Table 2.
Correlation coefficients among covariates, components of the predictor (Mini PPT and Handgrip strength), and MoCA score
| Age | BMI | TMC | Depression | VF | GR | MM | mPPT | GS | MoCA | |
|---|---|---|---|---|---|---|---|---|---|---|
| Age | 1.00 | −0.076 (0.176) |
0.271 (<.001) |
0.059 (0.288) |
0.296 (<.001) |
0.061 (0.274) |
−0.307 (<.001) |
−0.463 (<.001) |
−0.427 (<.001) |
−0.233 (<0.001) |
| BMI | - | 1.000 | 0.136 (0.016) |
0.080 (0.167) |
0.678 (<.001) |
0.268 (<.001) |
0.293 (<.001) |
−0.163 (0.004) |
−0.029 (0.603) |
−0.018 (0.888) |
| TMC | - | - | 1.000 | 0.153 (0.006) |
0.209 (<0.001) |
−0.011 (0.843) |
0.044 (0.435) |
−0.171 (0.002) |
−0.103 (0.058) |
0.088 (0.109) |
| Depression | - | - | - | 1.000 | 0.100 (0.084) |
0.143 (0.011) |
−0.042 (0.465) |
−0.153 (0.006) |
−0.104 (0.063) |
−0.140 (0.012) |
| VF | - | - | - | - | 1.000 | 0.503 (<.001) |
0.510 (<.001) |
−0.188 (<0.001) |
0.129 (0.021) |
−0.122 (0.030) |
| GR | - | - | - | - | - | 1.000 | 0.439 (<.001) |
−0.128 (0.022) |
0.154 (0.005) |
−0.182 (0.001) |
| MM | - | - | - | - | - | - | 1.000 | 0.188 (<.001) |
0.670 (<.001) |
0.072 (0.204) |
| mPPT | - | - | - | - | - | - | - | 1.000 | 0.403 (<.001) |
0.371 (<.001) |
| GS | - | - | - | - | - | - | - | - | 1.000 | 0.175 (.001) |
| MoCA | - | - | - | - | - | - | - | - | - | 1.000 |
Abbreviations: BMI=body mass index; TMC=total number of medical conditions; VF=visceral fat; GR=girth ratio; MM=muscle mass; mPPT=mini PPT (range: 0–16); GS=grip strength; MoCA=Montreal Cognitive Assessment (range: 0–30).
Notes: Factors found to be significantly (<0.05) associated with physical and cognitive performance were included in linear regression models.