Table 1 Participant characteristics by GBC case and gallstone control status.
GBC Cases | Gallstone Controls | |
|---|---|---|
N (%) | 41 (25.9) | 117 (74.1) |
Sex | ||
Male | 11 (26.8) | 38 (32.5) |
Female | 30 (73.2) | 79 (67.5) |
Age at interview | ||
≤ 54 | 4 (9.8) | 18 (15.4) |
55–65 | 13 (31.7) | 32 (27.4) |
≥ 66 | 24 (58.5) | 67 (57.3) |
Highest level of education | ||
None | 15 (36.6) | 38 (32.5) |
Primary/junior middle | 12 (29.3) | 28 (23.9) |
Senior middle | 5 (12.2) | 31 (26.5) |
College/university | 9 (22.0) | 20 (17.1) |
Diabetes mellitus | ||
Yes | 4 (9.8) | 17 (14.5) |
No | 37 (90.2) | 100 (85.5) |
Cigarette smoking pack-years among smokers: mean ± SD | 15.2 ± 14.7 | 26.1.0 ± 19.0 |
Ever-smoking status† | ||
Never | 32 (78.1) | 88 (75.9) |
Current/Former | 9 (21.9) | 28 (24.1) |
BMI 5-years ago: mean ± SD | 24.1 ± 3.1 | 24.4 ± 3.0 |
Ever-drinker status | ||
Yes | 8 (19.5) | 22 (18.8) |
No | 33 (80.5) | 95 (81.2) |
Gallstone status | ||
No gallstones | 7 (17.1) | 0 (0) |
Gallstones | 34 (82.9) | 117 (100) |
