Estimating the health-care costs of children born to pregnant smokers in England: cohort study using primary and secondary health-care data.
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ABSTRACT: BACKGROUND AND AIMS:Little is known about the long-term economic consequences of smoking during pregnancy. We estimated the association between smoking in pregnancy and the costs of delivering health-care to infants and children in England, and investigated which aspects of care are the key drivers of these costs. METHODS:We used Hospital Episode Statistics (HES) linked with Clinical Practice Research Datalink (CPRD) data in England from January 2003 to January 2015 in children with longitudinal data for at least 1, 5 and 10 years after birth. Poisson regression provided rate ratios (RR) and 95% confidence intervals (CIs) comparing health-care episode rates between those exposed and not exposed to smoking during pregnancy. Linear regression was used to compare estimated costs between groups (£ sterling, 2015 prices) and generalized linear multivariable (GLM) models adjusted for potentially moderating factors. RESULTS:A total of 93?152 singleton pregnancies with the required data were identified. Maternal smoking in pregnancy was associated with higher primary care, prescription and hospital in-patient episode rates, but lower out-patient visit and diagnostic test rates. Adjusting for year of birth, socio-economic deprivation, parity, sex of child and delivery method showed that maternal smoking in pregnancy was associated with increased child health-care costs at 1 year [average cost difference for children of smokers, ? = £91.18, 95% confidence interval (CI) = £47.52-134.83 and 5 years of age (? = £221.80, 95% CI = £17.78-425.83], but not at 10 years of age (? = £365.94, 95% CI = -£192.72 to £924.60). CONCLUSION:In England, maternal smoking in pregnancy is associated with increased child health-care costs over the first 5 years of life; these costs are driven primarily by greater hospital in-patient care.
SUBMITTER: Vaz LR
PROVIDER: S-EPMC6033143 | biostudies-literature | 2018 Jul
REPOSITORIES: biostudies-literature
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