Table 3.
Phenotypic, genetic and environmental correlations for OA among the five skeletal sites
| DIP | PIP | CMC | Hip | Knee | |
|---|---|---|---|---|---|
| Phenotypic correlation | |||||
| DIP | 1.000 | ||||
| PIP | 0.479 | 1.000 | |||
| CMC | 0.315 | 0.201 | 1.000 | ||
| Hip | 0.069 | 0.075 | 0.034 | 1.000 | |
| Knee | 0.074 | 0.080 | 0.079 | 0.043 | 1.000 |
| Genetic correlation | |||||
| DIP | 1.000 | ||||
| PIP | 0.230 | 1.000 | |||
| CMC | 0.093 | 0.015 | 1.000 | – | |
| Hip | 0.036 | 0.081 | 0.180 | 1.000 | |
| Knee | −0.008 | −0.110 | −0.006 | −0.039 | 1.000 |
| Environmental correlation | |||||
| DIP | 1.000 | ||||
| PIP | 0.201 | 1.000 | |||
| CMC | 0.130 | 0.091 | 1.000 | ||
| Hip | 0.018 | 0.006 | 0.078 | 1.000 | |
| Knee | 0.042 | 0.092 | 0.066 | 0.033 | 1.000 |
The genetic and environmental correlations represent the correlation in additive genetic factors and unique environmental factors, respectively, taken from the AE model.