Table 5.

Survey-Weighted Logistic Regression Models to Examine Correlates of Complication Outcomes Among Patient- and Provider-Level Covariates (Adjusted for Diversion Type)

Characteristics	Medical Complications, OR (95% CI)				Surgical Complications, OR (95% CI)			Disposition Other Than Home, OR (95% CI)	Postoperative Death, OR (95% CI)
	Any	Cardiovascular	Respiratory	Any	Bowel	Urinary	Wound
Patient characteristics
Age, y [vs <55]
55–64	1.25 (0.99–1.58)	3.71 (1.81–7.62)	1.34 (0.97–1.86)	0.98 (0.79–1.23)	1.07 (0.82–1.39)	1.32 (0.57–3.06)	1.08 (0.60–1.97)	1.14 (0.92–1.41)	2.54 (0.54–12.0)
65–74	1.54 (1.18–2.01)	7.86 (4.01–15.9)	1.13 (0.78–1.64)	1.02 (0.81–1.29)	1.04 (0.78–1.37)	1.23 (0.56–2.73)	1.41 (0.68–2.93)	1.55 (1.23–1.96)	3.68 (0.82–16.5)
≥75	2.24 (1.69–2.97)	12.9 (6.53–25.5)	1.31 (0.89–1.94)	1.08 (0.85–1.37)	1.16 (0.86–1.56)	1.18 (0.53–2.61)	1.34 (0.61–2.95)	2.64 (1.99–3.40)	7.86 (1.75–35.4)
Female sex	1.20 (1.03–1.40)				0.69 (0.58–0.83)			1.31 (1.11–1.55)
Nonwhite race	0.92 (0.73–1.17)	0.60 (0.39–0.92)	0.83 (0.61–1.12)					0.88 (0.69–1.12)
Insurer [vs private]
Medicare	1.08 (0.93–1.26)	1.08 (0.84–1.39)	1.39 (1.06–1.84)	1.26 (1.05–1.53)	1.20 (0.97–1.48)		1.20 (0.71–2.01)	1.19 (0.98–1.44)	2.24 (1.04–4.81)
Medicaid/other	1.03 (0.77–1.38)	1.07 (0.64–1.79)	1.16 (0.79–1.68)	0.87 (0.65–1.17)	0.93 (0.67–1.29)		1.29 (0.58–2.86)	1.03 (0.79–1.36)	0.98 (0.20–4.82)
Comorbid conditions
Congestive heart failure	4.77 (3.54–6.45)	4.30 (3.27–5.66)	2.88 (2.16–3.83)	1.35 (1.06–1.72)	1.16 (0.89–1.50)	1.60 (0.76–3.38)	1.15 (0.64–2.04)	1.67 (1.20–2.31)	5.08 (3.20–8.05)
Valvular disease	1.51 (1.09–2.09)	2.40 (1.68–3.44)	1.25 (0.85–1.83)					1.31 (0.91–1.89)
Pulmonary circulation disease	1.65 (0.68–3.97)	2.33 (0.95–5.71)			1.52 (0.72–3.24)
Peripheral vascular disease		1.33 (0.92–1.91)			0.76 (0.54–1.06)				0.17 (0.02–1.23)
Paralysis	1.95 (1.13–3.35)			1.48 (0.87–2.52)
Chronic pulmonary disease	1.65 (1.43–1.90)	1.34 (1.10–1.64)	2.62 (2.21–3.11)	1.17 (1.02–1.35)	1.16 (0.98–1.36)		1.56 (1.12–2.18)	1.33 (1.13–1.57)	1.87 (1.21–2.88)
Hypothyroidism				0.82 (0.61–1.12)	0.62 (0.44–0.89)			0.94 (0.70–1.27)
Renal failure	2.15 (0.78–5.94)	1.56 (0.57–3.92)						2.50 (0.96–6.53)	1.30 (0.26–6.40)
Liver disease			3.28 (1.38–7.78)						5.67 (0.91–35.2)
Rheumatoid arthritis/CVD		1.48 (0.78–2.80)	0.38 (0.13–1.12)	0.54 (0.31–0.92)	0.55 (0.28–1.08)
Coagulopathy	2.57 (1.67–3.94)	2.25 (1.38–3.65)	1.98 (1.25–3.14)	2.50 (1.69–3.70)	1.28 (0.85–1.93)
Obesity	1.57 (1.05–2.34)	0.79 (0.44–1.41)	2.05 (1.18–3.57)	0.86 (0.60–1.24)	0.79 (0.52–1.21)		1.31 (0.59–2.93)
Weight loss	5.57 (3.86–8.04)	1.80 (1.15–2.82)	2.96 (2.04–4.29)	5.40 (3.68–7.95)	4.75 (3.35–6.73)	2.00 (0.93–4.30)	3.30 (2.00–5.46)	1.76 (1.18–2.62)	2.12 (1.05–4.25)
Deficiency anemia	1.57 (1.23–1.83)			0.69 (0.56–0.85)		1.75 (1.01–3.05)	0.49 (0.26–0.92)	1.26 (1.02–1.55)	0.40 (0.15–1.10)
Alcohol abuse	1.53 (1.01–2.32)								2.86 (0.89–9.20)
Psychoses			1.34 (0.66–2.71)					2.10 (1.09–4.07)
Depression	12.9 (8.15–20.5)		20.1 (5.75–42.5)		0.77 (0.51–1.16)
Provider characteristics
Hospital type [vs urban teaching]
Urban nonteaching	1.11 (0.95–1.30)	0.91 (0.75–1.11)	1.12 (0.91–1.38)	1.23 (1.03–1.48)	1.14 (0.94–1.38)	1.59 (1.02–2.49)	1.33 (0.97–1.82)	1.18 (0.93–1.50)	0.84 (0.51–1.40)
Rural	0.94 (0.69–1.29)	0.88 (0.63–1.24)	0.83 (0.55–1.22)	1.11 (0.87–1.43)	0.91 (0.66–1.27)	2.04 (0.89–4.67)	1.29 (0.74–2.11)	0.98 (0.72–1.34)	1.33 (0.68–2.61)
High-volume hospitala	0.98 (0.82–1.16)		0.85 (0.69–1.05)	1.01 (0.84–1.22)					0.59 (0.37–0.97)

OR indicates odds ratio; 95% CI, 95% confidence interval; CVD, collagen vascular disease.

^aBased on 90th percentile hospital volume or >14 cases over the study period.