scholarly journals Mean birth weight among term newborns: direction, magnitude and associated factors

2020 ◽  
Vol 36 (4) ◽  
Author(s):  
Antônio Augusto Moura da Silva ◽  
Carolina Abreu de Carvalho ◽  
Heloísa Bettiol ◽  
Marcelo Z. Goldani ◽  
Fernando Lamy Filho ◽  
...  
Keyword(s):  
Birth Weight ◽  
Population Based ◽  
High School Education ◽  
Rio Grande Do Sul ◽  
Live Births ◽  
Factors Associated ◽  
Paulo State ◽  
Random Samples ◽  
Term Newborns ◽  
Second Period

Abstract: A trend towards increasing birth weight has been shown, but factors that explain these trends have not been elucidated. The objectives of this study were to evaluate changes in mean birth weight of term newborns and to identify factors associated with them. All cohorts are population-based studies in which random samples of births (Ribeirão Preto, São Paulo State in 1978/1979, 1994 and 2010; Pelotas, Rio Grande do Sul State in 1982, 1993 and 2004; and São Luís, Maranhão State in 1997/1998 and 2010, Brazil). A total of 32,147 full-term, singleton live births were included. Mean birth weight reduced in the first study period (-89.1g in Ribeirão Preto from 1978/1979 to 1994, and -27.7g in Pelotas from 1982 to 1993) and increased +30.2g in Ribeirão Preto from 1994 to 2010 and +24.7g in São Luís from 1997 to 2010. In the first period, in Ribeirão Preto, mean birth weight reduction was steeper among mothers with high school education and among those born 39-41 weeks. In the second period, the increase in mean birth weight was steeper among mothers with low schooling in Ribeirão Preto and São Luís, females and those born 37-38 weeks in Ribeirão Preto and cesarean section in São Luís. Birth weight decreased in the first study period then increased thereafter. The variables that seem to have been able to explain these changes varied over time.

scholarly journals Factors associated to maternal and child's health in Rio Grande do Sul, Brazil

2017 ◽  
Vol 17 (3) ◽  
pp. 527-537 ◽  
Author(s):  
Franciele Mattei ◽  
Ioná Carreno
Keyword(s):  
Birth Weight ◽  
Ecological Study ◽  
Rio Grande ◽  
Spearman Correlation ◽  
Rio Grande Do Sul ◽  
Regional Health ◽  
Cross Sectional ◽  
Level Of Education ◽  
Live Births ◽  
Factors Associated

Abstract Objectives: to analyze the factors associated to maternal and child's health from the Live Births Information System (Sinasc) in Rio Grande do Sul, 2012. Methods: a cross-sectional ecological study with analysis on Sinasc variables from 19 Regional Health Coordinations in Rio Grande do Sul. The variables occurrence frequencies were calculated and analyzed by Spearman correlation. Results: we observed that a higher maternal level of education, the presence of a partner and the adequate number of prenatal consultations reduced the frequency of vaginal delivery, as for the proportion of cesarean section, it was 62%. The frequency of low schooling was associated to prematurity (rho = 0.521, p=0.022) and low birth weight (rho = 0.542, p=0.016). The low prenatal coverage correlated positively with the Apgar score ≤ 7 in the 5th minute (rho = 0.467; p=0.044) and negatively with adequate birth weight (rho = -0.500; p=0.029). Conclusions: this study allows to identify factors associated to maternal and child's health contributing information to the development of actions that qualifies pregnant women's healthcare.

scholarly journals Prevalence and factors associated with low birth weight in full-term newborns

Rev Rene ◽  
2021 ◽  
Vol 22 ◽  
pp. e68012
Author(s):  
Rubia Mariana de Souza Santos ◽  
Sonia Silva Marcon ◽  
Verônica Francisqueti Marquete ◽  
Aroldo Gavioli ◽  
Ana Maria Nunes da Silva ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Full Term ◽  
Multiple Logistic Regression ◽  
Live Births ◽  
Factors Associated ◽  
Low Weight ◽  
Term Newborns ◽  
Male Sex ◽  
Multiple Analysis

Objective: to estimate the prevalence and verify the factors associated with low birth weight in full-term newborns. Methods: this is a retrospective study conducted with 24,744 newborns. Data were retrieved from the Sistema de Informação sobre Nascidos Vivos (Information System on Live Births). For the analysis, multiple logistic regression was used using the hierarchical model with maternal, gestational, and care variables. Results: the prevalence of low birth weight was 2.4%, with 51.0% of cases in male newborns, 73.7% in women aged 20-34 years; 56.5% were multiparous and 95.0% had eight years of education or more. In the multiple analysis, the association of low weight with the number of prenatal consultations, newborn’s birth order, and sex were observed. Conclusion: the factors associated with low birth weight in full-term newborns were male sex, multiparity, and less than seven prenatal consultations.

scholarly journals Factors associated with low birth weight at term: a population-based linkage study of the 100 million Brazilian cohort

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Ila R. Falcão ◽  
Rita de Cássia Ribeiro-Silva ◽  
Marcia F. de Almeida ◽  
Rosemeire L. Fiaccone ◽  
Aline dos S. Rocha ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Population Based ◽  
Linkage Study ◽  
Live Births ◽  
Factors Associated ◽  
The North ◽  
Socioeconomic Data ◽  
Brazilian Cohort ◽  
Brazilian Populations

Abstract Background Factors associated with low birth weight at term (TLBW), a proxy for intrauterine growth restriction (IUGR), are not well-elucidated in socioeconomically vulnerable populations. This study aimed to identify the factors associated with TLBW in impoverished Brazilian women. Methods Records in the 100 Million Brazilian Cohort database were linked to those in the National System of Information on Live Births (SINASC) to obtain obstetric, maternal, birth and socioeconomic data between 2001 and 2015. Multivariate logistic regression was performed to investigate associations between variables of exposure and TLBW. Results Of 8,768,930 term live births analyzed, 3.7% presented TLBW. The highest odds of TLBW were associated with female newborns (OR: 1.49; 95% CI: 1.47–1.50), whose mothers were black (OR: 1.20; 95% CI: 1.18–1.22), had a low educational level (OR: 1.57; 95% CI: 1.53–1.62), were aged ≥35 years (OR: 1.44; 95% CI: 1.43–1.46), had a low number of prenatal care visits (OR: 2.48; 95% CI: 2.42–2.54) and were primiparous (OR: 1.62; 95% CI: 1.60–1.64). Lower odds of TLBW were found among infants whose mothers lived in the North, Northeast and Center-West regions of Brazil compared to those in the South. Conclusion Multiple aspects were associated with TLBW, highlighting the need to comprehensively examine the mechanisms underlying these factors, especially in more vulnerable Brazilian populations, in order to contribute to the elaboration of health policies and promote better conditions of life for poor and extremely poor mothers and children.

scholarly journals Comparing regional neonatal mortality rates: the influence of registration of births as live born for birth weight <500 g in Taiwan

2019 ◽  
Vol 3 (1) ◽  
pp. e000526
Author(s):  
Liang-Yi Wang ◽  
Yu-Shan Chang ◽  
Fu-Wen Liang ◽  
Yung-Chieh Lin ◽  
Yuh-Jyh Lin ◽  
...  
Keyword(s):  
Birth Weight ◽  
Neonatal Mortality ◽  
Ecological Study ◽  
Population Based ◽  
Cross Sectional ◽  
Neonatal Deaths ◽  
Live Births ◽  
Taipei City ◽  
The Impact ◽  
The City

ObjectiveTo investigate regional variation in the registration of births (still+live) as live born for birth weight <500 g and the impact on the city/county ranking of neonatal mortality rate (NMR) in Taiwan.DesignPopulation-based cross-sectional ecological study.Setting20 cities/counties in Taiwan.ParticipantsRegistered births for birth weight <500 g and neonatal deaths in 2015–2016.Main outcome measuresCity/county percentage of births <500 g registered as live born and ranking of city/county NMR (deaths per 1000 live births) including and excluding live births <500 g.ResultsThe percentage of births <500 g registered as live born ranged from 0% in Keelung City (0/26) and Penghu County (0/4) to 20% in Taipei City (112/558), 24% in Hsinchu County (5/21) and 28% in Hualien County (9/32). The change in city/county ranking of NMR from including to excluding live births <500 g was most prominent in Taipei City (from the 15th to the 1st) followed by Kaohsiung City (from the 18th to the 14th).ConclusionsThe city/county NMR in Taiwan is influenced by variation in the registration of live born for births with uncertain viability. We recommend presenting city/county NMR using both criteria (with or without minimum threshold of gestation period or birth weight) for better interpretation of the findings of comparisons of city/county NMR.

scholarly journals Fatores associados ao baixo peso ao nascer em crianças do Rio Grande do Sul

2020 ◽  
Vol 42 ◽  
pp. e43
Author(s):  
Angelica Peripolli ◽  
Anaelena Bragança de Moraes ◽  
Luciane Flores Jacobi ◽  
Roselaine Ruviaro Zanini
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Strong Association ◽  
Significant Risk ◽  
Rio Grande ◽  
Vulnerable Groups ◽  
Protective Effects ◽  
Rio Grande Do Sul ◽  
Live Births ◽  
Using Data

In this study were identified and quantified the risk factors associated to live births with low birth weight in Rio Grande do Sul, in 2011 using data from the Information System on Live Births. The prevalence of low birth weight (LBW) was 8.1%. By adjusting logistic regression, two models were proposed. For the first one, the predictors significant risk variables at 5% were: mothers aged 35 or more; nulliparous; with elementary school II or high school; legally separated or divorced; mothers who did not receive prenatal care; birth that occurred outside the hospital; prematurity; female and who had congenital anomaly. The protective effects variables were teenage mothers and who did not work outside the home. The type of delivery was included in the second model proposed, which was more appropriate to estimate the probability of a live birth born underweight. It was possible to conclude that it is important to consider effective actions to vulnerable groups aiming to reduce LBW rates, examining the strong association with infant mortality rates.

scholarly journals MATERNAL AND CHILD RISK FACTORS ASSOCIATED WITH NEONATAL MORTALITY

2016 ◽  
Vol 25 (4) ◽  
Author(s):  
Maria Aparecida Munhoz Gaiva ◽  
Elizabeth Fujimori ◽  
Ana Paula Sayuri Sato
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Neonatal Mortality ◽  
Apgar Score ◽  
Cross Sectional Study ◽  
Mortality Data ◽  
Cross Sectional ◽  
Live Births ◽  
Factors Associated

ABSTRACT This was a cross-sectional study that investigated maternal and child factors associated with neonatal mortality. Data was obtained from the Live Births and Mortality Information Systems integrated by linkage. A total of 9,349 live births and 78 deaths in the neonatal period, which occurred in 2010 in Cuiabá-MT were analyzed. Univariate and multivariate analyzes were performed. In the multiple logistic regression, neonatal mortality was associated with: maternal age less than 20 years; prematurity; low birth weight; Apgar score less than seven at 1 and 5 minutes; and presence of congenital anomaly. The results highlight the need to improve the quality of prenatal care in order to prevent low birth weight and prematurity. The association between neonatal death and low Apgar score at 1 and 5 minutes indicates the importance of investments in delivery care.

scholarly journals Faktor-Faktor Risiko Terjadinya Berat Bayi Lahir Rendah

2019 ◽  
Vol 6 (2) ◽  
pp. 184-194
Author(s):  
Lydia Febrina ◽  
Triana Sri Herdjanti ◽  
Siti Nikmah
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Case Control Study ◽  
Case Control ◽  
Live Births ◽  
Intrauterine Growth ◽  
Factors Associated ◽  
Central Java ◽  
Control Study ◽  
Central Java Province

Low Birth Weight (LBW) is the proportion of live births weighing less than 2,500 grams and 20 times the chance of dying in infancy. LBW is the result of premature birth (<37 weeks' gestation) or impaired intrauterine growth. Neonatal mortality is one of the indicators determining the health and welfare of children. IMR in Banjarnegara Regency in 2015 was 13.23 per 1,000 live births which in absolute terms still ranked highest in Central Java Province. The formulation of the problem is risk factors of low birth weight  at Karang Kobar Health Center in Banjarnegara Regency in 2018. This research is a descriptive analytic study using case control study design. The research sample was taken from the total number of LBW in January to December 2017. Data were analyzed univariate and bivariate. The results of the study, the factors associated with the incidence of LBW are the factors of maternal age during pregnancy, gestational age, anemia, and nutrition pregnant women.

The Relationship Between Birthweight Discordance and Perinatal Mortality of One of the Twins in a Twin Pair

2006 ◽  
Vol 9 (2) ◽  
pp. 292-297 ◽  
Author(s):  
Noriko Kato ◽  
Tomohiro Matsuda
Keyword(s):  
Birth Weight ◽  
Perinatal Mortality ◽  
Low Birthweight ◽  
Twin Pair ◽  
Population Based ◽  
Cumulative Frequency ◽  
Live Births ◽  
Using Data ◽  
Lower Birthweight ◽  
The Relationship

AbstractThis study aimed to evaluate the prevalence of birth-weight discordance among twins, to determine the risk cut-off point for birthweight discordance, and to clarify whether perinatal deaths are aggravated by birthweight discordance or by low birthweight itself. A population-based analysis of all twins born between 1995 and 1999 in Japan was conducted using data collected from national birth, death and stillbirth certificates. Birthweight discordance was determined as: higher birthweight minus lower birthweight divided by higher birthweight multiplied by 100. Among twins with a birthweight discordance of more than 15%, the fetal and perinatal mortality rate was higher than that of twins with a discordance of less than 15%. Ninety per cent of the relative cumulative frequency of twin live-births were within 25% of the birthweight discordance. Logistic regression analysis showed that the stillbirth of at least one of the twins is associated with the birthweight of the larger twin and birthweight discordance. It also showed that the stillbirth of both twins in the twin pair is associated with the birth-weight of larger twins and the gestational weeks. It was clarified that birthweight discordance was associated with the stillbirth of only one twin in the twin pair, and the stillbirth of both twins in the twin pair was associated with low birthweight itself.

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