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- W2061624169 abstract "Objective: Low-carbohydrate diets have become a popular alternative to standard diets for weight loss. Our aim was to compare the cost-effectiveness of these two diets. Research Methods and Procedures: The patient population included 129 severely obese subjects (BMI = 42.9) from a randomized trial; participants had a high prevalence of diabetes or metabolic syndrome. We compared within-trial costs, quality-adjusted life years (QALYs), and the incremental cost-effectiveness ratio (CER) for the two study groups. We imputed missing values for QALYs. The CER was bootstrapped to derive 95% confidence intervals and to define acceptability cut-offs. We took a societal perspective for our analysis. Results: Total costs during the one year of the trial were $6742 ± 6675 and $6249 ± 5100 for the low-carbohydrate and standard groups, respectively (p = 0.78). Participants experienced 0.64 ± 0.02 and 0.61 ± 0.02 QALYs during the one year of the study, respectively (p = 0.17 for difference). The point estimate of the incremental CER was $−1225/QALY (i.e., the low-carbohydrate diet dominated the standard diet). However, in the bootstrap analysis, the wide spread of CERs caused the 95% confidence interval to be undefined. The probabilities that the low-carbohydrate diet was acceptable, using cut-offs of $50, 000/QALY, $100, 000/QALY, and $150, 000/QALY, were 72.4% 78.6%, and 79.8%, respectively. Discussion: The low-carbohydrate diet was not more cost-effective for weight loss than the standard diet in the patient population studied. Larger studies are needed to better assess the cost-effectiveness of dietary therapies for weight loss." @default.
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- W2061624169 date "2005-10-01" @default.
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- W2061624169 title "Cost-Effectiveness of a Low-Carbohydrate Diet and a Standard Diet in Severe Obesity" @default.
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- W2061624169 doi "https://doi.org/10.1038/oby.2005.223" @default.
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