Table 2.
Full and backward regression model with environmental predictors for AL/CR
| N = 3406 | Full regression model | Backward regression model | ||||
|---|---|---|---|---|---|---|
| Estimate | SE | P-value | Estimate | SE | P-value | |
| Outdoor exposurea | − 0.004 | 0.002 | 0.03 | − 0.004 | 0.002 | 0.03 |
| Reading timea | 0.003 | 0.002 | 0.16 | – | – | – |
| Reading distancea | − 0.007 | 0.002 | <0.01 | − 0.007 | 0.002 | <0.01 |
| Watching televisiona | 0.000 | 0.002 | 0.86 | – | – | – |
| Computer usea | 0.002 | 0.002 | 0.30 | – | – | – |
| Books per weeka | 0.005 | 0.002 | 0.05 | 0.006 | 0.002 | <0.01 |
aEnvironmental variables are standardized and adjusted for age, sex and ethnicity
Estimate Beta-coefficient; SE standard error