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Body mass index levels, based on Chinese standards, among participants with gallbladder polyps, gallstones, or gallstones and gallbladder polyps, compared with participants without gallbladder disease. Yellow indicates BMI in obesity range; purple indicates BMI in overweight range; green indicates BMI in normal weight range; orange indicates BMI in underwent range. *P < 0.001.
BMI, body mass index; n.s., not significant.
