Table 4.
Significant parameter estimates (and variance explained) in Level 2 conditional models for parent-rated PCS
| Measure |
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| PCS-I total symptoms |
HBI cognitive symptoms |
HBI somatic symptoms |
|||||||
| Predictors | Intercept | Linear change |
Quadratic change |
Intercept | Linear change |
Quadratic change |
Intercept | Linear change |
Quadratic change |
| Complicated Mild TBI vs. OI |
.86*
(1.5%) |
5.00**
(6.0%) |
17.86**
(12.1%) |
−29.26**
(18.5%) |
1.99*
(5.2%) |
||||
| Uncomplicated Mild TBI vs. OI |
−3.31**
(7.9%) |
3.95*
(8.5%) |
−7.53**
(8.6%) |
8.18**
(5.3%) |
|||||
| Race | |||||||||
| SES | |||||||||
| Age at Injury | −.20** | ||||||||
| Premorbid PCS-I symptoms |
.58** | ||||||||
| Premorbid HBI Cognitive symptoms |
.66** | ||||||||
| Premorbid HBI Somatic symptoms |
.48** | .68* | |||||||
| Cognitive Ability | −.04**
(3.4%) |
−.08**
(7.9%) |
|||||||
| Complicated Mid TBI vs. OI × Cognitive Ability |
−.28**
(0.2%) |
−1.29**
(6.0%) |
2.28**
(11.6%) |
||||||
| Uncomplicated Mild TBI vs. OI × Cognitive Ability |
|||||||||
Note. PCS-I = Postconcussive Symptom Interview; HBI = Health and Behavior Inventory; TBI = traumatic brain injury; OI = orthopedic injury.
**
p<.01,
*
p<.05.