Table 3. Primary and Secondary End Points Within 6 Months.
| End point | Surgery (n = 41) | Conservative treatment (n = 44) | Effect size (95% CI) | P value |
|---|---|---|---|---|
| Primary outcome | ||||
| MD in GIQLI score between baseline and 6 mo, mean (SD)a | 11.76 (15.89) | −0.2 (19.07) | MD = 11.96 (3.72-20.19) | .005 |
| Secondary outcomes | ||||
| GIQLI score at 6 mob | 114.92 (16.77) | 101.97 (21.74) | MD = 12.95 (3.98-21.92) | .005 |
| SF-36 at 6 mo, median (IQR)c | ||||
| PCS | 51.52 (41.74-55.74) | 42.19 (35.67-53.76) | r = 0.215d | .06 |
| MCS | 55.14 (51.38-57.24) | 47.68 (41.27-56.82) | r = 0.267d | .02 |
| Patients with recurrent episodes of diverticulitis within 6 moe | ||||
| Any | 2 (5%) | 12 (27%) | OR = 8.0 (1.7-38.8) | .004 |
| Hinchey I | 2 (5%) | 12 (27%) | NA | |
| Hinchey IIa | 0 | 0 | NA | |
| Hinchey IIb | 0 | 0 | NA | |
| Hinchey III | 0 | 0 | NA | |
| Hinchey IV | 0 | 0 | NA | |
| Stoma | ||||
| Permanent | 0 | 0 | NAf | >.99 |
| Temporary | 2 (5%) | 0 | NAf | .23 |
| Mortality within 6 mo | 0 | 0 | NAf | >.99 |
Abbreviations: GIQLI, Gastrointestinal Quality of Life Index; MCS, mental component score; MD, mean difference; NA, not applicable; OR, odds ratio; PCS, physical component score; SF-36, 36-Item Short Form Health Survey.
a
Data missing in 4 patients in the surgery group and 9 patients in the conservative treatment group.
b
Data missing in 3 patients in the surgery group and 8 patients in the conservative treatment group.
c
Data missing in 4 patients in the surgery group and 6 patients in the conservative treatment group.
d
Effect size is given here as r = Z/√N without 95% CI.
e
Data missing in 3 patients in the surgery group and 5 patients in the conservative treatment group.
f
Effect size could not be calculated because of a value of zero in one cell.