Table 11. Model parameters assessing the impact of air quality (AQI) on the baseline mixed-effects model assessing the effects of Year, Load, SES, LookingWindow1 and Age cohort on the first look change measure.
| Variable | Estimate | Std. Error | DF | t value | Pr(>|t|) |
|---|---|---|---|---|---|
| (Intercept) | 0.589 | 0.054 | 612.30 | 10.944 | <0.001 |
| Year | –0.030 | 0.013 | 967.10 | –2.395 | 0.017 |
| Load1 | 0.000 | 0.009 | 847.40 | –0.008 | 0.994 |
| Load2 | 0.002 | 0.009 | 848.30 | 0.182 | 0.855 |
| SES | 0.002 | 0.002 | 205.30 | 1.105 | 0.270 |
| LookingWindow1 | 0.062 | 0.065 | 626.90 | 0.952 | 0.341 |
| Age | –0.018 | 0.014 | 189.50 | –1.275 | 0.204 |
| AQI | 0.000 | 0.000 | 185.80 | 1.263 | 0.208 |
| Year:AQI | –0.001 | 0.000 | 968.20 | –1.402 | 0.161 |