Table 4 Performance of the Personal Support Algorithm in the derivation and validation datasets
| Â | Explained variance | Coefficient of variation | Ratio of Group 6 to Group 1 means |
|---|---|---|---|
Derivation dataset | |||
 2013 (all LHINs) | 30.8% | 97.6 | 32.1 |
 Stratified by LHIN | 25.7%–41.8% | 81.7–112.8 | 14.6–84.1 |
Validation datasets (in previous years) | |||
 2012 (all LHINs) | 32.2% | 98.6 | 39.2 |
 2011 (all LHINs) | 31.4% | 99.7 | 36.3 |