Table 3.

Univariate and Multivariate Models Predicting 30-Day Readmission

	Univariate Model			Mulitvariate Model
Parameter	OR	95% CI	p	OR	95% CI	p
Age	1.02	0.93–1.18	.63	0.99	0.90–1.09	.91
Gender
Men	Ref	Ref		Ref	Ref	.29
Women	0.43	0.13–1.39	0.16	0.50	0.14–0.78
Marital status
Married	Ref	Ref		Ref	Ref	.53
Not married	1.12	0.34–3.73	0.84	1.55	0.38–6.22
Mobility status prior to admission
Did not use assistive device	Ref	Ref		Ref	Ref	.84
Used cane or walker	1.73	0.53–5.62	0.36	1.25	0.95–1.61
ADL limitation(s) prior to admission
None	Ref	Ref		Ref	Ref	.83
Any	1.24	0.31–4.97	0.75	1.18	0.25–5.52
Charlson Comorbidity Index	1.23	0.99–1.67	0.05	1.25	0.21–1.65	.11
Length of hospital stay	1.05	0.83–1.33	0.64	0.97	0.74–1.28	.86
Mean daily steps post discharge*	0.85	0.72–0.99	0.04	0.85	0.71–1.02	.08

Notes: OR = odds ratio; CI = confidence intervals; ADL = activities of daily living.

*OR and CI are presented for 500-step intervals.