Problem gambling is linked to poor quality of life. Past research shows that problem gamblers have increased rates of suicidal thoughts, attempts, and completed suicides. It is unknown whether these suicidal behaviours are a part of problem gambling, a complication of problem gambling, or a result of other existing psychiatric or addictive disorders. Researchers examined the rate of suicidal thoughts, attempts, and completions in problem gamblers. They compared these rates to non-problem gamblers. Past research also shows that problem gambling runs in families. Therefore, the researchers also examined the rates and odds of suicidal thoughts, attempts, and completions in the first-degree relatives (i.e., offspring, siblings, and parents) of problem and non-problem gamblers.