Fatores de risco associados ao nascimento de recém-nascidos de muito baixo peso em uma população de baixa renda

Assessment of the completeness of filling the pregnant woman's card from the Ministry of Health: a national, cross-sectional study

This article aims to evaluate the completeness of the pregnant woman's card filling according to a model standardized by the Ministry of Health. Hospital based, nationwide, cross-sectional study conducted between 2011 and 2012, evaluated data from pregnant women's cards. Variables related to personal, obstetric history and current pregnancy data were used to assess completeness. We used the Kotelchuck index for quantitative evaluation. We analysed 6,577 cards, equivalent to 39% of the cards presented at the time of delivery. The mean completeness was overall "bad" in Brazil and macro-regions, except in the Southern region. Nationwide, the mean completion was "regular" for personal antecedents, "good" for obstetric history, and "bad" for fields related to the current pregnancy. Prenatal care was adequate for 58% of pregnant women. We observed a reduced use of the card recommended by the Ministry of Health and failures in the completeness of filling valuable information of the pregnant woman's card, related to the current pregnancy.

The intergenerational relationship between conditional cash transfers and newborn health

Background

Lack of nutrition, inadequate housing, low education and limited access to quality care can negatively affect children’s health over their lifetime. Implemented in 2003, the Bolsa Familia (“Family Stipend”) Program (PBF) is a conditional cash transfer program targeting poor households in Brazil. This study investigates the long-term benefits of cash transfers through intergenerational transmission of health and poverty by assessing the early life exposure of the mother to the PBF.

Methods

We used data from the 100M SINASC-SIM cohort compiled and managed by the Center for Data and Knowledge Integration for Health (CIDACS), containing information about participation in the PBF and socioeconomic and health indicators. We analyzed five measures of newborn health: low (less than 2,500 g) and very low (less than 1,500 g) birth weight, premature (less than 37 weeks of gestation) and very premature (less than 28 weeks of gestation) birth, and the presence of some type of malformation (according to ICD-10 codes). Furthermore, we measured the early life exposure to the PBF of the mother as PBF coverage in the previous decade in the city where the mother was born. We applied multilevel logistic regression models to assess the associations between birth outcomes and PBF exposures.

Results

Results showed that children born in a household where the mother received BF were less likely to have low birth weight (OR 0.93, CI; 0.92-0.94), very low birth weight (0.87, CI; 0.84-0.89), as well as to be born after 37 weeks of gestation (OR 0.98, CI; 0.97-0.99) or 28 weeks of gestation (OR 0.93, CI; 0.88-0.97). There were no significant associations between households where the mother received BF and congenital malformation.

On average, the higher the early life exposure to the PBF of the mother, the lower was the prevalence of low birth weight, very low birth weight and congenital malformation of the newborn. No trend was noted for preterm birth.

Conclusion

The PBF might have indirect intergenerational effects on children’s health. These results provide important implications for policymakers who have to decide how to effectively allocate resources to improve child health.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12889-022-12565-7.

Sociodemographic and obstetric factors related to low birth weight in the context of early pregnancy

Abstract Objectives: to analyze sociodemographic and obstetric factors that may influence the occurrence of low birth weight in the context of early pregnancy. Methods: the sample consisted of 232 pregnant teenagers, aged 10-19 years old, were assisted at a public maternity hospital in Aracaju-SE during the period of August 2012 to July 2016. The data collection was conducted through a structured questionnaire. Results: low birth weight was observed in 41.38% of the newborns and there was a statistical association between the educational level and the marital status with the occurrence of low birth weight in newborns among teenage mothers, with p=0.0286 and p=0.0247, respectively. Conclusions: the socioeconomic factors may contribute to the occurrence of low birth weight in newborns of teenage mothers and teenage pregnancy at this age represents a serious public health problem.

Primary Health Care as a guide for assistance to infants at risk of neurodevelopmental disorders

Purpose Characterize infants at risk of neurodevelopmental disorders according to sociodemographic and health profiles and describe their monitoring in Basic Health Units (UBS) under different management models. Methods Data were collected from medical records of infants at risk of neurodevelopmental disorders in the west region of the city of Sao Paulo from August 2013 to February 2014 (phase 1 - characterization; phase 2 - monitoring). Results Of the 225 individuals assessed in the first phase of the study, 51.1% were female and 7.11% were twins. Adolescent (45.2%), brown (50.56%), single (46.09%), complete primary education (47.60%) mothers were predominant. The mean number of prenatal visits was 7.12. Most mothers had vaginal delivery (62.22%) at mean gestational age of 37.05 weeks. Mean Apgar scores at the 1st and 5th minutes were 7.13 and 8.80, respectively. Mean weight at birth was 2597.21g., with 50.22% of newborns weighting ≤2500g. In its second phase, the study describes and compares the follow-up of 55 infants according to the UBS management model: 28 in UBS/"Estratégia Saúde da Família" (UBS/ESF) and 27 in traditional UBS (UBS/T). UBS/ESF presented higher mean of consultations (p=0.006). Longer interval between consultations was observed at UBS/T. No records of development milestones were found in 56% of the sample. Growth measures were better registered at UBS/ESF. In both management models, the number of consultations was smaller and the interval between them was shorter than those recommended by the Brazilian Ministry of Health. Conclusion According to the recommended guidelines of the "Rede Cegonha" public policy, gaps in the monitoring of infants at risk of neurodevelopmental disorders are still observed.

Factors associated with preventable infant death: a multiple logistic regression

OBJECTIVE

To identify and analyze factors associated with preventable child deaths.

METHODS

This analytical cross-sectional study had preventable child mortality as dependent variable. From a population of 34,284 live births, we have selected a systematic sample of 4,402 children who did not die compared to 272 children who died from preventable causes during the period studied. The independent variables were analyzed in four hierarchical blocks: sociodemographic factors, the characteristics of the mother, prenatal and delivery care, and health conditions of the patient and neonatal care. We performed a descriptive statistical analysis and estimated multiple hierarchical logistic regression models.

RESULTS

Approximatelly 35.3% of the deaths could have been prevented with the early diagnosis and treatment of diseases during pregnancy and 26.8% of them could have been prevented with better care conditions for pregnant women.

CONCLUSIONS

The following characteristics of the mother are determinant for the higher mortality of children before the first year of life: living in neighborhoods with an average family income lower than four minimum wages, being aged ≤ 19 years, having one or more alive children, having a child with low APGAR level at the fifth minute of life, and having a child with low birth weight.

The Independent Importance of Pre-pregnancy Weight and Gestational Weight Gain for the Prevention of Large-for Gestational Age Brazilian Newborns

Objectives To study the independent effect of pre-pregnancy weight, gestational weight gain (GWG), and other important risk factors on newborn birth weight. Methods Baseline data of 435 adult women and their singletons born between January and February 2012 at a public hospital in Brazil were used. Logistic regression was applied to determine the independent importance of pre-pregnancy weight and GWG for large for gestational age (LGA) newborns. Results Among all mothers, 37.9 % were overweight and obese before pregnancy and 45.3 % experienced excessive GWG. Among the newborns, 24.4 % were classified as LGA. Univariate analysis showed an association of family income, GWG, pre-pregnancy BMI and excessive GWG with LGA newborns. Smoking before and during pregnancy was associated with a decreased likelihood of giving birth to an LGA newborn compared to mothers who did not smoke. After adjustment for confounding variables, age at birth of first child, GWG, HbA1c and pre-pregnancy weight-GWG were significant and independent determinants of giving birth to an LGA newborn. Mothers with pre-pregnancy overweight and excessive GWG were more likely to deliver an LGA newborn (OR 2.54, P < 0.05) compared to mothers who were normal weight and experienced adequate GWG. Conclusions for Practice Age at first birth of child, GWG, HbA1c and pre-pregnancy overweight combined with excessive GWG are independent determinants of LGA newborns. The results of this study suggest that both primary prevention of overweight in women of childbearing age and management of GWG may be important strategies to reduce the number of LGA newborns and, consequently, the long-term public health burden of obesity.

[Telephone monitoring service for pregnant women and impact on prevalence of prematurity and associated risk factors in Piracicaba, São Paulo State, Brazil]

This study aims to assess the impact of a telephone monitoring service on prevalence of prematurity and to analyze associated risk factors using data on 2,739 pregnant women. Estimation was based on hierarchical multiple logistic regression, with p ≤ 0.05 for variables to remain in the model. Prevalence of preterm birth was 8.34% in monitored pregnant women and 10.18% in unmonitored women (p = 0.0058). Prevalence of preterm birth was inversely proportional to the number of monitoring calls (p < 0.0001). Variables associated with prematurity were maternal age < 19 years, history of death of two or more children, multiple pregnancy, diabetes, hypertension, fewer monitoring calls, extended standing or lifting heavy weights at work, smoking, fewer prenatal visits, no ultrasound examination, gestational diabetes, multiple pregnancy, and fetal abnormality. This low-cost strategy proved effective for reducing the preterm birth rate.

Infant mortality in a very low birth weight cohort from a public hospital in Rio de Janeiro, RJ, Brazil

OBJECTIVES: to evaluate infant mortality in very low birth weight newborns from a public hospital in Rio de Janeiro, Brazil (2002-2006). METHODS: a retrospective cohort study was performed using the probabilistic linkage method to identify infant mortality. Mortality proportions were calculated according to birth weight intervals and period of death. The Kaplan-Meier method was used to estimate overall cumulative survival probability. The association between maternal schooling and survival of very low birth weight infants was evaluated by means of Cox proportional hazard models adjusted for: prenatal care, birth weight, and gestational age. RESULTS: the study included 782 very low birth weight newborns. Of these, (28.6%) died before one year of age. Neonatal mortality was 19.5%, and earlyneonatal mortality was 14.9%. Mortality was highest in the lowest weight group (71.6%). Newborns whose mothers had less than four years of schooling had 2.5 times higher risk of death than those whose mothers had eight years of schooling or more, even after adjusting for intermediate factors. CONCLUSIONS: the results showed higher mortality among very low birth weight infants. Low schooling was an independent predictor of infant death in this low-income population sample.

Óbitos maternos em uma maternidade pública de Fortaleza: um estudo epidemiológico

O objetivo do estudo foi analisar os óbitos maternos ocorridos em uma Maternidade Pública de Fortaleza-CE e identificar a existência de associações entre o momento do óbito e as causas do óbito. Foram revisados prontuários, declarações de óbito e fichas de notificação referentes aos 96 óbitos maternos ocorridos entre 2000 e 2008. O tipo de parto mais prevalente foi o cesáreo (45;46,8%) e as causas de óbitos mais evidenciadas foram: síndrome hipertensiva (27;28,1%); infecção (17;17,7%); e hemorragia (16;16,7%). Houve associação estatística significante entre: cesariana e as causas de óbito síndrome hipertensiva e infecção (x²:14,40, p:0,00; x²:4,02, p:0,04); mortes ocorridas no puerpério e síndrome hipertensiva (x²:6,13, p:0,01) e infecção (x²:7,65, p:0,00). A caracterização desses óbitos auxilia no reconhecimento dos grupos de risco e na elaboração de medidas preventivas.

Risk factors for low birth weight in Botucatu city, SP state, Brazil: a study conducted in the public health system from 2004 to 2008

BACKGROUND

Low birth weight (LBW), defined as birth weight less than 2500 g, has a complex etiology and may be a result of premature interruption of pregnancy or intrauterine growth restriction. The objective of this study was to provide information on determinants of LBW and contribute to the understanding of the problem in Brazil.

METHODS

A case-control study was conducted in Botucatu city, SP state, Brazil. The study population consisted of 2 groups with 860 newborns in each group as follows: low weight newborns (LWNB) and a control group (weight ≥ 2500 g). Secondary data from 2004 to 2008 were collected using the Live Birth Certificate (LBC) and records from medical charts of pregnant women in Basic Health Units (BHU) and in the Public University Hospital (UH). Variables were as follows: maternal socio-demographic characteristics, pregnancy and birth conditions including quality of prenatal care according to 3 criteria. They were based on parameters established by the Ministry of Health (MH), one of them, the modified Kessner Index. The multivariable analysis by logistic regression was used to evaluate the association between variables and LBW.

RESULTS

According to the analysis, the factors associated with LBW were as follows: prematurity (OR = 56.98, 95% CI 29.52-109.95), twin pregnancy (OR = 20.00, 95% CI 6.25-100.00), maternal smoking (OR = 2.12, 95% CI 1.33-3.45), maternal malnourishment (OR = 2.30, 95% CI 1.08-5.00), maternal obesity (OR = 2.30, 95% IC 1.18-4.48), weight gain during pregnancy less than 5 kg (OR = 2.63, 95% CI 1.35-5.00) and weight gain during pregnancy more than 15 kg (OR = 2.26, 95% CI 1.16-4.41). Adequacy of prenatal care visits adjusted to gestational age was less frequent in the LBW group than in the control group (68.7% vs. 80.5%, x2 p < 0.001). According to the modified Kessner Index, 64.4% of prenatal visits in the LWNB group were adequate.

CONCLUSION

LWNB are a quite heterogeneous group of infants concerning their determinants and prevention actions against LBW and the follow-up of these infants have also been very complex. Therefore, improvement in the quality of care provided should be given priority through concrete actions for prevention of LBW.

Características do apoio social associados à prematuridade em uma população de puérperas de baixa renda

Trata-se de um estudo caso-controle que teve como objetivo investigar a associação entre prematuridade e o nível de apoio social, segundo variáveis socioeconômicas, demográficas e relacionadas à saúde e à assistência, em uma população de puérperas de baixa renda atendidas em um hospital público do município do Rio de Janeiro. Foram entrevistados 108 casos e 228 controles, em um total 336 mulheres. A idade das mulheres variou entre 14 e 45 anos. A média da idade foi de 25,8 anos (desvio-padrão: 6,9) para os casos e de 24,9 (desvio-padrão 6,5) para os controles. Quanto à raça/etnia autorreferida, 77,1% denominaram-se não brancas. Da amostra, 68,8% iniciaram o pré-natal antes do terceiro trimestre gestacional. O número de consultas durante o pré-natal, ocorrência de ameaça de parto prematuro e história de prematuridade anterior mostraram-se associados ao nível de apoio, calculado a partir do escore total das dimensões do apoio social.

Fatores de risco para baixo peso ao nascer em maternidades públicas: um estudo transversal

O baixo peso ao nascer é apontado como o fator de maior influência na determinação da morbimortalidade neonatal, podendo estar associado a baixos níveis de desenvolvimento socioeconômico e de assistência materno-infantil. Trata-se de uma pesquisa quantitativa que objetivou descrever os fatores de risco para baixo peso ao nascimento de recém nascidos nas maternidades públicas do município de Santa Maria, Rio Grande do Sul. Os dados quantitativos foram submetidos à análise estatística descritiva. Os resultados apontaram como principais fatores de risco a prematuridade, a renda familiar inferior a dois salários mínimos, a nuliparidade e a multiparidade, a ocorrência de aborto prévio, o parto cirúrgico, as infecções, a pré-eclâmpsia e a história prévia de outros filhos de baixo peso. Recomenda-se o investimento na qualificação da assistência pré-natal, visto que muitos destes fatores de risco podem ser evitados ou minimizados por meio de uma atenção pré-natal de qualidade.

[Maternal mortality in the state of Paraíba-Brazil: association between variables]

Maternal mortality has been established as one of the priority problems of public health, directly affecting women in the pregnant puerperal cycle and belonging to underprivileged social classes. Considering this situation, the aim of the present study was to identify associations between the race of women living in the state of Paraíba and age, educational level and type of death of women who died of maternal death in the period 2000 to 2004. This cross-sectional study used as a source of data declarations of 109 maternal deaths. Bivariate and multivariate statistical analyses were performed to evaluate the association between variables using multiple logistic regression. The odds ratio to investigate the association between variables was calculated. It was observed that there was no statistical significance between race and age variables or with educational level, but there was significant evidence that nonwhite women from Paraíba were more likely to die from direct obstetric death than white women, (OR = 3.55; IC: 1.20-10.5). The results showed that the risk of maternal mortality in Paraiba was higher among non-white women, revealing an important expression of social inequality.

Experiência da gravidez após os 35 anos de mulheres com baixa renda

Objetivou-se apreender as representações sociais sobre gravidez após os 35 anos a partir de mulheres com baixa renda que vivenciaram essa experiência. A abordagem qualitativa foi empregada com base na Teoria das Representações Sociais. Foram realizadas entrevistas semiestruturadas com 25 gestantes usuárias de um serviço público de referência do interior paulista. Os dados foram sistematizados pela técnica do Discurso do Sujeito Coletivo. Verificou-se que a opção pela gravidez tardia se atrela ao desejo da mulher de consolidar suas relações em novas uniões conjugais, à estabilidade financeira e à maturidade do casal. As mulheres representam esta experiência como positiva, se houver planejamento prévio, envolvimento do companheiro e se for bem aceita pela família, após sua constatação. Sem a satisfação destas condições, as representações revestem-se de sentimentos negativos ligados a dor, sofrimento e morte. As conclusões deste estudo enfatizam a importância de os serviços públicos de saúde considerarem estes aspectos.