In fact, the CDC report states:
"Specifically, the high rates of co-occurring substance use, especially alcohol and marijuana use, among students currently misusing prescription opioids highlights the importance of prevention efforts that focus on general substance use risk and protective factors. Notably, these associations are not limited to high school students because binge drinking and marijuana use are associated with increased prescription opioid misuse among both adults and adolescents..."
According to the data, 21.7% of high schoolers report marijuana use and the most common substances used were alcohol and marijuana. 17.1% of 9th and tenth graders reported marijuana use while 26.6% of eleventh and twelfth graders reported marijuana use.
Furthermore, 43.5% of students who reported currently abusing prescription opioids also reported currently using marijuana.
While use rates of most drugs amongst high schoolers are dropping, marijuana use either remains steady or is increasing, according to the data.