Table 1. Baseline Characteristics of the Trial Patients.
| Characteristic | Median (Range) | P Value | |
|---|---|---|---|
| Interval Appendectomy (n = 30) | Follow-up With Magnetic Resonance Imaging and Colonoscopy (n = 30) | ||
| Sex, No. (%) | |||
| Male | 16 (53.3) | 20 (66.7) | .43 |
| Female | 14 (46.7) | 10 (33.3) | |
| Age, y | 49 (18-60) | 47 (22-61) | .81 |
| Duration of symptoms, d | 7 (2-21) | 7 (2-9) | .07 |
| C-reactive protein, mg/L | 145 (30-271) | 166 (55-361) | .09 |
| White blood cell count per μL | 11 700 (6100-20 400) | 14 100 (8800-24 400) | .02 |
| Size of abscess, cm | 5.0 (2.0-9.0) | 5.1 (2.0-11.0) | .57 |
| Drainage of abscess, No. (%) | |||
| Yes | 6 (20.0) | 7 (23.3) | >.99 |
| No | 24 (80.0) | 23 (76.7) | |
| Duration of antibiotic treatment, d | 11.5 (4-23) | 12.0 (7-26) | .50 |
SI conversion factors: To convert C-reactive protein to nmol/L, multiply by 9.524; to convert white blood cells to number ×109/L, multiply by 0.001.