Table 1

Means (SD) or proportions for variables in patients with gall stones and controls, stratified by sex

MalesFemales
Cases (n=54)Controls (n=162)p Value1-150Cases (n=47)Controls (n=141)p Value1-150
Age59.74 (10.75)54.06 (10.61)<0.0158.83 (10.84)53.99 (10.01)<0.01
BMI (kg/m2)28.18 (4.76)27.31 (5.30)0.2831.20 (6.13)28.04 (5.21)<0.01
Diabetes
 Medical history20.4% (5%)7.4% (2%)<0.016.4% (4%)7.8% (2%)0.75
 Medical history or glycaemia ⩾7 mmol/l24.1% (6%)8.6% (2%)<0.018.5% (4%)11.3% (3%)0.58
Glycaemia (mmol/l)6.18 (2.42)5.78 (1.78)0.195.58 (1.38)5.42 (1.40)0.51
Insulin (μIU/ml)8.50 (7.22)7.08 (6.01)0.169.62 (7.00)6.64 (5.55)<0.01
Cholesterol (mmol/l)5.03 (0.98)5.20 (1.07)0.295.45 (1.32)5.11 (1.05)0.08
Cholesterol HDL (mmol/l)1.19 (0.30)1.18 (0.31)0.961.26 (0.32)1.34 (0.30)0.09
Triglycerides (mmol/l)1-160 1.52 (0.73)1.63 (1.34)0.901.69 (1.32)1.26 (0.92)<0.01
  • 1-150 t test for continuous variables, chi-square test for categorical variables.

  • 1-160 t test on the natural logarithmic transformation of the raw values.