Predictors of Incisional Hernia after Robotic Assisted Radical Prostatectomy

Table 4

Differences in incisional hernia rates as measured by odds ratios from logistic regression models.

Variable	Model 1	Model 2
	OR (95% CI)	OR (95% CI)
Prostate weight	1.13 (1.04, 1.22)	1.13 (1.05, 1.22)
(5 gm increases)
Prior cholecystectomy	2.75 (1.03, 7.35)	3.10 (1.17, 8.20)
ASA	1.492 (0.81, 2.74)
BMI category:
Overweight versus normal/underweight	2.16 (0.86, 5.44)
Obese versus overweight	0.88 (0.44, 1.78)
Obese versus normal/underweight	1.90 (0.69, 5.21)

Model 1 contains main effects for prostate weight, prior cholecystectomy, ASA class, and BMI category. Model 2 contains main effects for prostate weight and prior cholecystectomy.
Odds ratios for prostate weight are for a five gram increase. OR = odds ratio; 95% CI = Wald 95% CI from logistic regression.