Table 4 Descriptive statistics for physical performance measures according to age group (women)
From: Physical performance reference values for Japanese oldest old: a SONIC study
| Â | p | ||||
|---|---|---|---|---|---|
Variables | Mean ± standard deviation | for trend | |||
Overall | Age group | ||||
70 | 80 | 90 | |||
Hand grip strength, kg (n) | 17.5 ± 4.9 (1358) | 19.9 ± 4.8 (513) | 17.1 ± 4.3 (499) | 14.4 ± 4.0 (346) | <  0.001 |
Usual Gait speed, m/s (n) | 0.88 ± 0.23 (1343) | 0.99 ± 0.22 (514) | 0.88 ± 0.21 (495) | 0.72 ± 0.20 (334) | <  0.001 |
5times chair stand, sec (n) | 13.35 ± 5.4 (1263) | 11.7 ± 3.46 (516) | 12.6 ± 3.56 (472) | 17.4 ± 6.27 (273) | <  0.001 |
Tandem balance, sec (n) | 7.53 ± 3.97 (1348) | 9.20 ± 2.46 (521) | 8.23 ± 3.45 (496) | 4.72 ± 4.35 (331) | <  0.001 |
SPPB total score (n) | 9.77 ± 2.3 (1346) | 10.9 ± 1.3 (516) | 10.1 ± 1.9 (497) | 7.5 ± 2.4 (333) | <  0.001 |