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  • Title: Relationship of serum leptin concentration and other measures of adiposity with gallbladder disease.
    Author: Ruhl CE, Everhart JE.
    Journal: Hepatology; 2001 Nov; 34(5):877-83. PubMed ID: 11679957.
    Abstract:
    Obesity increases the risk of gallstones, especially in women. Most gallbladder disease studies have used body mass index (BMI) as a measure of overall adiposity, although BMI does not distinguish between fat and lean body mass. Central adiposity may also increase gallstone risk, although this is less well studied. Leptin is a peptide whose serum concentration is highly correlated with total body fat mass. We examined the relationship of gallbladder disease with anthropometric measures and serum leptin concentration in a large, national, population-based study. A total of 13,962 adult participants in the Third National Health and Nutrition Examination Survey underwent gallbladder ultrasonography and anthropometric measurements of BMI, body circumferences, and skinfold thicknesses, and a random subgroup of 5,568 had measures of fasting serum leptin concentrations. Gallstone-associated gallbladder disease was defined as ultrasound-documented gallstones or evidence of cholecystectomy. When controlling for BMI and other gallbladder disease risk factors in multivariate analysis, a test for trend for increasing waist-to-hip circumference ratio and risk of gallbladder disease was statistically significant among women (P =.043) and men (P =.007). BMI remained strongly associated with gallbladder disease among women (P <.001), but was unrelated among men (P =.46). Leptin concentration was associated with gallbladder disease in both sexes (P <.001), but not after controlling for BMI and waist-to-hip circumference in either women (P =.29) or men (P =.65). In conclusion, waist-to-hip circumference ratio was related to gallbladder disease among women and men. Serum leptin concentration was not a better predictor of gallbladder disease than anthropometry.
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