Table 2.
Baseline characteristics of ulcerative colitis patients n (%)
| Total (n = 130) | Delayed (n = 32) | Non-delayed (n = 98) | P value | |
| Age at diagnosis (± SD) | 38.9 ± 15.5 | 36.9 ± 13.2 | 39.6 ± 16.1 | 0.395 |
| Male, | 71 (54.6) | 17 (53.1) | 54 (55.1) | 0.845 |
| Family history | 7 (5.4) | 2 (6.3) | 5 (5.1) | 0.803 |
| Symptom to diagnosis1, d | 73.0 (35.0-186.5) | 635 (360.5-1219) | 50.5 (31.0-90.0) | 0.000 |
| Symptom to visit1, d | 57.5 | 409.5 | 37.0 | 0.000 |
| (27.0-147.8) | (197.3-1183) | (15.8-70.0) | ||
| Visit to diagnosis1, d | 7.00 (3.0-17.0) | 10.0 (3.0-28.5) | 6.00 (3.0-16.3) | 0.215 |
| Smoking | 26 (20.2) | 6 (18.8) | 20 (20.6) | 0.819 |
| Chief complaints | 0.55 | |||
| Hematochezia | 87 (66.9) | 20 (62.5) | 67 (68.4) | |
| Diarrhea | 31 (23.8) | 10 (31.3) | 21 (21.4) | |
| Abdominal pain | 9 (6.9) | 2 (6.3) | 7 (7.1) | |
| Others | 3 (2.3) | 0 (0) | 3 (3.1) | |
| Location | 0.594 | |||
| Proctitis | 52 (40.3) | 12 (38.7) | 40 (40.8) | |
| Left sided | 37 (28.7) | 11 (35.5) | 26 (26.5) | |
| Pancolitis | 40 (31.0) | 8 (25.8) | 32 (32.7) | |
| Mayo score at diagnosis | 5.60 ± 1.98 | 5.38 ± 1.95 | 5.67 ± 1.99 | 0.460 |
| Severity2 | 0.748 | |||
| Remission (0-2) | 2 (1.5) | 1 (3.1) | 1 (1.0) | |
| Mild (3-5) | 53 (40.8) | 14 (43.8) | 39 (39.8) | |
| Moderate (6-10) | 74 (56.9) | 17 (53.1) | 57 (58.2) | |
| Severe (11-12) | 1 (0.8) | 0 (0) | 1 (1.0) | |
| CRP at diagnosis, (± SD) | 1.82 ± 3.88 | 1.85 ± 3.96 | 1.82 ± 3.88 | 0.970 |
1
The duration was expressed as median (interquartile range);
2
The severity was classified according to the Mayo score.