Table 4. Multiple stepwise linear regression analyses with the 6MWT as a dependent variable.
| Independent variables | 6-min walk test | ||||
|---|---|---|---|---|---|
| R2 | Adjusted R2 | R2 change | Unstandardized β coefficient (standard error) | Standardized β coefficient | |
| All participants | |||||
| Model 1 | 0.599 | 0.595 | 145.069 | ||
| SPPB | 26.597 (2.208) | 0.774** | |||
| Model 2 | 0.639 | 0.631 | 10.521 | ||
| SPPB | 18.448 (3.279) | 0.537** | |||
| TUG | −5.080 (1.566) | −0.310* | |||
| Nursing home group | |||||
| Model 1 | 0.690 | 0.684 | 122.484 | ||
| SPPB | 35.738 (3.229) | 0.831** | |||
| Model 2 | 0.717 | 0.707 | 5.235 | ||
| SPPB | 32.258 (3.463) | 0.750** | |||
| Hand-grip strength | 2.784 (1.217) | 0.184* | |||
| Community-dwelling group | |||||
| Model 1 | 0.495 | 0.484 | 0.495 | ||
| TUG | −29.192 (4.216) | −0.703** | |||
**β significance p≤0.01; *β significance p≤0.05. TUG: Timed Up and Go test; SPPB: Short Physical Performance Battery total score