Table 2.

Gender-stratified prevalence of substance use disorder (SUD) treatment need by substance type among adults with SUD, National Survey on Drug Use and Health, 2015-2018 ^a

Substance type for needed SUD treatment b	Total weighted % (95% CI)	Women, weighted % (95% CI)	Men, weighted % (95% CI)	P value c
Alcohol use disorder	74.5 (73.6-75.4)	73.8 (72.5-75.1)	74.9 (73.8-76.0)	.15
Illicit drug use disorder	35.4 (34.4-36.5)	35.3 (33.8-36.7)	35.5 (34.2-36.8)	.79
Opioid use disorder	10.6 (10.0-11.3)	11.9 (10.8-12.9)	9.9 (9.2-10.7)	.002

^aIncludes men and women who met Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) criteria for SUD. ¹⁷ Data source: National Survey on Drug Use and Health, 2015-2018. ¹⁶

^bFewer than 2% (1.6%) of people classified as having an SUD expressed a past-year need for SUD treatment but did not meet DSM-IV criteria for SUD; as such, they were not asked the SUD type questions.

^cDifferences were assessed using the Pearson χ² test, with significance set at α = .05.