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Title
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Impact of waist circumference difference on health-care Cost among overweight and obese subjects : the PROCEED Cohort
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Author
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Abstract
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| Objective: To estimate the incremental effect of waist circumference (WC) on health-care costs among overweight and obese subjects after adjusting for body mass index (BMI). Methods: A prospective study. The subjects were members of Internet panels in the United States (US) and Germany. 10,816 individuals (United States: n = 5410; Germany: n = 5406) aged 30-70 years with BMI scores between 20 and 35 kg/m(2) were recruited and grouped by category: healthy weight (BMI 20-24.9 kg/m(2)), overweight (BMI 25-29.9 kg/m(2)), and obese (BMI 30-35 kg/m(2)). Within the overweight and obese categories, the individuals were stratified by sex and within those subgroups, characterized as above or below the median WC. The subjects self-reported weight, WC, and health-care resource use at baseline, 3 months, and 6 months using online questionnaires. Over 65% of the recruited subjects completed all surveys. Resource utilization was translated into health-care costs by multiplying unit costs from national sources in each country. Annualized health costs were summarized for subjects with low and high WC within the overweight and obese categories. A two-part model generated predicted annual costs because of the WC difference controlling for BMI, demographic, and lifestyle variables among the overweight and obese subjects. Results: When BMI and other characteristics are constant, annual healthcare costs are 16% to 18% higher in Germany and 20% to 30% higher in the United States for the subjects with a high WC compared with subjects with a low WC. Conclusions: Targeting people with a high waist circumference for weight management whether they are overweight or obese may maximize cost-efficacy. |
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Language
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English
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Source (journal)
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Value in health. - Oxford
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Publication
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Oxford
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2010
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ISSN
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1098-3015
[print]
1524-4733
[online]
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DOI
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10.1111/J.1524-4733.2009.00690.X
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Volume/pages
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13
:4
(2010)
, p. 402-410
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ISI
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000279872300011
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Full text (Publisher's DOI)
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Full text (open access)
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