Table 2 Baseline demographic and clinical characteristics

 Female

78/122 (63.9%)

120/179 (67.0%)

0.66

 Age

0.99

  60–79

49 (40.2%)

70 (39.3%)

  80–89

56 (45.9%)

82 (46.1%)

  90–100

17 (13.9%)

26 (14.6%)

  Mean (sd)

81.8 (8.2)

81.9 (8.2)

0.85

 Live alone

32/121 (26.4%)

57/173 (32.9%)

0.29

 ADL (0–6), mean (sd)

1.2 (1.6)

1.1 (1.4)

0.52

 IADL (0–8), mean (sd)

5.7 (1.8)

5.4 (2.0)

0.23

 Perceived health as poor

52/104 (50.0%)

65/161 (40.4%)

0.16

 Psychotropic medications

76/112 (67.9%)

93/137 (67.9%)

0.90

 Analgesics (opioid + non opioid)

67/115 (58.3%)

79/143 (55.2%)

0.72

 BMI <21

25/107 (23.4%)

29/135 (21.5%)

0.85

 Number of alarms (range 1–4)

2.1 (0.9)

2.1 (0.9)

0.59

 Cognition

61/122 (50.0%)

88/179 (49.2%)

0.98

 Falls

89/122 (73.0%)

132/179 (73.7%)

0.98

 Social isolation

65/122 (53.3%)

87/179 (48.6%)

0.50

 Frailty of informal caregiver

46/122 (37.7%)

66/179 (36.9%)

0.98

 CA SCORE

  1–5 (mild-moderate frailty)

92/122 (75.4%)

135/179 (75.4%)

0.89

  6–9 (severe frailty)

30/122 (24.6%)

44/179 (24.6%)

 Cardiac disease

51/113 (45.1%)

54/159 (34.0%)

0.08

 Degenerative joint disease

59/113 (52.2%)

97/160 (60.6%)

0.21

 Diabetes

28/109 (25.7%)

34/153 (22.2%)

0.61

 Obstructive pulmonary disease

27/110 (24.5%)

27/156 (17.3%)

0.20

 Cancer

26/112 (23.2%)

39/155 (25.2%)

0.82

 Depression

46/108 (42.6%)

55/158 (34.8%)

0.25

 Dementia

30/110 (27.3%)

39/156 (25.0%)

0.78

 Stroke

19/105 (18.1%)

28/153 (18.3%)

0.90

 Chronic renal failure

19/108 (17.6%)

16/152 (10.5%)

0.14

 Urinary incontinence

47/121 (38.8%)

57/176 (32.4%)

0.31

 Chronic pain

55/87 (63.2%)

75/111 (67.6%)

0.62

 Visual impairment

52/110 (47.3%)

63/157 (40.1%)

0.30