Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Characteristic of the Study Subjects.
| Variables | Cases N (%) | Controls N (%) |
|---|---|---|
| Whole Subjects | 400 (100) | 246 (100) |
| Female | 278 (69.5) | 163 (66.3) |
| Male | 122 (30.5) | 83 (33.7) |
| Age ± SD | 52.65 ± 10.45 | 47.75 ± 10.65 |
| Stages | ||
| 0, I | None | NA |
| II | 21 (5.25) | |
| III | 199 (49.75) | |
| IV | 180 (45.0) | |
| Gallstone present | 200 (50.0) | None |
| Gallstone absent | 200 (50.0) | 246 (100) |
| Tobacco | ||
| No | 273 (68.9) | NA |
| Yes | 123 (31.1) |
NA: not available.
