Depressive symptoms and subclinical markers of cardiovascular disease in adolescents.

PURPOSE: To examine the association between depressive symptoms and subclinical markers of cardiovascular disease (CVD), specifically arterial stiffness, as indexed by pulse wave velocity (PWV), and carotid artery intima media thickening (IMT), in a sample of healthy adolescents, and to explore adolescent hostility as a potential moderator of depression on subclinical markers of CVD.

METHODS

One hundred fifty-seven (n = 157) black and white adolescents between the ages of 16-21 completed a follow-up study of psychosocial stress and cardiovascular risk factors that included measures of PWV and carotid IMT. Psychosocial measures included the Center for Epidemiologic Studies Depression Scale (divided into tertiles), and the Cook-Medley Hostility Inventory subscales. Linear regression models controlled for sociodemographic variables, health behaviors, blood pressure, body mass index, and heart rate.

RESULTS

Results show that more severe depressive symptoms were associated with higher levels of PWV (B = .17, R(2) = .30, ΔR(2) = .03, confidence interval = 2.2-47.0, p = .03) but not with higher IMT. Adolescent depression remained a significant predictor of PWV when controlling for adolescent hostility; hostility did not moderate the relationship between adolescent depression and PWV.

CONCLUSION

Depression may be important in the development of arterial stiffness in adolescence. Further research is needed to delineate the relationship in adolescence and young adulthood between depressive symptoms and the pathogenesis of CVD.