TABLE 2.
LTL in relation to age
| Variable | Estimate ± se | df | T | P |
|---|---|---|---|---|
| Children | ||||
| Intercept | 9.290 ± 0.576 | 65.0 | 16.12 | <0.0001 |
| Average age | −0.0681 ± 0.0311 | 65.0 | −2.19 | 0.032 |
| Delta age | −0.0407 ± 0.0024 | 65.0 | −17.09 | <0.0001 |
| Parents | ||||
| Intercept | 8.174 ± 0.716 | 102.46 | 11.41 | <0.0001 |
| Average age | −0.0181 ± 0.0142 | 102.57 | −1.28 | 0.204 |
| Delta age | −0.0203 ± 0.0022 | 98.37 | −9.19 | <0.0001 |
Children (n = 134 observations on 67 individuals). Parents (n = 203 observations on 104 individuals). Average age is the mean age at which individuals were sampled. For each sampling point, Delta age is the difference between average age and age at sampling. Delta age yields the estimate for longitudinal effects of age on LTL. Average age is not significant for parents, but is retained in the model for consistency.