Neighborhood deprivation and preterm birth: an application of propensity score matching

Ma, Xiaoguang; Fleischer, Nancy L.; Liu, Jihong; Hardin, James W.; Zhao, Guohao; Liese, Angela D.

doi:10.1016/j.annepidem.2014.11.021

Cited by 28 publications

(32 citation statements)

References 28 publications

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“…Although these studies have attempted to control for individual level factors on adverse perinatal outcomes, the definition of a deprived neighborhood has not been consistent across studies, nor were the numbers of social factors included in adjusted models . In ethnicity‐adjusted studies from the USA, associations of living in a deprived area and preterm birth disappear, but the neighborhood effect on birth outcomes differed between non‐Hispanic blacks and non‐Hispanic whites, indicating an interaction . An intriguing finding was the observed low risk on preterm birth in deprived areas found in our study.…”

Section: Discussioncontrasting

confidence: 53%

“…To explore and evaluate the contextual effect on birth outcomes, a PS‐based method was used to control for individual maternal and social factors known to influence outcomes. The use of propensity scores for the present analyses were inspired by previous work in the area; this statistical approach is an alternative to adjustment of confounders on the outcome, as random assignment of residence is not feasible. An important advantage is that various variables describing and predicting an individual probability to live in a certain neighborhood could be included in our model without concern of overfitting or collinearity .…”

Section: Discussionmentioning

confidence: 99%

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Neighborhood deprivation and adverse perinatal outcomes in Sweden: A population‐based register study

Hesselman

Wikström

Skalkidou

et al. 2019

Acta Obstet Gynecol Scand

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Introduction Neighborhood deprivation has been associated with adverse perinatal outcomes but it is unclear to what extent maternal and social risk factors explain the association and how a stressful environment per se contributes. Material and methods A population‐based register study including 218 030 deliveries in Sweden between January 2013 and July 2017 was conducted. Exposure was living in a deprived or severely deprived area defined by the National Operations Department of the Swedish Police Authority. Adverse perinatal outcomes included preterm births, small‐for‐gestational‐age births and stillbirths. A propensity score‐based method was used to control for individual baseline characteristics. Associations were investigated with logistic regression analyses and risk estimates are presented as crude (OR) and adjusted odds ratio (aOR) with 95% confidence interval (CI). Results Living in a deprived neighborhood in Sweden was associated with extremely preterm births (deprived area OR 1.50, 95% CI 1.07‐2.11, severely deprived OR 1.90, 95% CI 1.40‐2.58), small‐for‐gestational‐age birth (deprived OR 1.45, 95% CI 1.31‐1.60, severely deprived OR 1.85, 95% CI 1.69‐2.03) and stillbirth (deprived OR 1.62, 95% CI 1.17‐2.26, severely deprived OR 1.56, 95% CI 1.11‐2.19). After accounting for individual maternal and social risk factors, the risk of small for gestational age in severely deprived areas remained (aOR 1.45, 95% CI, 1.19‐1.75). Conclusions The contextual effect of living in a deprived neighborhood on the risk of extremely preterm births, small‐for‐gestational‐age births and stillbirths was to a high extent explained by individual factors of women residing in exposed areas, yet remained for small‐for‐gestational‐age births in severely deprived areas after adjustment for maternal and social risk factors.

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Section: Discussioncontrasting

confidence: 53%

Section: Discussionmentioning

confidence: 99%

Neighborhood deprivation and adverse perinatal outcomes in Sweden: A population‐based register study

Hesselman

Wikström

Skalkidou

et al. 2019

Acta Obstet Gynecol Scand

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“…For example, the study population in Messer et al (2006b) included over 200,000 mothers from Pennsylvania, Maryland, Michigan, and North Carolina, and Messer et al (2006a) examined over 13,000 mothers from North Carolina. Ma et al (2014) included mothers from all over SC, and the variability in NDI for all block groups in SC was higher than that of the subset of block groups examined in the current study (data not shown). Additionally, our study population was based on prevalence of ID and DD in study areas, suggesting population homogeneity on risk factors associated with these outcomes.…”

Section: Discussionmentioning

confidence: 55%

Potential sources and racial disparities in the residential distribution of soil arsenic and lead among pregnant women

Davis

Aelion

Liu

et al. 2016

Science of The Total Environment

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Exposure to arsenic (As) or lead (Pb) has been associated with adverse health outcomes, and high-risk populations can be disproportionately exposed to these metals in soils. The objectives of this study were: to examine if predicted soil As and Pb concentrations at maternal residences of South Carolina (SC) low-income mothers differed based on maternal race (non-Hispanic black versus white), to examine whether differences in predicted residential soil As and Pb concentrations among black and white mothers differed by socioeconomic status (SES), and to examine whether such disparities persisted after controlling for anthropogenic sources of these metals, including direction from, and distance to industrial facilities. Kriged soil As and Pb concentrations were estimated at maternal residences in 11 locations in SC, and models with maternal race and both individual and US Census block group level SES measures were examined. US Environmental Protection Agency Toxics Release Inventory (TRI) facility As and Pb releases categorized by distance and direction to block groups in which mothers resided were also identified, as were proxy measures for historic use of leaded gasoline (road density) and Pb-based paint (categories of median year home built by US Census block group). Consistent racial disparities were observed for predicted residential soil As and Pb concentrations, and the disparity was stronger for Pb than As (betas from adjusted models for black mothers were 0.12 and 2.2 for As and Pb, respectively, all p<0.006). Higher road density and older homes in block groups were more closely associated with higher predicted soil As and Pb concentrations than on-site releases of As and Pb categorized by facility location. The findings suggest that non-Hispanic black mothers in this study population had elevated residential As and Pb soil concentrations, after adjusting for SES, and that soil As and Pb concentrations were not associated with recent industrial releases.

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“…Of the few that have employed propensity score methods, significant differences were detected among Blacks, but not Whites. 34 …”

Section: Discussionmentioning

confidence: 99%

“…To account for potential differences between women living in neighborhoods with high and low domestic violence rates (selection bias), 34 propensity for living in a high domestic violence neighborhood (those with a domestic violence rate above the 75 th percentile of sample distribution) was estimated by a regression model including maternal age, education, smoking status, Medicaid enrollment, and number of previous live births.…”

Section: Methodsmentioning

confidence: 99%

Living in violence: Neighborhood domestic violence and small for gestational age births

2017

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Objectives To determine the association between neighborhood domestic violence and small-for-gestational-age (SGA) birth and to examine if there is a differential impact of neighborhood domestic violence on SGA births by race in a high crime community. Methods This analysis includes all birth records issued in New Orleans, Louisiana from 2011–2012 geocoded by census tract (N=177 census tracts, N=8,322 women). Hierarchical modeling and ecologic spatial analysis were used to examine the area-effect of neighborhood domestic violence on SGA births, independent of individual-level predictors and accounting for the propensity to live in high domestic violence neighborhoods. Results Tests for spatial autocorrelation reveled area-level clustering and overlap of SGA and domestic violent rates. Pregnant women living in high domestic violence areas were more likely to give birth to an SGA infant compared to women in low-domestic violence areas (OR=1.04, 95%CI: 1.01, 1.08), net of the effects of individual-level factors and propensity scores. Conclusion Neighborhood-level attributes including rates of domestic violence may increase women’s risk for SGA birth, highlighting a policy-relevant and potentially amenable exposure.

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Neighborhood deprivation and preterm birth: an application of propensity score matching

Cited by 28 publications

References 28 publications

Neighborhood deprivation and adverse perinatal outcomes in Sweden: A population‐based register study

Neighborhood deprivation and adverse perinatal outcomes in Sweden: A population‐based register study

Potential sources and racial disparities in the residential distribution of soil arsenic and lead among pregnant women

Living in violence: Neighborhood domestic violence and small for gestational age births

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