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

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.

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Risk factors for low birth weight in Rio Grande do Sul State, Brazil: classical and multilevel analysis

Cadernos de Saúde Pública ◽

10.1590/s0102-311x2012001400008 ◽

2012 ◽

Vol 28 (12) ◽

pp. 2293-2305 ◽

Cited By ~ 14

Author(s):

Anaelena Bragança de Moraes ◽

Roselaine Ruviaro Zanini ◽

João Riboldi ◽

Elsa Regina Justo Giugliani

Keyword(s):

Risk Factors ◽

Birth Weight ◽

Low Birth Weight ◽

Multilevel Models ◽

Rio Grande ◽

Rio Grande Do Sul ◽

Individual Level ◽

Live Births ◽

Increased Risk ◽

The Individual

The objective of this study was to identify risk factors for low birth weight in singleton live born infants in Rio Grande do Sul State, Brazil, in 2003, based on data from the Information System on Live Births. The study used both classical multivariate and multilevel logistic regression. Risk factors were evaluated at two levels: individual (live births) and contextual (micro-regions). At the individual level the two models showed a significant association between low birth weight and prematurity, number of prenatal visits, congenital anomalies, place of delivery, parity, sex, maternal age, maternal occupation, marital status, schooling, and type of delivery. In the multilevel models, the greater the urbanization of the micro-region, the higher the risk of low birth weight, while in less urbanized micro-regions, single mothers had an increased risk of low birth considering all live births. Low birth weight varied according to micro-region and was associated with individual and contextual characteristics. Although most of the variation in low birth weight occurred at the individual level, the multilevel model identified an important risk factor in the contextual level.

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

Revista Brasileira de Saúde Materno Infantil ◽

10.1590/1806-93042017000300007 ◽

2017 ◽

Vol 17 (3) ◽

pp. 527-537 ◽

Cited By ~ 1

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.

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Validity of maternal report on birth weight 11 years after delivery: the 1993 Pelotas Birth Cohort Study, Rio Grande do Sul State, Brazil

Cadernos de Saúde Pública ◽

10.1590/s0102-311x2007001000017 ◽

2007 ◽

Vol 23 (10) ◽

pp. 2421-2427 ◽

Cited By ~ 10

Author(s):

Cora L. P. Araújo ◽

Carmem L. C. Dutra ◽

Pedro C. Hallal

Keyword(s):

Cohort Study ◽

Birth Weight ◽

Birth Cohort ◽

Rio Grande ◽

Birth Cohort Study ◽

Rio Grande Do Sul ◽

Long Term Effects ◽

Maternal Report ◽

Short And Long Term ◽

Using Data

Birth weight has short and long-term effects on health. Some studies have used retrospective data on birth weight, reported by the subject or by the parents. This paper compares data on birth weight measured by the research team in 1993 with birth weight reported by the mother in 2004-2005, using data from the 1993 Pelotas Birth Cohort Study, Rio Grande do Sul State, Brazil. We also evaluate the role of misclassification when exploring the effect of birth weight on a given outcome. Mean difference between the two variables was 20g (SD = 288.3). Agreement for detecting low birth weight was 95.2% in the sample as a whole (kappa = 0.73), but was lower among low-schooling mothers. Mothers of children weighing less than 3,500g at birth tended to overestimate the child's birth weight. Inversely, mothers of heavier children tended to underestimate the values. One out of four mothers reported a difference of at least 200g in birth weight as compared to that measured in 1993. Use of reported birth weight diluted the magnitude of the association with body mass index at 11 years in comparison with measured birth weight. Reported birth weight should be used with great caution, if at all.

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Handling Associated with Drenching Does Not Impact Survival and General Health of Low Birth Weight Piglets

Animals ◽

10.3390/ani11020404 ◽

2021 ◽

Vol 11 (2) ◽

pp. 404

Author(s):

Kevin Van Tichelen ◽

Sara Prims ◽

Miriam Ayuso ◽

Céline Van Kerschaver ◽

Mario Vandaele ◽

...

Keyword(s):

Birth Weight ◽

Low Birth Weight ◽

Significant Risk ◽

Skin Lesions ◽

Additional Stress ◽

Bioactive Substances ◽

Blood Samples ◽

Panel Test ◽

Esterified Fatty Acids ◽

The Mean

The increase in litter sizes in recent years has resulted in more low birth weight (LBW) piglets, accompanied by a higher mortality. A potential intervention to overcome this is drenching bioactive substances. However, if the act of drenching provokes additional stress in LBW piglets, it might counteract the supplement’s effect and be detrimental for the piglet’s survival. To study the effect of the drenching act, piglets from 67 sows were weighed within 4 h after birth. The mean litter birth weight (MLBW) and standard deviation (SD) were calculated. LBW piglets (n = 76) were defined as weighing between (MLBW-1*SD) and (MLBW-2.5*SD). They were randomly allocated to two treatments: “sham” (conducting the act of drenching by inserting an empty 2.5 mL syringe in the mouth during 20 s, once a day, d1 till d7; n = 37) or “no treatment” (no handling; n = 39). On day 1, 3, 9, 24 and 38, piglets were weighed and scored for skin lesions. Blood samples were collected on day 9 and 38 and analyzed to determine glucose, non-esterified fatty acids (NEFA), urea, immunoglobulin G (IgG), insulin-like growth factor 1 (IGF-1) and a standard blood panel test. There was no difference between sham drenched and untreated piglets regarding any of the parameters. In conclusion, this study showed that drenching does not impose a significant risk to LBW piglets and can be applied safely during the first 7 days after birth.

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Pregnancy Outcome during the First COVID 19 Lockdown in Vienna, Austria

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18073782 ◽

2021 ◽

Vol 18 (7) ◽

pp. 3782

Author(s):

Sylvia Kirchengast ◽

Beda Hartmann

Keyword(s):

Birth Weight ◽

Preterm Birth ◽

Low Birth Weight ◽

Pregnancy Outcome ◽

Gestational Age ◽

Very Low Birth Weight ◽

Extremely Low Birth Weight ◽

Negative Effects ◽

Gestational Length ◽

Live Births

The COVID 19 pandemic represents a major stress factor for non-infected pregnant women. Although maternal stress during pregnancy increases the risk of preterm birth and intrauterine growth restriction, an increasing number of studies yielded no negative effects of COVID 19 lockdowns on pregnancy outcome. The present study focused on pregnancy outcome during the first COVID 19 lockdown phase in Austria. In particular, it was hypothesized that the national lockdown had no negative effects on birth weight, low birth weight rate and preterm birth rate. In a retrospective medical record-based single center study, the outcome of 669 singleton live births in Vienna Austria during the lockdown phase between March and July 2020 was compared with the pregnancy outcome of 277 live births at the same hospital during the pre-lockdown months of January and February 2020 and, in addition, with the outcome of 28,807 live births between 2005 and 2019. The rate of very low gestational age was significantly lower during the lockdown phase than during the pre-lockdown phase. The rate of low gestational age, however, was slightly higher during the lockdown phase. Mean birth weight was significantly higher during the lockdown phase; the rates of low birth weight, very low birth weight and extremely low birth weight were significantly lower during the lockdown phase. In contrast, maternal gestational weight gain was significantly higher during the lockdown phase. The stressful lockdown phase in Austria seems to have no negative affect on gestational length and newborn weight among non-infected mothers.

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Maternal smoking during pregnancy and socioeconomic factors as predictors of low birth weight in term pregnancies in Nis

Vojnosanitetski pregled ◽

10.2298/vsp1002145s ◽

2010 ◽

Vol 67 (2) ◽

pp. 145-150 ◽

Cited By ~ 7

Author(s):

Miodrag Stojanovic ◽

Vladmila Bojanic ◽

Dijana Musovic ◽

Zoran Milosevic ◽

Dusica Stojanovic ◽

...

Keyword(s):

Risk Factors ◽

Birth Weight ◽

Low Birth Weight ◽

Socioeconomic Factors ◽

Great Influence ◽

Significant Risk ◽

Education Level ◽

Smoking During Pregnancy ◽

Children Health ◽

Maternal Smoking During Pregnancy

Background/Aim. Low birth weight (LBW) is a result of preterm birth or intrauterine growth retardation, and in both cases is the strongest single factor associated with perinatal and neonatal mortality. It is considered that socioeconomic factors, as well as mothers bad habits, play the most significant role in the development of LBW, which explains notable number of researches focused on this particular problem. The aim of this study was to characterize socioeconomic factors, as well as smoking habits of the mothers, and their connection with LBW. Methods. The questionnaire was carried out among mothers of 2 years old children (n = 956), born after 37 gestational weeks. The characteristics of mothers who had children with LBW, defined as < 2 500 g, (n = 50), were matched with the characteristics of mothers who had children ? 2 500 g, (n = 906). For defining risk factors, and protective factors as well, we used univariant and multivariant logistic modeles. Results. As significant risk factors for LBW in an univariant model we had education level of the mothers, smoking during pregnancy, smoking before pregnancy, the number of daily cigarettes, the number of cigarettes used during pregnancy, paternal earnings and socioeconomic factors. In a multivariant model the most significant factors were socioeconomic factors, education level of the mothers, paternal earnings and mothers smoking during pregnancy. Conclusion. Smoking during pregnancy and socioeconomic factors have great influence on LBW. Future studies should be carried out in different social groups, with the intention to define their influence on LBW and reproduction, as well. This should be the proper way of adequate health breeding planning for giving up smoking, the prevention of bad habits and melioration of mothers and children health, as the most vulnerable population.

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Low Birth Weight, Vital Records, and Infant Mortality

PEDIATRICS ◽

10.1542/peds.78.6.1143 ◽

1986 ◽

Vol 78 (6) ◽

pp. 1143-1145

Author(s):

MYRON E. WEGMAN

Keyword(s):

Birth Weight ◽

Infant Mortality ◽

Low Birth Weight ◽

Very Low Birth Weight ◽

The United States ◽

Low Birth Weight Infants ◽

Neonatal Deaths ◽

Live Births ◽

Order Of Magnitude ◽

Almost All

About one tenth of all infant deaths occur in babies weighing less than 500 g at birth, almost all of whom die very shortly thereafter. In 1983, when the United States reported 3,638,933 live births, 4,368 of them were less than 500 g; that year there were 26,507 neonatal deaths. This means that slightly more than 0.1% of all live births contributed to 17% of neonatal mortality. Given this order of magnitude, any change in the numbers relating to these tiny babies can have a disproportionate influence on reported infant mortality and on interstate comparisons. Two questions promptly arise. How accurate and meaningful are the data regarding babies born weighing less than 500 g? What can be done to decrease the deaths in this category? Wilson et al1 call attention to how the number of very low birth weight infants reported by a state may be affected by the state's definition of a live birth.

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Analysis of selected perinatological indicators in the Slovak Republic in the years 2007–2018

Česká gynekologie ◽

10.48095/cccg2021102 ◽

2021 ◽

Vol 86 (2) ◽

pp. 102-109

Author(s):

Miroslav Korbeľ ◽

◽

Pavel Kaščák ◽

zuzana Nižňanská

Keyword(s):

Birth Weight ◽

Mortality Rate ◽

Low Birth Weight ◽

Perinatal Mortality ◽

Total Fertility Rate ◽

Very Low Birth Weight ◽

Slovak Republic ◽

In Utero ◽

Fertility Rate ◽

Live Births

Overview Objective: Analysis of perinatal mortality in the Slovak Republic during the years 2007–2018. Methods: Analysis of prospectively collected selected perinatal data in the years 2007–2018. Results: In the year 2007, there were 63 obstetrics units, 51,146 deliveries and that of live births 51,650 in the Slovak Republic. The number of obstetrics units decreased to 51 in the years 2018, the total number of deliveries increased to 57,085 and that of live births increased to 57,773. The total fertility rate in the years 2007–2018 increased from 1.27 to 1.54. The preterm deliveries rate increased from 7.3% in the year 2007 to 8.5% in the year 2010 and decreased to 7% in the year 2018. The perinatal mortality rate decreased from 6.2 in the year 2007 to 4.4 in the year 2017, increased again in the years 2018 to 5.0 and according to the criteria of WHO (World Health Organization) to 6.6 per 1,000 still- and live-births. During the years 2007–2018 at perinatal mortality stillbirth participate with 65%, low birth weight with 63% and severe congenital anomalies with 19%. Transport in utero to perinatological centers in the years 2007–2018 has decreased from 57 to 56% for infants 1,000–1,499 g and from 75 to 73% for infants below 1,000 g. Conclusion: In the year 2017, perinatology in the Slovak Republic reached the best result in the perinatal mortality rate – 4.4‰ (0.44%), but has increased to over 5‰ next year. To further reduce perinatal mortality in the Slovak Republic, it is necessary to improve the prenatal diagnosis of severe congenital abnormalities, transport in utero of very low birth weight fetuses, centralization of high-risk pregnancies, obstetric personnel and material-technical equipment of obstetricians and neonatal intensive care units. Keywords: perinatal mortality – preterm delivery – multiple pregnancy – low birth weight – very low birth weight – total fertility rate

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Severe anemia and adverse pregnancy outcome in a tertiary care hospital in North India

International Journal of Reproduction Contraception Obstetrics and Gynecology ◽

10.18203/2320-1770.ijrcog20180159 ◽

2018 ◽

Vol 7 (2) ◽

pp. 483

Author(s):

Premlata Yadav

Keyword(s):

Birth Weight ◽

Low Birth Weight ◽

Peripheral Blood ◽

Tertiary Care ◽

Significant Risk ◽

North India ◽

Deficiency Anemia ◽

Care Hospital ◽

Severe Anemia ◽

In Pregnancy

Background: Anaemia is commonest medical disorder in pregnancy with 88% prevalence in India mainly due to ignorance, poverty and gender bias. 40-60% of maternal deaths in developing countries. According to the recent standard laid down by WHO anemia is present when the hemoglobin (Hb) concentration in the peripheral blood is less than 11 gm/dl. The most common cause of anemia in pregnancy is iron deficiency. Anemia is diagnosed by estimating the hemoglobin concentration and examining a peripheral blood smear for the characteristic red blood cell changes. The aim of the study was to determine the association between severe anemia, maternal and perinatal complications.Methods: Case control study was done in department of Obstetrics and Gynecology, Rajendra Institute of Medical Sciences Ranchi, India from February 2016 to July 2016. 100 pregnant women, admitted for delivery and having severe anemia were studied and compared with 100 non-anaemic women of similar demographic features. Maternal and perinatal complications were observed. Pearson, chi-square and Fischer exact tests were used to calculate significance of results.Results: Of the severely anaemic mothers, 36% babies were low birth weight (p=0.042) and 20% were small for gestational age (p = 0.026), as compared to 18% and 10% of controls, respectively.Conclusions: Severe maternal anemia carries significant risk of hemorrhage and infection in the mother. It is also associated with preterm birth, low birth weight.

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Prevalence and Determinants of Low Birth Weight in Ethiopia: A Systematic Review and Meta-Analysis

Advances in Public Health ◽

10.1155/2020/7589483 ◽

2020 ◽

Vol 2020 ◽

pp. 1-13

Author(s):

Nuradin Abusha Katiso ◽

Getachew Mullu Kassa ◽

Gedefaw Abeje Fekadu ◽

Abadi Kidanemariam Berhe ◽

Achenef Asmamaw Muche

Keyword(s):

Birth Weight ◽

Prenatal Care ◽

Low Birth Weight ◽

Rural Areas ◽

Meta Analysis ◽

Significant Risk ◽

Significant Risk Factor ◽

Pooled Prevalence ◽

Unpublished Studies ◽

Meta Analyses

Introduction. Low birth weight (LBW) is the most significant risk factor for neonatal and infant mortality. It is one of the major public health problems in developing countries. Although there are various studies on low birth weight, findings were inconsistent and inconclusive. Therefore, this study was conducted to estimate the national-pooled prevalence of low birth weight and its associated factors in Ethiopia. Method. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline was followed. This meta-analysis employed a review of both published and unpublished studies conducted in Ethiopia. The databases used were PubMed, Google Scholar, CINAHL, and African Journals Online. Relevant search terms for prevalence and determinants of LBW were used to retrieve articles. The meta-analysis was conducted using STATA 14 software. Forest plots were used to present the findings. The Cochran Q test and I2 test statistics were used to test heterogeneity across studies. Egger’s test was used to assess the publication bias of included studies. The pooled prevalence and the odds ratios (OR) with 95% confidence intervals (CI) were computed and were presented using forest plots. Results. A total of 28 studies, 50,110 newborn babies, were included in this meta-analysis. The pooled prevalence of LBW in Ethiopia was 14.1% (95% CI = 11.2, 17.1). Higher variation in the prevalence of LBW in different regions across the country was observed. Significant association of LBW with sex of the newborn baby, higher odds among female babies (OR = 1.5 (95% CI = 1.2, 1.7)), prematurity (OR = 4.7 (95% CI = 1.5, 14.5)), not attending prenatal care (OR = 1.7 (95% CI = 1.4, 2.2)), pregnancy-induced hypertension (OR = 6.7 (95% CI = 3.5, 12.9)), and newborn babies whose mothers were from rural areas (OR = 1.8 (95% CI = 1.2, 2.6) were the factors associated with low birth weight. Conclusions. The prevalence of LBW in Ethiopia was high. LBW was associated with several maternal and newborn characteristics. The large disparity of LBW among the different regions in the country needs targeted intervention in areas with higher prevalence. Particular emphasis should be given to mothers residing in rural areas. Community-based programs are important to increase the use of prenatal care.

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