Table 2.
Substance use characteristics by drug use category – United States.2015–2018.
| Characteristic | Weighted % (95 % CI) | ||
|---|---|---|---|
| Opioid use (N = 1511) | Methamphetamine use (N = 1081) | Opioid and Methamphetamine use (N = 397) | |
| Past year heroin use | 35.4 (32.1–38.6) | NA | 68.3 (61.0–75.6)a |
| Past year injection needle use | 19.9 (17.7–22.1) | 16.0 (13.0–19.1)c | 46.2 (38.5–53.9)a,d |
| Past year other illicit drug usee | 75.9 (73.6–78.3) | 71.6 (68.9–74.4)c | 87.7 (82.8–92.6)a,d |
| Alcohol abuse or dependence | 23.0 (19.9–26.0) | 25.5 (21.6–29.4) | 31.2 (25.5–37.0)b |
| Past month cigarette use | 68.9 (65.0–72.9) | 73.6 (70.0–77.1) | 81.1 (73.7–88.6)b |
| Past month marijuana use | 44.6 (40.8–48.4) | 50.8 (46.3–55.2)c | 55.9 (48.1–63.7)c |
| Past year treatment for illicit drug use | 17.1 (14.6–19.7) | 13.1 (10.4–15.7)c | 27.8 (22.3–33.2)a,d |
NA = not applicable.
All estimates are adjusted for age, sex, income, education rural vs. urban residence, race/ethnicity, and housing instability in the past year.
Opioid use is defined as any past year heroin use or misusing prescription pain relievers 4 or more times in the past month. Methamphetamine use is defined as any past year methamphetamine use.
a
P≤.0.001 compared to “Opioid use”.
b
P≤.0.01 compared to “Opioid use”.
c
P≤.0.05 compared to “Opioid use”.
d
P≤.0.001 compared to “Methamphetamine use”.
e
Other illicit drugs include cocaine, hallucinogens, inhalants, prescription stimulants, sedatives, or tranquilizers but does not include marijuana.