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Multiple regression analysis with interaction term (adjusted R2 = 0.703).
| Source | Type III Sum of Squares | df | Mean Square | F | p |
|---|---|---|---|---|---|
| Corrected model | 344.983 | 3 | 114.994 | 75.098 | 0.000 |
| Intercept | 43.455 | 1 | 43.455 | 28.379 | 0.000 |
| Age | 26.344 | 1 | 26.344 | 17.204 | 0.000 |
| DPD | 7.691 | 1 | 7.691 | 5.023 | 0.027 |
| Age × DPD | 0.682 | 1 | 0.682 | 0.446 | 0.506 |
| Error | 139.344 | 86 | 1.531 | ||
| Total | 1440.115 | 94 |
df, degree of freedom; F, the ratio of mean square for each factor to that of the error; DPD, difference in pupillary diameter.
