Table 1 Baseline characteristics of patients (weighted percentages)

Age (median [Q1–Q3])

88 (86–90)

80 (77–82)

<0.001

Gender female (%)

60.8

53.6

0.086

Admission reason (%)

0.308

● Acute disease

54.4

50.1

● Exacerbation of chronic disease

45.6

49.9

Emergency room origin (%)

94.6

92.4

0.285

Dwelling (%)

0.004

● Community

82

91.5

● Nursing Home

18

8.5

Living with (%)

<0.001

● Partner

16.3

32.4

● Family

51.4

38.2

● Single

9.6

17.6

● Others

22.7

11.8

GP visits during previous month (%)

0.012

● None

48.1

35.9

● One or two

41.7

51.8

● Three or more

10.2

12.3

Admissions during the previous month (%)

0.077

● None

85.2

84.7

● One

14.2

12.5

● Two or more

0.6

2.8

Barthel Index (median [Q1–Q3])

● Basal

60 (35–80)

80 (55–95)

<0.001

● On admission

30 (5–55)

55 (20–70)

<0.001

● On discharge

45 (15–65)

65 (35–80)

<0.001

GDS basal (%)

<0.001

● 1-2

44.1

65.1

● 3-5

41.5

25.0

● 6-7

14.4

9.9

Positive CAM on admission (%)

20.38

11.66

0.004

Failures in Pfeiffer test (median [Q1–Q3])

3 (2–5)

2 (0–4)

<0.001

Charlson Index (median [Q1–Q3])

2 (1–4)

3 (1–4)

0.034

Multimorbidity (%)

67

59.3

0.060

Number of medicines (median [Q1–Q3])

10 (7–13)

10 (7–14)

0.185

Number of medicines (%)

0.400

● 0-4

9.4

6.6

● 5-9

37.5

36.2

● 10 and more

53.1

57.2

Discharged to (%)

<0.001

● Home

66

80.4

● Nursing Home

23.7

12.4

● Another Hospital

0.7

1.2

● Died

9.6

6