Table 4.
Older and younger age groupings
| Study | Age groups in study | Younger group (N) | Older group (N) |
|---|---|---|---|
| Takaoa | <40 41–60b >60 |
<40 (58) | >60 (17) |
| Pescatori | <45 >45 |
<45 (123) | >45 (33) |
| Dayton | <55 >55 |
<55 (423) | >55 (32) |
| Chapmanc | <45 46–55b >55 |
<45 (1688) | >55 (65) |
| Delaneyc, d, e | <45 46-55b 56-65 >65 |
<45(1323) | >55 (168) |
| Sun Hoc, d | <30 30-49 50-69 >70 |
<50 (227) | >50 (103) |
| Lewisc | <50 >50 |
<50 (18) | >50 (18) |
| Bauerc | <50 >50 |
<50 (326) | >50 (66) |
| Tanc, d | <50 >50 |
<50 (199) | >50 (28) |
| Total | 4327 | 513 |
aOutcomes compared: anorectal physiology, patient satisfaction, incontinence scoring system, otherwise excluded in analysis
bPatient group excluded as spanning cut-off
cStudies included in sensitivity analysis
dStudies included in 65 ± 5 analysis
eStudies with >10 years follow-up