Investigation and Study Results

This research comes from the Department of Epidemiology at Columbia University Mailman School of Public Health. Researchers working on the study focus on former smokers that are older than 18 years.

Also, most of the findings in the study are from the National Survey on Drug Use and Health. This survey has data from 67, 000 people.

The study results show that depression is increasing from 4.88% to 6.04% among former smokers. While at the same time alcohol use is also going up from 17.22% to 22.23%. Lastly, cannabis use is on the rise from 5.35% in 2015 to 10.09% in 2016.

The most important trend from the study shows an increase of non-smokers in the United States. This fact is made clear when we compare the number of smokers in the past two decades. From this survey, we learn that the country had 44.4% of non-smokers in 2002 and 50% in 2016. Also, we discover that most former smokers are white none-Hispanic males with an income of $75,000 a year.

Even though the number of tobacco smokers fell in the past decade other substances use is increasing. This fact in itself is not the problem. However, the researchers suspect that alcohol and cannabis use may reduce the number of non-smokers over time. That is, the scientist suggests that other substances and depression play a role in the relapse trends of former smokers.