Social Determinants of Infant Mortality in a Historical Swedish Cohort

Sovio, Ulla; Dibden, Amanda; Koupil, Ilona

doi:10.1111/j.1365-3016.2012.01302.x

Cited by 15 publications

(19 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although midwives' birth records are less informative and probably with less accurate measurements of the birth weight (contributing to potential misclassification) than those kept at hospitals, having both types of deliveries in our cohort improves the generalizability of the results. In the early 20th century, giving birth at home was more common among comparatively affluent urban women with uncomplicated pregnancies . This difference is also reflected in the somewhat higher mean birth weight in ULSAM than in UBCoS.…”

Section: Discussionmentioning

confidence: 59%

“…In the early 20th century, giving birth at home was more common among comparatively affluent urban women with uncomplicated pregnancies. (25,54) This difference is also reflected in the somewhat higher mean birth weight in ULSAM than in UBCoS. On the other hand, although UBCoS is hospital based, its participants are representative of the region and Sweden in terms of characteristics such as infant mortality (55) and subsequent fertility.…”

Section: Strengths and Limitationsmentioning

confidence: 99%

See 1 more Smart Citation

Birth Weight Is Not Associated With Risk of Fracture: Results From Two Swedish Cohort Studies

Byberg

Michaëlsson

Goodman

et al. 2014

Journal of Bone and Mineral Research

Self Cite

View full text Add to dashboard Cite

Development and growth in utero has been suggested to influence bone health. However, the relationship with risk of fracture in old age is largely unknown. Using Cox proportional hazards regression, we studied the association between birth weight and fractures at ages 50-94 among 10,893 men and women (48% women) from the Uppsala Birth Cohort Study (UBCoS, born 1915-29) and 1334 men from the Uppsala Longitudinal Study of Adult Men (ULSAM, born 1920-24). Measured birth weight was collected from hospital or midwives' records and fractures from the Swedish National Patient Register. We observed 2796 fractures (717 of these were hip fractures) in UBCoS and 335 fractures (102 hip fractures) in ULSAM. In UBCoS, the hazard ratio (HR) per 1 kg increase in birth weight, adjusted for sex and socioeconomic status at birth, was 1.01 [95% confidence interval (CI), 0.94-1.09] for any fracture and 1.06 (95% CI, 0.91-1.23) for hip fracture. Estimates in ULSAM were similar. We did not observe a differential association of birth weight with fractures occurring before age 70 or after age 70 years. Neither birth weight standardized for gestational age nor gestational duration was associated with fracture rate. In linear regression, birth weight was not associated with bone mineral density among 303 men who were 82-years-old in ULSAM but showed positive associations with total body bone mineral content (b per kg increase in birth weight, adjusted for social class and age, 133; 95% CI, 30-227). This association was attenuated after further adjustment for body mass index and height (b,41; 95% CI,. We conclude that birth weight is associated with bone mineral content but this association does not translate into an association with risk of fracture in men and women aged 50-94 years.

show abstract

Section: Discussionmentioning

confidence: 59%

Section: Strengths and Limitationsmentioning

confidence: 99%

Birth Weight Is Not Associated With Risk of Fracture: Results From Two Swedish Cohort Studies

Byberg

Michaëlsson

Goodman

et al. 2014

Journal of Bone and Mineral Research

Self Cite

View full text Add to dashboard Cite

show abstract

“…A study conducted in India among neonates revealed that mortality was highest among newborns whose birth size was smaller than average [35]. Another epidemiological study also found a similar association reporting lower odds of dying among infants born with average or larger than average birth sizes [36]. …”

Section: Discussionmentioning

confidence: 97%

Factors associated with infant mortality in Nepal: a comparative analysis of Nepal demographic and health surveys (NDHS) 2006 and 2011

et al. 2017

View full text Add to dashboard Cite

BackgroundInfant mortality is one of the priority public health issues in developing countries like Nepal. The infant mortality rate (IMR) was 48 and 46 per 1000 live births for the year 2006 and 2011, respectively, a slight reduction during the 5 years’ period. A comprehensive analysis that has identified and compared key factors associated with infant mortality is limited in Nepal, and, therefore, this study aims to fill the gap.MethodsDatasets from Nepal Demographic and Health Surveys (NDHS) 2006 and 2011 were used to identify and compare the major factors associated with infant mortality. Both surveys used multistage stratified cluster sampling techniques. A total of 8707 and 10,826 households were interviewed in 2006 and 2011, with more than 99% response rate in both studies. The survival information of singleton live-born infants born 5 years preceding the two surveys were extracted from the ‘childbirth’ dataset. Multiple logistic regression analysis using a hierarchical modelling approach with the backward elimination method was conducted. Complex Samples Analysis was used to adjust for unequal selection probability due to the multistage stratified cluster-sampling procedure used in both NDHS.ResultsBased on NDHS 2006, ecological region, succeeding birth interval, breastfeeding status and type of delivery assistance were found to be significant predictors of infant mortality. Infants born in hilly region (AOR = 0.43, p = 0.013) and with professional assistance (AOR = 0.27, p = 0.039) had a lower risk of mortality. On the other hand, infants with succeeding birth interval less than 24 months (AOR = 6.66, p = 0.001) and those who were never breastfed (AOR = 1.62, p = 0.044) had a higher risk of mortality.Based on NDHS 2011, birth interval (preceding and succeeding) and baby’s size at birth were identified to be significantly associated with infant mortality. Infants born with preceding birth interval (AOR = 1.94, p = 0.022) or succeeding birth interval (AOR = 3.22, p = 0.002) shorter than 24 months had higher odds of mortality while those born with a very large or larger than average size had significantly lowered odds (AOR = 0.17, p = 0.008) of mortality.ConclusionIMR and associated risk factors differ between NDHS 2006 and 2011 except ‘succeeding birth interval’ which attained significant status in the both study periods. This study identified the ecological region, birth interval, delivery assistant type, baby’s birth size and breastfeeding status as significant predictors of infant mortality.

show abstract

“…The identification of pertinent perinatal and early birth factors that are predictive of early childhood mortality will help detect infants that are most vulnerable at an early age . While many studies have identified risk factors for perinatal and infant mortality, only few studies have explored their role as predictive factors for longer term mortality into early childhood . Gestational age at birth and severe neonatal morbidity have been well studied and identified as the two leading factors associated with neonatal mortality and stand out as two key perinatal risk factors to assess for early childhood mortality.…”

mentioning

confidence: 99%

Association of Gestational Age and Severe Neonatal Morbidity with Mortality in Early Childhood

Stephens

Lain

Roberts

et al. 2016

Paediatric Perinatal Epid

View full text Add to dashboard Cite

show abstract

Social Determinants of Infant Mortality in a Historical Swedish Cohort

Abstract: Our findings of determinants of neonatal and post-neonatal mortality in 1915-1929 are strikingly consistent with results from contemporary cohorts. On the other hand, contrary to most recent findings, there is no evidence of a LBW paradox in this historical cohort.

Cited by 15 publications

References 19 publications

Birth Weight Is Not Associated With Risk of Fracture: Results From Two Swedish Cohort Studies

Birth Weight Is Not Associated With Risk of Fracture: Results From Two Swedish Cohort Studies

Factors associated with infant mortality in Nepal: a comparative analysis of Nepal demographic and health surveys (NDHS) 2006 and 2011

Association of Gestational Age and Severe Neonatal Morbidity with Mortality in Early Childhood

Contact Info

Product

Resources

About