Correlation and linear regression statistical analysis of the comparison between Keeler Letter acuity and Kay Picture acuity tests
| Amblyopic eye VA results comparison | Fellow eye VA results comparison | |
|---|---|---|
| Pearson's r correlation (95% CI) | 0.94 (0.90–0.97) | 0.88 (0.80–0.93) |
| Regression analysis | F(1,56)=444.7, p<0.00001 | F(1,56)=189.3, p<0.00001 |
| Correlation coefficient (slope of linear regression) | 0.98 | 0.86 |
| 95% CI | 0.89 to 1.08 | 0.741 to 0.994 |
VA, visual acuity.