Lower school grades among depressed adolescents are linked to behavior problems, not their depression, a new study finds.
Researchers examined data from thousands of U.S. teens who were tracked through their middle and high school years and as they moved into early adulthood.
Unlike students with depression, those with behavior problems such as attention issues, delinquency or substance use had lower GPAs than others. The study also found that delinquency and substance use were associated with receiving lesser educational degrees, while depression was not.
Students with two of these problems typically earned lower GPAs and lesser degrees than those with one problem, and some combinations of problems had more harmful effects than others, according to the study, which was published in the December issue of the Journal of Health and Social Behavior.
"Behavior problems including attention issues, delinquency and substance use are associated with diminished achievement, but depression is not," study lead author Jane McLeod, a sociology professor and associate dean at Indiana University, in Bloomington, said in a journal news release.
Source: U.S. News & World Report