Table 1 Summary statistics by each group

Robust (N = 225)

M

SD

1

2

1

social participation

3.21

0.64

―

2

subjective health

2.84

0.46

0.55^**

―

3

age

70.44

4.31

0.08

0.14^*

Pre-frailty (N = 675)

M

SD

1

2

1

social participation

2.95

0.75

―

2

subjective health

2.68

0.56

0.53^**

―

3

age

70.61

4.76

0.17^**

0.11^*

Frailty (N = 164)

M

SD

1

2

1

social participation

2.62

0.79

―

2

subjective health

2.38

0.54

0.56^**

―

3

age

70.73

4.83

0.17^*

0.07