Table 2.
Linear Mixed Effects Model of Longevity Status With Physical Function Performance
| Model 1 Adjusted estimate (95% CI), p-valuea | Model 2 Adjusted estimate (95% CI), p-valueb | |
|---|---|---|
| Gait speed | ||
| Longevity status | −3.44 (−5.82 to −1.06), .005 | −2.92 (−5.25 to −0.59), .014 |
| Time | −1.83 (−2.26 to −1.41), <.001 | −1.82 (−2.24 to −1.40), <.001 |
| Longevity status × Time | −0.26 (−0.80 to 0.29), .351 | −0.28 (−0.82 to 0.26), .307 |
| Unipedal stance | ||
| Longevity status | −0.17 (−0.27 to −0.06), .002 | −0.14 (−0.24 to −0.04), .007 |
| Time | −0.03 (−0.05 to −0.01), .004 | −0.03 (−0.05 to −0.01), .004 |
| Longevity status × Time | −0.03 (−0.05 to −0.00), .035 | −0.03 (−0.05 to −0.00), .026 |
| Repeated chair rise | ||
| Longevity status | 0.81 (0.38 to 1.25), <.001 | 0.70 (0.27 to 1.13), .002 |
| Time | −0.27 (−0.36 to −0.19), <.001 | −0.27 (−0.36 to −0.19), <.001 |
| Longevity status × Time | 0.12 (0.01 to 0.23), .029 | 0.13 (0.02 to 0.24), .020 |
| SPPBc | ||
| Longevity status | −0.44 (−0.73 to −0.17), .002 | −0.38 (−0.65 to −0.11), .006 |
| Time | −0.05 (−0.10 to 0.01), .107 | −0.05 (−0.10 to 0.01), .109 |
| Longevity status × Time | −0.11 (−0.18 to −0.04), .003 | −0.11 (−0.18 to −0.04), .002 |
| Grip strength | ||
| Longevity status | 0.58 (−0.62 to 1.79), .342 | 0.52 (−0.68 to 1.72), .392 |
| Time | −0.27 (−0.56 to 0.02), .070 | −0.26 (−0.55 to 0.03), .076 |
| Longevity status × Time | −0.23 (−0.60 to 0.13), .208 | −0.17 (−0.54 to 0.19), .354 |
Note: CI = confidence interval.
aAdjusted for age and sex.
bAdjusted for age, sex, education and global health summary.
cShort Physical Performance Battery, which is a composite score that includes measures of repeated chair rise and gait speed.