Table 3. Demographic and life style characteristics of individuals with duodenal ulcer and their controls.
| Factor | With DU | Without DU | Statistical Test | |
| N (%) | N (%) | p – value | ||
| Gender | Men | 38 (76.0) | 456 (47.5) | < 0.001 |
| Women | 12 (24.0) | 505 (52.5) | ||
| Age (year) | 40-49 | 26 (52.0) | 430 (44.7) |
0.757 p- value for trend = 0.286 |
| 50-59 | 12 (24.0) | 242 (25.2) | ||
| 60-69 | 9 (18.0) | 212 (22.1) | ||
| ≥ 70 | 3 (6.0) | 77 (8.0) | ||
| Residence | Urban | 37 (74.0) | 502 (52.2) | 0.003 |
| Rural | 13 (26.0) | 460 (47.8) | ||
| Education | Non | 27 (54.0) | 773 (77.2) |
0.001 p- value for trend < 0.001 |
| Primary | 5 (10.0) | 72 (7.6) | ||
| Secondary | 12 (24.0) | 95 (10.0) | ||
| Graduate/postgraduate | 6 (12.0) | 50 (5.3) | ||
| Marital Status | Married | 48 (98.0) | 820 (85.6) |
0.010 (Fisher’s exact test) |
| Single/ Divorced/widow | 1 (2.0) | 138 (14.4) | ||
| Tobacco | Current smoker | 25 (51.0) | 253 (26.8) | < 0.001 |
| Non smoker | 24 (49.0) | 691 (73.2) | ||
| BMI | < 18.5 | 0 (0) | 12 (1.6) | 0.002 |
| 18.5 – 24.9 | 13 (26.0) | 301 (38.9) | ||
| 25.0 – 29.9 | 32 (64.0) | 288 (37.2) | ||
| ≥ 30 | 5 (10.0) | 173 (22.4) |