Table 5 Quintiles of physical performance measures for 90 years old

Hand grip strength (kg)

mean

n = 344

ADL

IADL

mean

n = 346

ADL

IADL

5

(Highest)

28.0 < =

98.0

10.3

17.5 < =

96.9

11.2

4

25.0–27.9

97.3

11.0

15.5–17.4

96.1

10.2

3

24.1

22.5–24.9

98.3

10.6

14.4

13.0–15.4

96.6

10.6

2

19.5–22.4

98.8

11.1

11.0–12.9

96.0

11.2

1

(Lowest)

<  19.5

96.8

9.7

<  11.0

93.3

8.9

Usual gait speed (m/s)

n = 336

n = 334

5

(Highest)

1.00 < =

0.88 < =

4

0.83–0.99

0.77–0.87

3

0.80

0.72–0.82

0.72

0.68–0.76

2

0.63–0.71

0.54–0.67

1

(Lowest)

<  0.63

<  0.54

Tandem balance (s)

n = 335

n = 331

5

(Highest)

10 < =

10 < =

4

10 < =

7.2–9.9

3

5.9

4.0–10.0

4.7

1.9–7.1

2

0.1–3.9

0.1–1.8

1

(Lowest)

0

0

5times chair stand (s)

n = 313

n = 273

5

(Highest)

<= 12.3

<= 12.7

4

14.6–12.4

15.0–12.8

3

17.2

17.0–14.7

17.4

18.0–15.1

2

21.0–17.1

21.9–18.1

1

(Lowest)

21.0 <

21.9 <

SPPB total score

n = 336

n = 333

5

(Highest)

10 < =

98.8

11.1

10 < =

98.0

11.8

4

9

98.9

11.0

8–9

97.7

10.9

3

8.3

8

98.6

10.5

7.5

7

96.6

10.1

2

7

96.5

9.5

6

93.9

9.3

1

(Lowest)

<= 6

94.7

9.0

<= 5

90.8

8.8