Table 2 Hazzard ratio of various models for 30-days re-admission

Age

1.01 (0.99–1.03)

1.01 (0.98–1.02)

1.00 (0.98–1.03)

1.01 (0.98–1.03)

1.00 (0.98–1.02)

Male gender

1.39 (0.95–2.05)

1.35 (0.92–1.99)

1.38 (0.94–2.04)

1.44 (0.97–2.12)

1.41 (0.95–2.08)

Early comprehensive geriatric screen

0.66* (0.45–0.98)

0.66* (0.45–0.97)

0.67* (0.45–0.98)

0.64* (0.43–0.94)

0.64* (0.43–0.95)

Charlson comorbidity index ≥3

1.85* (1.24–2.75)

1.64* (1.09–2.46)

Barthel index score at admission ≤35

1.6* (1.07–2.37)

1.23 (0.80–1.90)

Length of stay ≥10 days

1.53* (1.03–2.27)

1.42 (0.95–2.15)

 1–3 vs 0

1.3 (0.88–1.98)

1.16 (0.76–1.77)

 4+ vs 0

3.6* (1.84–6.87)

2.92* (1.49–5.74)