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. Author manuscript; available in PMC: 2013 Jun 25.
Published in final edited form as: JAMA Intern Med. 2013 Apr 22;173(8):624–629. doi: 10.1001/jamainternmed.2013.3746

Table 3.

Multivariate Analysis of Predictors of 30-day Readmissions

Predictors Odds Ratio (95% CI) P value
Successful direct communication 1.08 (0.92-1.26) 0.33
Age 0.97 (0.92-1.03) per decade 0.33
Female 1.05 (0.90-1.22) 0.52
Length-of-stay 1.03 (1.01-1.05) per day <0.001
White Race 1.03 (0.87- 1.21) 0.74
Hospitalist without housestaff 0.94 (0.76-1.15) 0.53
Payor
-Medicaid 1.0 (referent)
-Medicare 0.92 (0.74-1.14) 0.45
-Private 0.98 (0.80-1.20) 0.84
-Other 0.99 (0.63-1.51) 0.97
Expected 30-day readmission rate (%)* 1.67 (1.50-1.86) per 10% <0.001
*

Expected 30-day readmission rate was defined as the observed 30-day same-hospital readmission rate for all patients with a given APRDRG and severity of illness score for patients in the University HealthSystem Consortium database (calculated based on calendar year 2010 data).