Table 1.
Phenotype characteristics of individuals post-cholecystectomy, gallstone carriers, and controls.
| PCE (n = 580) | Controls (n = 580) | p-value | |
|---|---|---|---|
| (a) | |||
| Age (years) | 64.0 (55.0–72.0) | 64.0 (55.0–71.0) | 0.994 |
| Female sex (%) | 66.7 | 68.6 | 0.530 |
| BMI (kg/m2) | 29.7 (26.7–33.4) | 29.6 (26.2–32.6) | 0.460 |
| Smoking (%) | 13.6 | 13.8 | 1 |
| FFS | 15.0 (13.0–17.0) | 15.0 (13.0–17.0) | 0.825 |
| GC (n = 404) | Controls (n = 404) | p-value | |
|---|---|---|---|
| (b) | |||
| Age (years) | 60.0 (51.0–69.0) | 60.0 (50.0–68.0) | 0.373 |
| Female sex (%) | 60.9% | 62.1% | 0.772 |
| BMI (kg/m2) | 29.0 (26.4–32.2) | 29.2 (26.2–32.6) | 0.749 |
| Smoking (%) | 20.3% | 19.1% | 0.723 |
| FFS | 15.0 (13.0–17.0) | 14.0 (12.0–17.0) | 0.171 |
Age, BMI and FFS are given as median (1st–3rd quartile). Female sex and smoking are stated as percentages. All numbers were rounded to one decimal place. BMI body mass index, FFS food frequency score, GC gallstone carriers, PCE individuals post-cholecystectomy, n number of cases. Statistical significance was assessed by Mann–Whitney test or Fisher's exact test for continuous or binary variables, respectively.