Table 1 Characteristics of the participants

Social-demographic

 Age (years, Mean ± SD)

80.40 ± 5.9

79.16 ± 5.6

80.28 ± 6.4

80.79 ± 5.9

0.287

 Gender (n,%)

  Male

31 (30.1%)

4 (21.1%)

5 (27.8%)

22 (33.3%)

0.573

  Female

72 (69.9%)

15 (78.9%)

13 (72.2%)

44 (66.7%)

 Marital status (n,%)

  Married

14 (14%)

2 (10.5%)

3 (16.7%)

9 (13.6%)

0.075

  Single

43 (43%)

12 (63.2%)

5 (27.8%)

26 (39.4%)

  Divorced

4 (4%)

2 (10.5%)

1 (5.6%)

1 (1.5%)

  Widower

39 (39%)

2 (10.5%)

9 (50.0%)

28 (42.4%)

  Missing

3 (2.9%)

1 (5.3%)

-

2 (3%)

 Living arrangement (n,%)

  Live alone

45 (45%)

10 (52.6%)

7 (38.9%)

28 (42.4%)

0.571

  Missing

3 (2.9%)

1 (5.3%)

-

2 (3%)

 Education status (n,%)

  Do not know to read and to write

3 (3%)

-

1 (5.6%)

2 (3%)

0.774

  Read and write, but no studies

15 (15%)

2 (10.5%)

3 (16.7%)

10 (15.2%)

  Primary studies

64 (64%)

12 (63.2%)

11 (61.1%)

41 (62.1%)

  Secondary studies

14 (14%)

4 (21.1%)

3 (16.7%)

7 (10.6%)

  University studies

4 (4%)

-

-

4 (6.1%)

  Missing

3 (2.9%)

1 (5.3%)

-

2 (3%)

 Economic status (n,%)

  Own income

74 (75.5%)

10 (52.6%)

15 (83.3%)

49 (74.2%)

0.819

  Missing

5 (4.9%)

2 (10.5%)

-

3 (4.5%)

Frailty status (n,%)

 Frail

27 (26.2%)

3 (15.8%)

7 (38.9%)

17 (25.8%)

0.277

 Pre-frail

76 (73.8%)

16 (84.2%)

11 (61.1%)

49 (74.2%)