scholarly journals Determinants of preterm birth: Pelotas, Rio Grande do Sul State, Brazil, 2004 birth cohort

2010 ◽  
Vol 26 (1) ◽  
pp. 185-194 ◽  
Author(s):  
Mariângela F. Silveira ◽  
Cesar G. Victora ◽  
Aluísio J. D. Barros ◽  
Iná S. Santos ◽  
Alicia Matijasevich ◽  
...  
Keyword(s):  
Risk Factors ◽  
Preterm Birth ◽  
Birth Cohort ◽  
Low Income ◽  
Family Income ◽  
Preterm Births ◽  
Rio Grande ◽  
Low Income Countries ◽  
Rio Grande Do Sul ◽  
Vaginal Deliveries

Prematurity is a leading cause of neonatal mortality and a global health problem that affects high, middle and low-income countries. Several factors may increase the risk of preterm birth. In this article, we test the hypothesis that different risk factors determine preterm birth in different income groups by investigating whether risk factors for preterm deliveries in the 2004 Pelotas (Rio Grande do Sul State, Brazil) birth cohort vary among those groups. A total of 4,142 women were included in the analysis. Preterm births were equally common among women who had spontaneous vaginal deliveries as for those with induced or operative births. In the multivariate analysis the factors that remained significantly associated with preterm birth were black skin color, low education, poverty, young maternal age, primiparity, previous preterm birth, inadequacy of prenatal care and reported hypertension. In the analyses repeated after stratification by family income terciles, there was no evidence of effect modification by income and no clear difference between the socioeconomic groups. No association between cesarean section and preterm delivery was found. Further studies are required to understand the causes of the epidemic of preterm births in Brazil.

scholarly journals Low birthweight and preterm birth: trends and inequalities in four population-based birth cohorts in Pelotas, Brazil, 1982–2015

2018 ◽  
Vol 48 (Supplement_1) ◽  
pp. i46-i53 ◽  
Author(s):  
Mariangela F Silveira ◽  
Cesar G Victora ◽  
Bernardo L Horta ◽  
Bruna G C da Silva ◽  
Alicia Matijasevich ◽  
...  
Keyword(s):  
Risk Factors ◽  
Preterm Birth ◽  
Low Income ◽  
Low Birthweight ◽  
Family Income ◽  
Preterm Births ◽  
Population Based ◽  
Skin Colour ◽  
Birth Cohorts ◽  
Maternal Risk

Abstract Background Despite positive changes in most maternal risk factors in Brazil, previous studies did not show reductions in preterm birth and low birthweight. We analysed trends and inequalities in these outcomes over a 33-year period in a Brazilian city. Methods Four population-based birth cohort studies were carried out in the city of Pelotas in 1982, 1993, 2004 and 2015, with samples ranging from 4231 to 5914 liveborn children. Low birthweight (LBW) was defined as <2500 g, and preterm birth as less than 37 weeks of gestation. Information was collected on family income, maternal skin colour and other risk factors for low birthweight. Multivariable linear regression was used to estimate the contribution of risk factors to time trends in birthweight. Results Preterm births increased from 5.8% (1982) to 13.8% (2015), and LBW prevalence increased from 9.0% to 10.1%, being higher for boys and for children born to mothers with low income and brown or black skin colour. Mean birthweight remained stable, around 3200 g, but increased from 3058 to 3146 g in the poorest quintile and decreased from 3307 to 3227 g in the richest quintile. After adjustment for risk factors for LBW, mean birthweight was estimated to have declined by 160 g over 1982–2015 (reductions of 103 g in the poorest and 213 g in the richest quintiles). Conclusions Data from four birth cohorts show that preterm births increased markedly. Mean birthweights remained stable over a 33-year period. Increased prevalence of preterm and early term births, associated with high levels of obstetric interventions, has offset the expected improvements due to reduction in risk factors for low birthweight.

scholarly journals Time trends and sociodemographic determinants of preterm births in pregnancy cohorts in Matlab, Bangladesh, 1990–2014

2019 ◽  
Vol 4 (4) ◽  
pp. e001462 ◽  
Author(s):  
Anisur Rahman ◽  
Monjur Rahman ◽  
Jesmin Pervin ◽  
Abdur Razzaque ◽  
Shaki Aktar ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Preterm Birth ◽  
Low Income ◽  
Time Trends ◽  
Maternal Education ◽  
Preterm Births ◽  
Population Based ◽  
Low Income Countries ◽  
Sociodemographic Determinants ◽  
Gestational Age At Birth

IntroductionPreterm birth is the major cause of under-five mortality. Population-based data on determinants and proportions of children born preterm are limited, especially from low-income countries. This study aimed at assessing time trends and social, reproductive and environmental determinants of preterm births based on a population-based pregnancy cohort over 25 years in rural Bangladesh.MethodsIn this cohort study in Matlab, a rural area in Bangladesh, we used data from the Health and Demographic Surveillance System from 1990 to 2014. Gestational age at birth was based on the reported last menstrual period and verified by ultrasound assessments. Preterm birth proportions were assessed within strata of social and reproductive characteristics, and time series analysis was performed with decomposition for trend and seasonality. We also determined the prevented fractions of preterm birth reduction associated with social and demographic changes during the follow-up period.ResultsAnalyses were based on 63 063 live births. Preterm birth decreased from 29% (95% CI 28.6 to 30.1) in 1990–1994 to 11% (95% CI 10.5 to 11.6) in 2010–2014. Low education, older age and multi-parity were associated with higher proportions of preterm births across the study period. Preterm births had a marked seasonal variation. A rapid increase in women’s educational level and decrease in parity were associated with the decline in preterm births, and 27% of the reduction observed from 1990 to 2014 could be attributed to these educational and reproductive changes.ConclusionThe reduction in preterm birth was to a large extent associated with the sociodemographic transition, especially changes in maternal education and parity. The persistent seasonal variation in the proportion of preterm birth may reflect the environmental stressors for pregnant women across the study period. Continued investments in girls’ education and family planning programmes may contribute to further reduction of preterm births in Bangladesh.

scholarly journals Prevalence of Intestinal Parasitic Infections and Associated Risk Factors among the First-Cycle Primary Schoolchildren in Sasiga District, Southwest Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Baye Sitotaw ◽  
Wakgari Shiferaw
Keyword(s):  
Risk Factors ◽  
Low Income ◽  
Family Income ◽  
Low Income Countries ◽  
Personal Hygiene ◽  
Parasitic Infections ◽  
Intestinal Parasitic Infections ◽  
Southwest Ethiopia ◽  
Primary Schoolchildren ◽  
Associated Risk Factors

Intestinal parasitic infections (IPIs) have been major public health burdens in low-income countries like Ethiopia. Studies in different areas of Ethiopia have shown a high prevalence of IPIs in poor families. A similar study has not been conducted in Sasiga District given that the area is possibly at high-risk of IPIs due to the prevailing risk factors. This study is aimed at assessing the prevalence of IPIs and associated risk factors among schoolchildren in Sasiga District, southwest Ethiopia. A school-based cross-sectional study was conducted from December 2018 to March 2019 to estimate the prevalence of IPIs and associated risk factors among the study participants. A total of 383 children were selected using resident-type and grade-level stratified systematic random sampling technique. Stool samples were examined microscopically using direct wet mount and formal-ether concentration techniques. A structured questionnaire was used to get information on the associated risk factors. Data were analyzed using SPSS version 20 and p value of ≤0.05 was taken as statistically significant. The overall prevalence of IPIs among the children was 62.4% (239/383). Single, double, and triple infections were 49.9%, 10.7%, and 1.83%, respectively. Residence, family income, place of defecation, source of drinking water, shoe-wearing habit, handwashing habit after toilet use, ways of waste disposal, and cleanliness of fingernail were the most important predictors of IPIs (p<0.05). Ascaris lumbricoides (22.7% (87/383)) and hookworms (20.6% (79/383)) were the most prevalent parasites, followed by Entamoeba histolytica (8.1%), Trichuris trichiura (7.6%), Giardia intestinalis (6.5%), Hymenolepis nana (5.7%), and Schistosoma mansoni (4.4%), in that order. Sasiga District primary schoolchildren are likely at a high burden of IPIs. Intensive health education on personal hygiene and environmental sanitation is needed.

scholarly journals Risk factors for preterm births in São Luís, Maranhão, Brazil

2004 ◽  
Vol 20 (1) ◽  
pp. 57-63 ◽  
Author(s):  
Vânia Maria de Farias Aragão ◽  
Antônio Augusto Moura da Silva ◽  
Lívia Farias de Aragão ◽  
Marco Antônio Barbieri ◽  
Heloísa Bettiol ◽  
...  
Keyword(s):  
Risk Factors ◽  
Preterm Birth ◽  
Prenatal Care ◽  
Maternal Age ◽  
Family Income ◽  
Preterm Births ◽  
Neonatal Morbidity ◽  
Public And Private ◽  
Public And Private Hospitals ◽  
Hospital Births

Preterm birth continues to be one of the main causes of neonatal morbidity and mortality. The objective of the present study was to identify risk factors for preterm birth in São Luís, Maranhão, Brazil. The sample consisted of hospital births at 10 public and private hospitals from March 1, 1997 to February 28, 1998. A total of 2,443 live births were randomly selected, excluding multiple deliveries and stillbirths. Preterm birth rate in São Luís was 12.7%. Risk factors for preterm delivery were maternal age below 18 years, family income equal to or less than one minimum wage/ month, primiparity, vaginal delivery at a public hospital, single mothers (or living without a partner), and absence of prenatal care. The following factors remained associated with preterm birth after multivariate analysis to control for confounding: maternal age below 18 years (OR = 1.9), primiparity (OR = 1.5), and failure to appear for scheduled prenatal care visits (OR = 1.5).

A Cross-sectional Study of the Clinical Profile of Children With Cerebral Palsy in Benin, a West African Low-Income Country

2019 ◽  
Vol 34 (13) ◽  
pp. 842-850
Author(s):  
Emmanuel Segnon Sogbossi ◽  
Damienne Houekpetodji ◽  
Toussaint G. Kpadonou ◽  
Yannick Bleyenheuft
Keyword(s):  
Risk Factors ◽  
Cerebral Palsy ◽  
Low Income ◽  
Classification System ◽  
West African ◽  
Low Income Countries ◽  
Cross Sectional ◽  
Common Cause ◽  
Low Income Country ◽  
Children With Cerebral Palsy

Cerebral palsy is a common cause of pediatric motor disability. Although there are increasing amounts of data on the clinical profile of children with cerebral palsy in high-income countries, corresponding information about low-income countries and developing countries is lacking. Therefore, we aimed to describe the clinical spectrum of cerebral palsy in children in Benin, a representative West African low-income country. Our cross-sectional observational study included 114 children with cerebral palsy recruited from community-based rehabilitation centers and teaching hospitals (median age: 7 years, range 2-17; sex: 66% male). Data were collected through review of medical records and interviews with children’s mothers. Assessment included risk factors, clinical subtypes according to the Surveillance of CP in Europe criteria, severity of motor outcome scored by the Gross Motor Function Classification System (GMFCS) and Manual Ability Classification System, comorbidities, and school attendance. We recorded a high prevalence of intrapartum adverse events. Seventeen percent of children had postneonatal cerebral palsy, with cerebral malaria being the most common cause. Most children were severely affected (67.5% as bilateral spastic; 54.4% as GMFCS IV or V), but severity declined substantially with age. Only 23% of the children with cerebral palsy had attended school. Poor motor outcomes and comorbidities were associated with school nonattendance. These results suggest that intrapartum risk factors and postnatal cerebral malaria in infants are opportune targets for prevention of cerebral palsy in Sub-Saharan low-income countries.

scholarly journals Magnitude of spontaneous preterm birth and its associated factors among preterm birth in NICU wards in Asella Teaching and Referral Hospital, Asella, Oromia, Ethiopia

2021 ◽  
Vol 49 (8) ◽  
pp. 030006052110346
Author(s):  
Techane Sisay Tuji ◽  
Addisu Dabi Wake ◽  
Gezahegn Badeg Adere ◽  
Aselefu Beka Wedajo ◽  
Batu Dekeba Obole ◽  
...  
Keyword(s):  
Risk Factors ◽  
Preterm Birth ◽  
Healthcare Providers ◽  
Preterm Births ◽  
Cross Sectional Study ◽  
Spontaneous Preterm Birth ◽  
Related Factors ◽  
Cross Sectional ◽  
Bivariate Logistic Regression ◽  
Associated Risk Factors

Objective To assess the prevalence of spontaneous preterm births and to identify the associated risk factors. Methods This single-centre cross-sectional study enrolled women that experienced a preterm birth as registered on the neonatal log-book between 30 December 2019 and 30 December 2020. A pre-tested structured checklist was used to collect data (sociodemographic characteristics; obstetric-related factors; medical history; and pregnancy-related factors). Bivariate logistic regression analyses were applied to identify factors associated with spontaneous preterm birth. A multivariate model identified significant independent risk factors. Results A total of 310 patients participated in the study. The prevalence of spontaneous preterm birth in this population was 67.1% (208 of 310; 95% confidence interval [CI] 61.5, 71.9). Patients without a partner (adjusted odds ratio [AOR] = 1.470, 95% CI 1.23, 4.42), patients residing in a rural area (AOR = 2.51, 95% CI 1.123, 5.513) and those with a history of PIH during their current pregnancy (AOR = 0.104, 95% CI 0.053, 0.014) were significantly more likely to have a spontaneous preterm birth. Conclusion The prevalence of spontaneous preterm birth in in this study was high. Healthcare providers and all stakeholders should focus on screening pregnant women at the risk of spontaneous preterm birth.

Impact of smoking and fetal gender on preterm delivery

2020 ◽  
pp. 1-6
Author(s):  
Veronika Günther ◽  
Ibrahim Alkatout ◽  
Alexandra Stein ◽  
Nicolai Maass ◽  
Alexander Strauss ◽  
...  
Keyword(s):  
Risk Factors ◽  
Preterm Birth ◽  
Preterm Delivery ◽  
Preterm Infants ◽  
Preterm Births ◽  
World Health ◽  
Smoking During Pregnancy ◽  
Fetal Gender ◽  
Extremely Preterm ◽  
Heavy Smokers

Abstract According to the World Health Organization, smoking is the most important risk factor for adverse pregnancy outcomes in industrialized nations. We aimed to establish how fetal gender and smoking interact with regard to perinatal outcomes, especially preterm delivery. Data from 220,339 singleton pregnancies, obtained from the German Perinatal Survey in Schleswig-Holstein and registered between 2004 and 2017 were analyzed in regard to smoking behavior, fetal gender, and preterm delivery. The rate of preterm births was directly proportional to the women’s consumption of nicotine. The rate of preterm deliveries was 6.8% among nonsmokers, and 13.2% in women who were very heavy smokers (≥22 cigarettes/day). Very heavy smoking (≥22 cigarettes/day) had a marked impact on extremely preterm births (<28 weeks of gestation) and very preterm births (28–31 weeks of gestation). Preterm births increased by 1.2% from heavy smokers to very heavy smokers; the differences between the other groups ranged between 0.1% and 0.4%. Fetal gender also had an impact on preterm birth: male infants were predominant in nearly all groups of women who delivered preterm infants. Smoking during pregnancy and male gender are both risk factors for preterm delivery. Fetal gender should be given greater attention as one of the several risk factors of preterm birth. Due to the high rate of morbidity among preterm infants and enormous costs for the healthcare system, women should be encouraged to cease or at least reduce smoking during pregnancy.

144: Partner- and partnership-related risk factors for preterm birth among low-income women in Lima, Peru

2008 ◽  
Vol 199 (6) ◽  
pp. S53
Author(s):  
Kathleen Paul ◽  
Pedro Garcia ◽  
Lisa Manhart ◽  
King Holmes ◽  
Jane Hitti
Keyword(s):  
Risk Factors ◽  
Preterm Birth ◽  
Low Income ◽  
Related Risk ◽  
Low Income Women

scholarly journals Acute lower respiratory illness in under-five children in Rio Grande, Rio Grande do Sul State, Brazil: prevalence and risk factors

2008 ◽  
Vol 24 (6) ◽  
pp. 1429-1438 ◽  
Author(s):  
Silvio O. M. Prietsch ◽  
Gilberto B. Fischer ◽  
Juraci A. César ◽  
Berenice S. Lempek ◽  
Luciano V. Barbosa Jr. ◽  
...  
Keyword(s):  
Risk Factors ◽  
Protective Factor ◽  
Family Income ◽  
Rio Grande ◽  
Respiratory Illness ◽  
Acute Lower Respiratory Infection ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Maternal Schooling ◽  
The City

This study aimed to determine the prevalence of acute lower respiratory illness and to identify associated factors among children less than five years of age in the city of Rio Grande, southern Brazil. Using a cross-sectional survey, a standardized household questionnaire was applied to mothers or guardians. Information was collected on household conditions, socioeconomic status, and parental smoking. Prenatal care attendance, nutritional status, breastfeeding pattern, and use of health services for the children were also investigated. Data analysis was based on prevalence ratios and logistic regression, using a conceptual framework. Among 771 children studied, 23.9% presented acute lower respiratory illness. The main risk factors were previous episodes of acute lower respiratory infection or wheezing, crowding, maternal schooling less than five years, monthly family income less than US$ 200, four or more people per room, asthma in family members, and maternal smoking. Mothers 30 years or older were identified as a protective factor. These results can help define specific measures to reduce morbidity and mortality due to acute lower respiratory illness in this setting.

scholarly journals Changing Epidemiology of Acute Respiratory Infections in Under-Two Children in Dhaka, Bangladesh

2022 ◽  
Vol 9 ◽  
Author(s):  
Karine Vidal ◽  
Shamima Sultana ◽  
Alberto Prieto Patron ◽  
Irene Salvi ◽  
Maya Shevlyakova ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Low Income ◽  
Respiratory Infections ◽  
Monsoon Season ◽  
Low Income Countries ◽  
Health Study ◽  
Acute Respiratory Infections ◽  
Respiratory Pathogens ◽  
Prevention Measures

Objectives: Risk factors for acute respiratory infections (ARIs) in community settings are not fully understood, especially in low-income countries. We examined the incidence and risk factors associated with ARIs in under-two children from the Microbiota and Health study.Methods: Children from a peri-urban area of Dhaka (Bangladesh) were followed from birth to 2 years of age by both active surveillance of ARIs and regular scheduled visits. Nasopharyngeal samples were collected during scheduled visits for detection of bacterial facultative respiratory pathogens. Information on socioeconomic, environmental, and household conditions, and mother and child characteristics were collected. A hierarchical modeling approach was used to identify proximate determinants of ARIs.Results: Of 267 infants, 87.3% experienced at least one ARI episode during the first 2 years of life. The peak incidence of ARIs was 330 infections per 100 infant-years and occurred between 2 and 4 months of age. Season was the main risk factor (rainy monsoon season, incidence rate ratio [IRR] 2.43 [1.92–3.07]; cool dry winter, IRR 2.10 [1.65–2.67] compared with hot dry summer) in the first 2 years of life. In addition, during the first 6 months of life, young maternal age (&lt;22 years; IRR 1.34 [1.01–1.77]) and low birth weight (&lt;2,500 g; IRR 1.39 [1.03–1.89]) were associated with higher ARI incidence.Conclusions: Reminiscent of industrialized settings, cool rainy season rather than socioeconomic and hygiene conditions was a major risk factor for ARIs in peri-urban Bangladesh. Understanding the causal links between seasonally variable factors such as temperature, humidity, crowding, diet, and ARIs will inform prevention measures.

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