Table 4 Multivariate regressions for predictors of hospital mortality, length of stay and 30-day readmission

Provider Group

Traditional-FP

Reference

FP-Hospitalist

0.881 (0.779 – 0.996)

0.043

GIM-Hospitalist

0.355 (0.288 – 0.436)

<0.001

Other-IM

0.490 (0.426 – 0.562)

<0.001

Age

1.025 (1.022 – 1.028)

<0.001

Charlson score

0

Reference

1–2

3.300 (2.816 – 3.868)

<0.001

3 or more

9.417 (8.072 – 10.988)

<0.001

Length of stay

0 – 1 days

2.847 (2.563 – 3.161)

<0.001

2 – 9 days

Reference

10 or more days

1.282 (1.174 – 1.399)

<0.001

Number of interventions

0

Reference

1

0.909 (0.829 – 0.997)

0.044

2 or more

1.278 (1.154 – 1.414)

<0.001

Clinical variable

Odds ratio (95% CI)

p value

Provider Group

Traditional-FP

Reference

FP-Hospitalist

0.766 (0.678 – 0.867)

0.010

GIM-Hospitalist

0.800 (0.675 – 0.948)

0.004

Other-IM

0.831 (0.734 – 0.941)

<0.001

Age

1.005 (1.003 – 1.007)

<0.001

Initial discharge to long-term care facility

0.443 (0.393 – 0.500)

<0.001

Charlson score

0

Reference

1–2

1.474 (1.344 – 1.617)

<0.001

3 or more

2.442 (2.220 – 2.687)

<0.001

Length of stay

0 – 1 days

1.349 (1.228 – 1.482)

<0.001

2 – 9 days

Reference

10 or more days

1.149 (1.051 – 1.257)

0.002

Clinical variable

Ods Ratio (95% CI)

p value

Constant

2.590 (2.077 – 3.103)

<0.000

Provider Group

Traditional-FP

Reference

FP-Hospitalist

0.096 (−0.136 – 0.329)

0.417

GIM-Hospitalist

−2.975 (−3.302 – -2.647)

<0.001

Other IM

−3.592 (−3.829 - -3.355)

<0.001

Charlson score

0

Reference

1–2

0.672 (0.512 – 0.832)

<0.001

3 or more

1.986 (1.816 – 2.157)

<0.001

Age in years

0.058 (0.054 – 0.061)

<0.001

Transfer in from other acute care hospital

0.901 (0.570 – 1.232)

<0.001

Number of interventions

1.997 (1.937 – 2.056)

<0.001

Emergent admit

−0.583 (−0.996 - -0.170)

0.006