Metabolic syndrome as a risk factor for gallstone disease

Table 2 Mean differences of continuous variables between cases and controls (mean±SD).

Variable	Cases n=65		Controls n=180		P
Age (yr)	51.6	13.7	45	11.2	<0.0001
Waist (cm)	97	15.6	89.9	13.2	<0.0001
Hip (cm)	105	12.9	99.7	11.6	0.001
Waist to hip ratio	0.92	0.07	0.91	0.14	0.08
Body mass index (kg/m2)	28.4	5.7	26.3	4.8	0.001
% body fat	33.1	7.8	28.8	7.5	<0.0001
Systolic blood pressure (kPa)	15.7	2.2	14.4	1.9	<0.0001
Diastolic blood pressure (kPa)	10	1.36	9.4	1.3	0.002
Glucose (mmol/L)	5.9	2.3	5.3	1.5	0.01
Insulin (mU/mL)	7.1	4.3	6.1	3.9	0.1
Total cholesterol (mmol/L)	5.3	1.2	5.3	1	0.8
HDL-cholesterol (mmol/L)	1	0.3	1.1	0.3	0.35
LDL-cholesterol (mmol/L)	3.3	0.9	3.42	0.9	0.53
Triacylglycerol (mmol/L)	1.9	0.9	1.8	1.2	0.18
Cholesterol/HDL ratio	5.3	1.4	5.1	1.6	0.34
HOMA index	1.9	1.2	1.5	1.5	0.02