Changes in perinatal health in two birth cohorts (1997/1998 and 2010) in São Luís, Maranhão State, Brazil

Silva, Antônio Augusto Moura da; Batista, Rosângela Fernandes Lucena; Thomaz, Érika Bárbara Abreu Fonseca; Ribeiro, Cecília Cláudia Costa; Filho, Fernando Lamy; Lamy, Zeni Carvalho; Alves, Maria Teresa Seabra Soares de Britto e; Loureiro, Flávia Helen Furtado; Cardoso, Viviane Cunha; Bettiol, Heloísa; Barbieri, Marco Antônio

doi:10.1590/0102-311x00100314

Cited by 34 publications

(30 citation statements)

References 37 publications

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“…In 2010, mothers were asked whether they smoked during pregnancy (yes/ no) and the number of cigarettes. Additionally, in both cohorts, we collected information on maternal age at birth (numeric variable), education (total amount of years the mother attended to school), and family income (amount earned during the last month) (Silva et al 2001(Silva et al , 2015Cardoso et al 2007).…”

Section: Methodsmentioning

confidence: 99%

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Maternal pregnancy smoking in three Brazilian cities: trends and differences according to education, income, and age

Mola

Cardoso

Batista

et al. 2020

Int J Public Health

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Objectives To estimate and assess pregnancy smoking trends since 1978, according to sociodemographic characteristics, in three Brazilian sites. Methods We used cross-sectional data from the perinatal studies of nine birth cohorts, located in the southeast (Ribeirão and 2010) regions of Brazil. We estimated the prevalence of pregnancy smoking at each time point according to age, education, and family income, in each cohort, and evaluated smoking trends. Results We analyzed data of 17,275 women in Ribeirão Preto, 19,819 in Pelotas, and 7753 in São Luís. Smoking decreased by 59% in Ribeirão Preto (p \ 0.001), 54% in Pelotas (p \ 0.001), and 32% in São Luís (p \ 0.001). However, among those with 0-4 years of education, smoking did not change in Ribeirão Preto (p-trend = 0.501) nor São Luís (p = 0.556) and increased in Pelotas (p-trend = 0.003).Conclusions Pregnancy smoking has been declining during the last decades. However, among less-educated women, pregnancy smoking did not change in two sites and increased in one of them.

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Section: Methodsmentioning

confidence: 99%

“…Perinatal interviews in both cohorts were conducted by trained undergraduate or graduate students, in the first 12-36 h after delivery in the hospitals. Further details on the studies methodologies have been published elsewhere (da Silva et al 2001(da Silva et al , 2015Cardoso et al 2007).…”

Section: Participants and Proceduresmentioning

confidence: 99%

Maternal pregnancy smoking in three Brazilian cities: trends and differences according to education, income, and age

Mola

Cardoso

Batista

et al. 2020

Int J Public Health

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“…The study was limited to women residing in the municipality of São Luís for at least six months. Hospital births accounted for 98% of births in 2010 23,24 . For the selection of maternity hospitals, data recorded in the Brazilian National System of Information on Live Births (SINASC) in the year of 2008 were retrieved, and 18,255 live births of residents in the municipality were recorded.…”

Section: Samplingmentioning

confidence: 99%

“…After the exclusion of hospitals in which less than 100 births were performed in the year of 2008 (3.3% of all hospital births in the city of São Luís), 10 maternity wards were selected. Hence, the sample frame included 94.7% of all births that occurred in 2010 23,24 . A systematic sampling technique was used, and the sample was stratified by maternity hospital with shares proportional to the number of births in each maternity ward.…”

Section: Samplingmentioning

confidence: 99%

“…On the first day, for each hospital or maternity, a casual number between 1 and 3 was randomly chosen. Then, the sampling interval value was added to the casual number, and all births were randomly drawn for this study, successively 23,24 . With the study sample, it was possible to estimate rates of LBW, PTB or IUGR of around 50% (maximum product of p and q, being p the estimated rate and q = 1 -p) with an accuracy of 2 and 99% confidence level.…”

Section: Samplingmentioning

confidence: 99%

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Maternal socioeconomic factors and adverse perinatal outcomes in two birth cohorts, 1997/98 and 2010, in São Luís, Brazil

Cavalcante

Ribeiro

Lamy-Filho

et al. 2017

Rev. bras. epidemiol.

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Several studies have identified social inequalities in low birth weight (LBW), preterm birth (PTB), and intrauterine growth restriction (IUGR), which, in recent years, have diminished or disappeared in certain locations. Objectives: Estimate the LBW, PTB, and IUGR rates in São Luís, Maranhão, Brazil, in 2010, and check for associations between socioeconomic factors and these indicators. Methods: This study is based on a birth cohort performed in São Luís. It included 5,051 singleton hospital births in 2010. The chi-square test was used for proportion comparisons, while simple and multiple Poisson regression models with robust error variance were used to estimate relative risks. Results: LBW, PTB and IUGR rates were 7.5, 12.2, and 10.3% respectively. LBW was higher in low-income families, while PTB and IUGR were not associated with socioeconomic factors. Conclusion: The absence or weak association of these indicators with social inequality point to improvements in health care and/or in social conditions in São Luís.

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Early weaning and family characteristics are associated with greater sodium intake in children between 13 and 35 months: BRISA birth cohort

et al. 2022

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Children are consuming less healthy foods and this eating behavior exposes the child to greater sodium intake. Evaluate the association between family, maternal and child characteristics with sodium intake by children aged 13-35 months. A retrospective cohort study with data from 1,185 children. The children’s dietary sodium intake was assessed by a 24-hour diet recall survey. Values ≥1200mg were considered excessive intake. The association between sodium intake and independent variables was assessed by a three-level logistic hierarchical regression model. Variables with p-value <0.05 were retained in the model. Most children were male (51.2%), eutrophic (63.2%) and not exclusively breastfed (EBF) for six months (58.4%). The average sodium intake was 925 mg (± 410.4). The prevalence of excessive sodium intake was 18.5% and was associated with the variables children of younger mothers (<20 years old OR=4.04, 95%CI=1.64-9.99; ≥20 to <35 years old OR=2.48, 95%CI=1.10-5.63), having 4 or more children (OR=2.51, 95%CI=1.29-4.89), lower family income (≥1 and <3 minimum wages OR=0.60, 95%CI=0.39-0,93; ≥3 minimum wages OR=0.50, 95%CI=0.30-0.82), and not being exclusively breastfed until six months (OR=1.64, 95%CI=1.14-2.34).The average sodium intake of children was higher than the recommendation for adequate intake, pointing to a high consumption of this micronutrient in the first years of life. Excessive sodium intake seems to be linked to unfavorable socioeconomic conditions. Avoiding early weaning is the only possible intervention in this scenario.

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Changes in perinatal health in two birth cohorts (1997/1998 and 2010) in São Luís, Maranhão State, Brazil

Cited by 34 publications

References 37 publications

Maternal pregnancy smoking in three Brazilian cities: trends and differences according to education, income, and age

Maternal pregnancy smoking in three Brazilian cities: trends and differences according to education, income, and age

Maternal socioeconomic factors and adverse perinatal outcomes in two birth cohorts, 1997/98 and 2010, in São Luís, Brazil

Early weaning and family characteristics are associated with greater sodium intake in children between 13 and 35 months: BRISA birth cohort

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