Resultsmentioning

confidence: 96%

Preterm births, low birth weight, and intrauterine growth restriction in three birth cohorts in Southern Brazil: 1982, 1993 and 2004

et al. 2008

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Three birth cohort studies from 1982, 1993 and 2004, in Pelotas, Southern Brazil provided the data for this study of trends in preterm births, low birth weight, and intrauterine growth restriction. We found a slight increase in the period in the low birth weight prevalence from 9% to 10%. Intrauterine growth restriction decreased from 14.8% in 1982 to 9.4% in 1993, and subsequently increased to 12% in 2004, whereas preterm births increased markedly, from 6.3% in 1982 to 14.7% in 2004. This striking increment could not be explained by changes in maternal characteristics, as mothers in 2004 were heavier, smoked less during pregnancy and attended antenatal clinics more often and earlier than those of previous cohorts. However, pregnancy interruptions due either to caesarean sections or to inductions significantly increased. Caesareans increased from 28% in 1982 to 45% in 2004, and inductions were 2.5% in 1982 but 11.1% in 2004. The increase in preterms could be partially explained by the growing number of pregnancy interruptions, but there must be other causes since this increase was also observed among babies born by non-induced vaginal deliveries.

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Section: Resultsmentioning

confidence: 96%

Preterm births, low birth weight, and intrauterine growth restriction in three birth cohorts in Southern Brazil: 1982, 1993 and 2004

et al. 2008

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“…According to data from Thomson and Billewicz, the average cumulative weight gain in the first 10 weeks of gestation is 600 g, equivalent to 0?25 kg/m 2 for women of 1?55 m (35) . The 'ideal' increase in weight for women with normal BMI is estimated to be 20 % of the pre-pregnancy weight, which is associated with lower maternal and fetal morbidity and mortality in most studies (17)(18)(19)21,23,(36)(37)(38) . This is equivalent to 11 kg for a woman with a height of 1?55 m and a BMI of 23?0 kg/m 2 (about 4?5 kg/m 2 ).…”

Section: Outcome Measurementmentioning

confidence: 99%

Nutrition in Colombian pregnant women

Sarmiento

Ramírez

Kutschbach³

et al. 2012

Public Health Nutr.

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Objective: The present study aimed to evaluate the nutritional status of pregnant women in Colombia and the associations between gestational BMI and sociodemographic and gestational characteristics. Design: Cross-sectional study. A secondary analysis was made of data from the 2005 Demographic and Health Survey of Colombia. Setting: Bogotá, Colombia. Subjects: Pregnant adolescents aged 13-19 years (n 430) and pregnant women aged 20-49 years (n 1272). Results: The gestational BMI and sociodemographic characteristics of the adolescents differed from those of the pregnant adult women. Thirty-one per cent of the adolescents were underweight for gestational age, compared with 14?5 % of the adult women. Eighteen per cent of adolescents were overweight for gestational age, in contrast to 37?3 % of adult women. The overall prevalence of anaemia was 44?7 % and the prevalence of low serum ferritin was 38?8 %. Women within the high quintiles of the wealth index (prevalence odds ratio (POR) 5 0?56; 95 % CI 0?34, 0?91, P , 0?02) had lower odds of being underweight. Women who received prenatal care (POR 5 2?17; 95 % CI 1?48, 3?09, P , 0?001) and were multiparous (POR 5 2?10; 95 % CI 1?43, 3?15, P , 0?0 0 1) had higher odds of being overweight. Women in extended families (POR 5 0?63; 95 % CI 0?50, 0?95, P , 0?025) had lower odds of being overweight. Conclusions: Underweight in pregnant adolescents and overweight in adult women coexist as a double burden in Colombia. Factors associated with malnutrition among pregnant women and adolescents should be considered for future interventions in countries experiencing nutritional transition.

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“…The percentage of adolescent mothers in 2004 was higher than in the two previous cohorts. 19 Low birth weight (LBW, birth weight < 2,500 g) is particularly important among the problems associated with increased perinatal mortality and morbidity when the outcome of pregnancy is evaluated. It is also the most important independent indicator of infant RESUMO OBJETIVO: Avaliar a gravidez na adolescência como fator de risco para baixo peso ao nascer.…”

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confidence: 99%

Is adolescent pregnancy a risk factor for low birth weight?

et al. 2013

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OBJECTIVE:The objective of this study was to evaluate whether adolescent pregnancy is a risk factor for low birth weight (LBW) babies. METHODS:This was a cross-sectional study of mothers and their newborns from a birth cohort in Aracaju, Northeastern Brazil. Data were collected consecutively from March to July 2005. Information collected included socioeconomic, biological and reproductive aspects of the mothers, using a standardized questionnaire. The impact of early pregnancy on birth weight was evaluated by multiple logistic regression. RESULTS:We studied 4,746 pairs of mothers and their babies. Of these, 20.6% were adolescents (< 20 years of age). Adolescent mothers had worse socioeconomic and reproductive conditions and perinatal outcomes when compared to other age groups. Having no prenatal care and smoking during pregnancy were the risk factors associated with low birth weight. Adolescent pregnancy, when linked to marital status "without partner", was associated with an increased proportion of low birth weight babies. CONCLUSIONS:Adolescence was a risk factor for LBW only for mothers without partners. Smoking during pregnancy and lack of prenatal care were considered to be independent risk factors for LBW.

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Mothers and their pregnancies: a comparison of three population-based cohorts in Southern Brazil

Cited by 36 publications

References 15 publications

Preterm births, low birth weight, and intrauterine growth restriction in three birth cohorts in Southern Brazil: 1982, 1993 and 2004

Preterm births, low birth weight, and intrauterine growth restriction in three birth cohorts in Southern Brazil: 1982, 1993 and 2004

Nutrition in Colombian pregnant women

Is adolescent pregnancy a risk factor for low birth weight?

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