Table 2.
Final logistic regression model of functionally limiting aerobic capacity (VO2 peak<20ml* kg−1* min−1) on Physical Performance Test, Mini-Mental State Exam (MMSE) and demographics in the group without dementia.
| Logistic Coefficient b (SE) | p-value | Odds Ratio | 95% CI of Odds Ratio | -2 Log-Likelihood Ratio | Model chi square | |
|---|---|---|---|---|---|---|
| Constant | −13.83 (0.24) | 0.34 | 96.12 | |||
| Gender | −2.04 (0.62) | 0.001 | 0.13 | 0.04 – 0.44 | 85.09 | 11.04 |
| Age | 0.17 (0.05) | 0.002 | 1.18 | 1.06 – 1.31 | 74.08 | 22.05 |
| PPT | ns | 0.29 | ||||
| MMSE | ns | 0.49 |
Overall prediction accuracy 80.0%. Nagelkerke Rsqr = 0.36. The model does not change with mini-PPT sig. of MMSE p=0.56 and mini-PPT p=0.29.
Predictor variable are shown in the order of entry. -2 log-likelihood and chi square represent omnibus model statistics with entry of each predictor variable.
SE = Standard Error
*
ns – variable not selected for the final model.