Table 3:

Risk Factors for Ventral Hernia in Second Year after Surgery

			Univariate			Multivariatea,b
Variable		% with Hernia	Relative Risk	95 % CI	P-value	Relative Risk	95 % CI	P-value
Race	Other	0.0	0	(0–3.5)	1.000
	White	8.3
Diabetes	Present	6.3	0.77	(0.11 – 5.5)	1.000
	Absent	8.1
Nutritional Status	Deficient	10.5	1.4	(0.47 – 4.1)	0.52
	Normal	7.6
Cancer Stage	Late	6.1	0.51	(0.19 – 1.3)	0.24
	Early	12.1
Histology	PS	8.5	1.3	(0.41 – 3.8)	0.78
	Other	6.8
Pathology Grade	3	9.5	4.00	(0.54 –29)	0.20
	1 or 2	2.4
CRS	Sub-optimal	12.5	1.7	(0.52 – 5.7)	0.41
	Optimal	7.3
Fascia closure	Other	10.5	1.5	(0.58 – 4.1)	0.39
	Running	6.8
Chemo Mode	IP	0.0	0	(0–3.0)	1.000
	IV	8.9
Surgical Site Infection	Present	11.1	1.5	(0.36 –6.0)	0.64
	Absent	7.6
Age	≥ 65 yrs	16.4	3.7c	(1.4 – 9.8)	0.014	3.5	(1.3 – 9.4)	0.01
	< 65 yrs	4.5
BMId	Obese	10.6	1.6	(0.62 – 4.3)	0.40
	Non-obese	6.5
EBL	≥ 800 mL	5.8	0.66	(0.19 – 2.2)	0.76
	< 800 mL	8.8

^aModel includes age and adjustment for pathologic grade.

^bThe multivariate analysis column contains empty cells because only variables with p<0.05 on univariate analysis were tested in the model.

^cBolded values represent those significant at p<0.05.

^dObese = BMI ≥ 30 kg/m²; Non-obese = BMI < 30 kg/m²

Abbreviations: CRS = cytoreductive surgery, BMI = body mass index, EBL = estimated blood loss