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Background: We measured the very short-term change in obesity-related co-morbidities following bariatric surgery. Methods: Claims data were analyzed for 933 patients aged 18-62 who were covered by one of 11 New York State health plans and underwent bariatric surgery during calendar year 2002. Data covered 6 months before to 6 months after surgery. Logit regression and fixed effects logit regressions...
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