Self-reported history of intensity of smoking is associated with risk factors for suicide among high school students.

<h4>Objective</h4>To examine the relationship between current cigarette smoking patterns and three established risk factors for suicide using nationally representative data of high school students in the United States.<h4>Methods</h4>We analyzed cross-sectional data from the national Youth Risk Behavior Surveillance Survey (YRBSS)-United States, 2017. Multivariable, logistic regressions examined the association between 3 cigarette smoking behaviors [i.e., past 30-day cigarette (n = 13,731), frequent (n = 1,093) and heavy (n = 880) smoking] and 3 risk factors for suicidal outcomes [feeling sad or hopeless, suicidal ideation, suicide plan] assessed over the previous year.<h4>Results</h4>Among high school cigarette smokers, smoking 11 or more cigarettes per day (i.e., heavy smoking) was associated with 3.43 (95% CI: 1.69, 6.94) greater odds of reporting feeling sad or hopeless, 2.97 (95% CI: 1.60, 5.51) greater odds of reporting suicidal ideations, and 2.11 (95% CI: 1.34, 3.32) greater odds of reporting having ever planned a suicide attempt, controlling for covariates.<h4>Conclusions</h4>Our study shows that it is not simply cigarette smoking, but heavy cigarette smoking that is a risk factor for suicidal outcomes among adolescents.<h4>Public health implications</h4>A comprehensive plan is needed to accommodate heavy adolescent smokers who are at increased suicidal risk.

Abstract licence: CC BY

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