Table 3.
Mediator Analysis for Potential Mediators (Measured at Time 2) That Predict CD4 or VL Change
| Mediator | Mediator Alone t | Mediator Controlling for Optimism t | Optimism Controlling for Mediator t | Sobel Test |z| |
|---|---|---|---|---|
| Prediction to CD4 slope | ||||
| Depression | −3.960** | −2.969** | 1.300 | 2.487* |
| Avoidant coping | −3.387** | −2.448* | 1.340 | 2.145* |
| Proactive behavior | 3.383** | 3.054** | 1.675 | 1.987* |
| Prediction to VL (log) slope | ||||
| Depression | 4.055** | 3.379** | −0.876 | 2.714* |
| Avoidant coping | 2.129* | 1.212 | −1.273 | 1.169 |
| Proactive behavior | −1.246 | −0.916 | −1.597 | 0.865 |
Note. VL = viral load.
*
p < .05.
**
p < .01.