Table 2.
Time to relapse of appendicitis and total observation time on group basis in patients on primary antibiotic treatment and surgical appendectomy as secondary treatment
| RCT | PBT | Non-R | p< | |
|---|---|---|---|---|
| Days until op | ||||
| Mean | 296 ± 57 | 378 ± 90 | 315 ± 62 | 0.86a |
| Median | 220 | 274 | 152 | 0.20b |
| Range | 681 | 1903 | 1878 | |
| Total observation time without op (days) | ||||
| Mean | 3252 ± 15 | 2264 ± 6 | 1551 ± 26 | |
| Median | 3232 | 2266 | 1570 | |
| Range | 488 | 284 | 1424 | |
Range is the difference between maximum and minimum time in days, between 2 and 3497 days for all 710 patients. Observation time is not compared statistically since patients were recruited during different periods, 2005–2006; 2009–2010; 2010–2013
aTested by ANOVA
bTested by Kruskal–Wallis nonparametric test