Journal
BMJ OPEN
Volume 4, Issue 2, Pages -Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/bmjopen-2013-003983
Keywords
Health Economics; Public Health
Categories
Funding
- Swansea University
- NISCHR
- MRC [MR/K006525/1, MR/K023233/1] Funding Source: UKRI
- Medical Research Council [MR/K006525/1, MR/K023233/1] Funding Source: researchfish
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Objective To estimate the direct healthcare cost of being overweight or obese throughout pregnancy to the National Health Service in Wales. Design Retrospective prevalence-based study. Setting Combined linked anonymised electronic datasets gathered on a cohort of women enrolled on the Growing Up in Wales: Environments for Healthy Living (EHL) study. Women were categorised into two groups: normal body mass index (BMI; n=260) and overweight/obese (BMI>25; n=224). Participants 484 singleton pregnancies with available health service records and an antenatal BMI. Primary outcome measure Total health service utilisation (comprising all general practitioner visits and prescribed medications, inpatient admissions and outpatient visits) and direct healthcare costs for providing these services in the year 2011-2012. Costs are calculated as cost of mother (no infant costs are included) and are related to health service usage throughout pregnancy and 2months following delivery. Results There was a strong association between healthcare usage cost and BMI (p<0.001). Adjusting for maternal age, parity, ethnicity and comorbidity, mean total costs were 23% higher among overweight women (rate ratios (RR)1.23, 95% CI 1.230 to 1.233) and 37% higher among obese women (RR 1.39, 95% CI 1.38 to 1.39) compared with women with normal weight. Adjusting for smoking, consumption of alcohol, or the presence of any comorbidities did not materially affect the results. The total mean cost estimates were 3546.3 for normal weight, 4244.4 pound for overweight and 4717.64 pound for obese women. Conclusions Increased health service usage and healthcare costs during pregnancy are associated with increasing maternal BMI; this was apparent across all health services considered within this study. Interventions costing less than 1171.34 pound per person could be cost-effective if they reduce healthcare usage among obese pregnant women to levels equivalent to that of normal weight women.
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