Table 4.
Summary of studies by level of anastomosis and overall anastomotic dehiscence (6 trials, 1138 patients)
| Study or subgroup | Drainage (n/N) | No. drainage (n/N) | OR (95 % CI) |
|---|---|---|---|
| Extra-peritoneal | |||
| Brown 2001[37] | 3/31 | 3/31 | 0.50 (0.11, 2.21) |
| Merad 1999 [34] | 8/63 | 8/63 | 1.11 (0.39, 3.14) |
| Subtotal (95 % CI) | 11/94 | 13/97 | 0.85 (0.36, 2.00) |
| Intra-peritoneal | |||
| Hagmuller 1990 [35] | 4/60 | 1/53 | 3.07 (0.51, 18.34) |
| Mennigen 1989 [44] | 1/51 | 1/48 | 0.94 (0.06, 15.27) |
| Merad 1998 [12] | 3/161 | 1/156 | 2.66 (0.37, 19.06) |
| Merad 1999 [26] | 9/184 | 7/176 | 1.24 (0.46, 3.37) |
| Subtotal (95 % CI) | 19/484 | 13/466 | 1.44 (0.71, 2.93) |
| Total (95 % CI) | 30/578 | 26/563 | 1.16 (0.68, 2.01) |
n no. of events, N total no. of patients in study, OR odds ratio, CI confidence interval