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Member Research & Reports

Member Research & Reports

Columbia: Study Reveals Rapid Increases in Cannabis Use among Individuals with Depression

Over the past decade the prevalence of cannabis use in the U.S. increased among persons with and without depression, though the increase is significantly more rapid among those with depression. Also the perception of risks associated with cannabis use declined overall, but has been more rapid among those with depression. Findings come from a survey-based study of 728,691 persons aged 12 years or older.

In 2017, cannabis use was about twice as common among those with depression. Perception of risks associated with cannabis use has appeared to act as a barrier to cannabis use in the general population.

“The prevalence of cannabis use among those with depression who perceived no risk with regular use was much higher than among those who perceived significant risk associated with use – 39 percent versus 1.6 percent, respectively,” said author Dr. Renee Goodwin, of Columbia Mailman University School of Public Health and CUNY. “With increasing legalization in the U.S., previous studies have shown that perception of risk associated with use is declining overall. The results of this study show that this decline is even more rapid among this vulnerable population: those with depression.”

In 2017, the prevalence of past month cannabis use was 19 percent among those with depression and 9  percent among those without depression. Daily cannabis use was common among 7 percent of those with depression and among 3 percent of those without it.

Certain groups appeared more vulnerable to use. Nearly one third of young adults aged 18 to 25 with depression reported past 30-day use. “As brain development is ongoing until at least age 25, and young persons with depression are especially vulnerable, this is a group who may need attention in terms of prevention and intervention,” noted Dr. Goodwin.

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