TABLE 3.
No. of studies analysed | Incidence in TCS group* | Incidence in control group* | Relative risk or mean difference (95% CI)** | |
---|---|---|---|---|
Primary outcome: AWD | ||||
Intention-to-treat missing | 7 | 1.7% (27/1,565) 105 |
2.8% (40/1,430) 109 |
0.70 (0.44–1.11) a |
As-treated† missing | 7 | 1.7% (26/1,562) 104 |
2.9% (41/1,432) 110 |
0.67 (0.41–1.07) a |
Per-protocol‡ missing | 7 | 1.5% (23/1,492) 42 |
2.9% (40/1,402) 52 |
0.58 (0.34–0.99) a |
Secondary outcomes | ||||
Incisional SSI missing | 7 | 10.3% (163/1,576) 94 |
13.8% (198/1,439) 100 |
0.80 (0.67–0.97) a |
Skin dehiscence missing | 3 | 10.4% (83/797) 91 |
11.6% (94/810) 100 |
0.94 (0.69–1.27) a |
Hospital stay (days)§ median, IQR missing |
7 | 12 (9–19) 75 |
12 (9–17) 78 |
2.76 (2.72–2.81) b |
All-cause reoperation¶ (30 days) missing | 6 | 9.7% (158/1,623) 63 |
8.4% (125/1,490) 57 |
1.18 (0.93–1.48) a |
All-cause mortality (30 days) missing | 6 | 1.2% (19/1,625) 0 |
1.9% (28/1,491) 0 |
0.67 (0.38–1.19) c |
* Based on crude IPD.
** Missing data at participant level were imputed.
† According to the suture that was actually used during surgery. One participant received both TCS, and control suture and was excluded from the as-treated analysis.
‡ According to the as-treated principle and excluding participants that were reoperated for any reason other than AWD.
§ Presented as median and interquartile range and analysed using bootstrapping because of a non-normal data distribution.
¶ Three participants from one trial deceased within 30 days after surgery and data on reoperation were not available. These data were not imputed.
Variables included in the model:
gender, age, procedure type, type of surgery, diabetes mellitus
no adjustment
gender, age, procedure type, diabetes mellitus.
Bold indicates statistically significant results