Figure 1:

The association between insomnia categories and the severity of drinking in alcohol use disorder

Footnotes: AUD = Alcohol Use Disorder; Model 1 adjusted for age, gender, race, employment, marital status, living condition, education; Model 2 adjusted for Model1 + depression without insomnia, anxiety without insomnia, lifetime use of psychiatric medications; Model 3 adjusted for Model2 + psychosocial problems; ^a Ordinal Logistic regression was conducted to determine odds of insomnia among problem drinkers vs non-problem drinkers/ per unit increase in intensity of alcoholism. The results are presented as proportional odds ratio (95% CI) as the proportional odds assumption was not violated at alpha=0.05.