Table 3. Analysis of the Primary End Point With the Subdistributional Fine-Gray Hazard Modela.
Variable | HR (95% CI) | P value |
---|---|---|
Treatment group | ||
No irrigation vs polyhexanide | 1.23 (0.64-2.36) | .54 |
Saline vs polyhexanide | 1.19 (0.74-1.94) | .47 |
Level of contamination | ||
III or IV vs I or II | 1.63 (0.76-3.49) | .21 |
BMIb | ||
18.5-<25 | 1.51 (0.38-5.95) | .56 |
25-<30 | 1.22 (0.31-4.82) | .77 |
≥30 | 1.14 (0.28-4.72) | .86 |
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); HR, hazard ratio.
Surgical site infection was the main event; relaparotomy and death were competing risks; and treatment group, level of contamination, and BMI class were covariates.
Compared to BMI <18.5.