Prevalence and risk factors of gallbladder polypoid lesions in Chinese petrochemical employees

Table 3 Characteristics of the 9828 remaining subjects with and without polypoid lesions of the gallbladders

Variables	With PLG (n = 777)	Without PLG (n = 9051)	P value
Age (yr), ≥ 30/< 30	754/23	8414/637	< 0.001
Sex, male/female	620/157	6332/2719	< 0.001
Smoking	245 (32.7)	2487 (27.5)	0.002
HBsAg positive	96 (12.4)	842 (9.3)	0.005
Alcohol consumption	166 (21.4)	1686 (18.4)	0.061
History of hypertension	140 (18.0)	1615 (17.8)	0.903
History of diabetes	27 (3.5)	428 (4.7)	0.110
Body mass index (kg/m2)	23.2 ± 2.8	23.0 ± 3.0	0.384
Waist circumference (cm)	80.3 ± 8.4	80.0 ± 9.2	0.472
Systolic blood pressure (mmHg)	122.0 ± 14.8	122.2 ± 15.4	0.655
Diastolic blood pressure (mmHg)	77.7 ± 10.0	77.7 ± 9.9	0.992
Total cholesterol (mmol/L)	5.2 ± 1.0	5.3 ± 1.0	0.128
LDL cholesterol (mmol/L)	3.1 ± 0.8	3.1 ± 0.8	0.475
HDL cholesterol (mmol/L)	1.4 ± 0.4	1.5 ± 0.4	0.119
Triglycerides (mmol/L)	1.4 ± 1.0	1.5 ± 1.1	0.490
Fasting blood glucose (mmol/L)	4.8 ± 0.8	4.8 ± 0.8	0.773
Uric acid (μmol/L)	339.0 ± 77.1	336.3 ± 84.5	0.398

Data are expressed as absolute numbers (percentage) or mean ± SD. HBsAg: Hepatitis B surface antigen; LDL: Low-density lipoprotein; HDL: High-density lipoprotein; PLG: Polypoid lesions of the gallbladders.