Table 1. Demographic data for ulcerative colitis patients with and without Helicobacter pylori infection.
n: sample size, SD: standard deviation
| Ulcerative colitis without Helicobacter pylori (n=405,491) | Ulcerative colitis with Helicobacter pylori (n=805) | ||
| Mean Age in Years (SD) | 58.35 (19.25) | 59.77 (18.98) | |
| Sex | Male (%) | 181,797 (44.86) | 338 (41.99) |
| Female (%) | 223,442 (55.14) | 467 (58.01) | |
| Race | Caucasian (%) | 256,597 (77.2) | 361 (55.71) |
| Black (%) | 33,699 (10.14) | 127 (19.6) | |
| Hispanic (%) | 25,971 (7.81) | 110 (16.98) | |
| Asian/Pacific Islander (%) | 6,157 (1.85) | 29 (4.47) | |
| Native American (%) | 1,561 (0.47) | 4 (0.62) | |
| Other (%) | 8,388 (2.52) | 17 (2.62) | |