TABLE 1

Prevalence of Past 30 Days Smoked Tobacco Use, Marijuana Use, and Overall Tobacco and/or Marijuana Use Among Adults Aged 18 to 22 Years by College Enrollment Status (NSDUH, United States, 2002–2016)

Smoked Tobacco: Overall, % (95% CI)Marijuana Use: Overall, % (95% CI)Smoked Tobacco and/or Marijuana Use, % (95% CI)
200220162002201620022016
College studentsn = 5131n = 3707n = 5131n = 3707n = 5131n = 3707
 Overall37.9 (36.3–39.5)a19.1 (17.5–20.8)a18.0 (16.8–19.3)20.2 (18.5–21.9)↑41.5 (39.8–43.1)a30.6 (28.7–32.6)a
 Sex
  Male42.1 (39.6–44.6)a,b25.0 (22.2–27.8)a,b21.4 (19.4–23.5)b22.6 (19.8–25.3)b46.0 (43.5–48.6)a,b36.1 (33.0–39.1)a,b
  Female34.1 (32.1–36.2)b14.1 (12.2–16.0)a,b15.0 (13.5–16.4)b18.2 (16.1–20.4)b37.4 (35.3–39.5)a,b26.0 (23.5–28.5)a,b
 Race and/or ethnicity
  Non-Hispanic white42.8 (40.9–44.7)a,b23.5 (21.1–26.0)a,b21.4 (19.8–23.0)b22.8 (20.5–25.2)b47.0 (45.1–48.9)a,b35.3 (32.6–38.1)a,b
  Non-Hispanic African American24.4 (20.6–28.3)a,b14.0 (10.5–17.6)a,b11.2 (8.4–14.1)a,b23.3 (18.5–28.2)b26.6 (22.6–30.5)a,b29.3 (24.2–34.3)b
  Hispanic26.7 (20.8–32.5)a,b14.7 (11.1–18.2)a,b9.5 (6.5–12.6)b16.1 (12.3–19.9)b28.9 (23.0–34.8)a,b24.9 (20.6–29.2)a
  Non-Hispanic other31.4 (25.3–37.5)a,b12.9 (8.9–16.8)a,b11.0 (7.4–14.5)b12.7 (8.7–16.7)b33.5 (27.3–39.6)a,b21.3 (16.3–26.3)a,b
 Status
  Full-time36.9 (35.1–38.6)19.3 (17.4–21.1)↓18.1 (16.7–19.4)20.2 (18.3–22.0)↑40.7 (38.9–42.5)30.8 (28.7–33.0)↓
  Part-time43.5 (39.1–47.8)18.6 (15.0–22.2)↓17.8 (14.5–21.0)20.6 (16.5–24.6)↑45.8 (41.4–50.2)29.7 (25.4–34.1)↓
Noncollege individualsn = 6203n = 4502n = 6203n = 4502n = 6203n = 4502
 Overall49.3 (47.7–50.9)a30.7 (29.0–32.5)a18.9 (17.7–20.1)21.6 (20.1–23.2)↑52.5 (50.9–54.1)a39.3 (37.5–41.2)a
 Sex
  Male54.4 (52.2–56.6)a,b34.6 (32.1–37.1)a22.7 (20.9–24.5)25.1 (22.8–27.4)↑58.1 (55.9–60.3)a43.9 (41.3–46.5)a
  Female43.3 (41.1–45.4)a,b25.8 (23.4–28.1)a14.4 (13.0–15.9)17.2 (15.2–19.2)↑45.9 (43.8–48.1)a33.5 (30.9–36.1)a
 Race and/or ethnicity
  Non-Hispanic white57.7 (55.8–59.5)a,b36.7 (34.2–39.2)a22.2 (20.6–23.8)22.6 (20.4–24.8)60.7 (58.9–62.6)a44.4 (41.8–46.9)a
  Non-Hispanic African American37.1 (33.4–40.8)a,b24.2 (20.6–27.8)a17.0 (14.2–19.7)a22.8 (19.2–26.4)↑42.2 (38.5–46.0)a35.0 (30.9–39.0)↓
  Hispanic36.4 (32.7–40.1)a,b22.0 (18.5–25.5)a12.3 (9.9–14.7)19.6 (16.2–23.0)↑38.9 (35.1–42.6)a31.7 (27.7–35.6)a
  Non-Hispanic other48.1 (40.6–55.7)a,b27.3 (21.6–33.1)a17.0 (11.4–22.5)18.2 (13.5–22.8)50.8 (43.3–58.3)a35.0 (28.8–41.2)a
 Education
  Less than high school50.2 (47.7–52.6)b29.1 (26.1–32.1)↓19.9 (18.1–21.8)21.0 (18.2–23.8)53.1 (50.7–55.6)37.2 (34.0–40.5)↓
  High school48.6 (46.2–51.0)b33.8 (31.1–36.6)↓18.4 (16.5–20.2)20.9 (18.5–23.2)↑52.1 (49.7–54.5)42.2 (39.3–45.1)↓
  Some college or more48.6 (44.8–52.3)b27.8 (24.5–31.2)↓17.1 (14.2–19.9)23.5 (20.4–26.6)↑51.6 (47.9–55.4)37.3 (33.7–40.9)↓
  • ↑ indicates prevalence linearly increased during 2002–2016 (P < .05), and ↓ indicates prevalence linearly decreased during 2002–2016 (P < .05). Overall use of smoked tobacco was defined as use of cigarettes and/or cigars (big cigars, cigarillos, and/or little cigars) regardless of marijuana use. Overall use of marijuana was defined as use of marijuana (regardless of the mode of consumption) regardless of smoked tobacco use. CI, confidence interval.

  • a Results are significantly different between college students and noncollege individuals (P < .05).

  • b Responses vary significantly (P < .05) within the assessed demographic subgroups.