Table 2.

Variables associated with unplanned readmission.

	OR (95% CI)	P value	Adjusted OR (95% CI)	P value
Age	1.02 (0.99–1.04)	.163
Male gender	0.91 (0.36–2.27)	.838
Non-White race	1.67 (0.80–3.48)	.173
Intoxication on admission	1.08 (0.50–2.34)	.841
History of drug and/or alcohol use	1.42 (0.68–2.98)	.356
Substance use disorder	3.75 (1.45–9.69)	.006	3.19 (1.15–8.81)	.025
Other psychiatric disorder	2.25 (1.04–4.88)	.040	1.70 (0.70–4.15)	.241
Charlson Comorbidity Index	1.06 (0.85–1.32)	.623
History of frostbite injury	1.94 (0.64–5.86)	.239
Thrombolytics	1.09 (0.51–2.33)	.819
Amputation	1.45 (0.59–3.56)	.416
Medical discharge disposition
Home or stable housing	1		1
Homeless shelter	7.08 (2.07–24.26)	.002	5.40 (1.53–19.09)	.009
Inpatient psychiatry	0.72 (0.14–3.58)	.683	0.44 (0.08–2.34)	.336
Other healthcare facility	1.82 (0.75–4.41)	.188	1.52 (0.58––3.98)	.392
Against medical advice (to various locations)	1.12 (0.21–5.97)	.891	0.79 (0.14–4.35)	.785

Univariable and multivariable logistic regression.

CI = confidence interval, OR = odds ratio.