American Journal of Epidemiology Vol. 135, No. 3: 274-280
Copyright © 1992 by The Johns Hopkins University School of Hygiene and Public Health
research-article |
Is Gallstone Disease caused by Obesity or by Dieting?
From the Department of Epidemiology and Biostatistics, Rijksuniversiteit Limburg P.O. Box 616, NL-6200 MD Maastricht, The Netherlands
Reprint requests to Dr. Carel Thijs at this address
The effects of dieting and obesity on the risk of acute gallstone disease were evaluated in a case-control study in Maastricht, The Netherlands, during 19831986. The study comprised 151 cases with acutely symptomatic gallstone disease and 451 population controls. The effects of dieting and obesity as measured by body mass index (weight (kg)/height (m)2) were disentangled in a multivariate logistic regression analysis. Both dieting and body mass index were positively associated with the rate of gallstone disease. The association with dieting largely disappeared when initial body mass index was controlled for (rate ratio = 1.4, 95% confidence interval 0.82.4). Conversely, controlling for dieting did not affect the association between body mass index and gallstone disease. Analysis by risk period (year 1 and 25, 610, and 1115 years prior to interview) did not show consistent risk period-specific effects when initial body mass index was controlled for. The authors conclude that dieting does not account for the association between obesity and gallstone disease. In obese persons, dieting does not increase the risk of acute gallstone disease over the long term. Am J Epidemiol 1992:135:27480.
body weight; cholelithiasis; diet; gallbladder diseases; obesity; risk factors; weight loss
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