Table 2.

Multivariate analysis of factors associated with mortality of patients with colovesical fistula who underwent operation.

Variables		Adjusted odd ratio	95% confidence interval	P values
Age	Age > 70 years	5.68	0.58–55.33	0.13
Sex	Female	1.47	0.17–12.23	0.72
Comorbidity	End stage renal disease on dialysis	1.01	0.90–1.10	0.99
	Congestive heart failure	1.02	0.89–1.11	0.99
	Moderate or severe dyspnea	1.01	0.91–1.11	0.99
	Chronic obstructive pulmonary disease	7.03	0.55–89.43	0.13
	Hypertension	0.15	0.005–4.86	0.28
	Smoking	0.53	0.03–7.75	0.64
	Diabetes	1.01	0.90–1.10	0.99
	Hypertension	0.71	0.06–6.24	0.65
	Chronic steroid use	3.52	0.22–56.42	0.37
	Weight loss	18.14	0.46–702.55	0.12
Body mass index	<30	Reference	Reference	—
	30–39.9	1.02	0.90–1.12	0.99
	40≤	1.01	0.92–1.11	0.99
Other factors	Operation longer than 3 hours	0.92	0.90–1.10	0.99
	Mechanical bowel preparation	0.18	0.02–1.45	0.10
	The American Society of Anesthesiologists (ASA) score more than two	1.01	0.90–1.11	0.99
	Preoperative leukocytosis > 10,000 mm3	1.17	0.08–16.42	0.90
	Preoperative sepsis	1.10	0.98–1.12	0.99
	Serum albumin less than 3 g/dL	1.45	0.17–12.41	0.73
	Chemical bowel preparation	0.41	0.02–5.92	0.51
	Minimally invasive approach vs. open	1.71	0.23–12.27	0.59