Table 1

Characteristics of the study population according the type of unit (acute geriatric vs cardiology)

Acute geriatric unit (n=209)
n (%) or median (P25–P75) (min–max)
Cardiology unit (n=249)
n (%) or median (P25–P75) (min–max)
P value
Hospital0.051
 160 (28.7)46 (18.5)
 262 (29.7)80 (32.1)
 327 (12.9)46 (18.5)
 460 (28.7)77 (30.9)
Age (years)<0.001*
 75–7919 (9.1)78 (31.3)
 80–8473 (34.9)73 (29.3)
 85–8969 (33.0)66 (26.5)
 90–9438 (18.2)28 (11.2)
 95–10010 (4.8)4 (1.6)
Gender—male85 (40.7)141 (56.6)0.001*
Residence before admittance0.001*
 Home178 (85.2)238 (95.6)
 Acute care hospital1 (0.5)0 (0.0)
 Short-term stay in non-acute setting7 (3.3)4 (1.6)
 Nursing home23 (11.0)7 (2.8)
Charlson Age–Comorbidity Index (one missing)7 (5–9) (3–15)7 (5–8) (3–15)0.024*
ADL total score 2 weeks before admittance (one missing)9 (7–13) (1–24)7 (6–9) (0–20)<0.001*
iADL total score 2 weeks before admittance (one missing)3 (1–4) (0–7)5 (3–6) (0–7)<0.001*
Total length of stay (one missing)15 (10–21) (2–65)5 (3–9) (0–34)<0.001*
  • Charlson Age–Comorbidity Index, a combination of age and a measure of comorbidity to predict the risk of mortality, high score=higher risk of dying (21); ADL: evaluation scale for functional independence, range 6–24, high score=high dependency (19); iADL: range 0–7, high score=independency (20).

  • ADLs, activities of daily living; iADLs, instrumental activities of daily living; max, maximum; min, minimum; P25, 25th percentile; P75, 75th percentile.