The first principal component, pca_1, is very strongly correlated with the variable insulin (99.99%), which means that pca_1 is essentially a measure of insulin. The other attributes are only mildly correlated (the correlation coefficients are less than 0.5).
| corr | value |
|---|---|
| pca_1:bmi | 0.111364 |
| pca_1:glucose | 0.478427 |
| pca_1:hdl | 0.00949362 |
| pca_1:insulin | 0.999914 |
| pca_1:age | 0.409505 |
| pca_1:bloodpressure | 0.0123209 |
| pca_1:cigarettes | 0.459847 |
| pca_1:strokes | -0.471619 |