Table 1.
Comparison of morbidity and prevalence of primary symptoms of functional bowel disorders in the military stress and control groups n (%)
| Military stress group | Control group | χ2 | P | |
| Disease name | ||||
| Irritable bowel syndrome | 28/452 (6.19) | 16/471 (3.40) | 3.972 | < 0.05 |
| Functional abdominal bloating | 0/452 (0.00) | 0/471 (0.00) | > 0.05 | |
| Functional constipation | 23/452 (5.09) | 20/471 (4.25) | 0.443 | > 0.05 |
| Functional diarrhea | 9/452 (1.99) | 8/471 (1.70) | 0.108 | > 0.05 |
| Non-specific functional bowel disorder | 6/452 (1.33) | 3/471 (0.64) | 1.135 | > 0.05 |
| Total | 66/452 (14.6) | 47/471 (9.98) | 4.585 | < 0.05 |
| Primary symptom (No. of person with symptoms) | ||||
| Nausea | 133/452 (29.42) | 74/471 (15.71) | 24.931 | < 0.01 |
| Vomiting | 74/452 (15.71) | 53/471 (11.25) | 5.849 | < 0.05 |
| Abdominal distension | 145/452 (32.08) | 103/471 (21.87) | 12.230 | < 0.01 |
| Acid regurgitation | 113/452 (25.00) | 64/471 (13.59) | 19.329 | < 0.01 |
| Heartburn | 61/452 (13.50) | 43/471 (9.13) | 4.397 | < 0.05 |
| Foreign body sensation in throat | 85/452 (18.81) | 78/471 (16.56) | 0.800 | > 0.05 |
| Substernal pain | 70/452 (15.49) | 47/471 (9.98) | 6.312 | < 0.05 |
| Hiccough | 135/452 (29.87) | 82/471 (17.41) | 19.899 | < 0.01 |
| Food regurgitation | 101/452 (22.34) | 61/471 (12.95) | 14.068 | < 0.01 |
| Abdominal pain | 31/452 (6.86) | 13/471 (2.76) | 8.483 | < 0.01 |
| Constipation | 142/452 (31.42) | 98/471 (20.81) | 13.492 | < 0.01 |
| Diarrhea | 121/452 (26.77) | 86/471 (18.26) | 9.602 | < 0.01 |
| Encopresis | 15/452 (3.32) | 9/471 (1.91) | 1.808 | > 0.05 |