“…Cross-sectional data also prevented us from measuring changes in depressive symptoms, although other researchers have reported that mood tends to remain stable among HIV-infected patients, even with increased HIV illness severity. 2,3,16 Second, while we did not find a significant problem with collinearity, such findings comparing the clinical significance of depressive and HIV or other physical symptoms need to be interpreted with caution because of the potential for overlap between depressive and physical symptoms. Although we found no significant interaction between depressive symptoms and HIV symptom count, our power to detect such interactions was low.…”