Respondent characteristics of young adults from the 2017 and 2018 Behavioral Risk Factor Surveillance System surveys
| Characteristic | No. of nonusers n = 28 563 | Weighted proportion of nonusers (95% CI)* | No. of cannabis users n = 4610 | Weighted proportion of cannabis users (95% CI)* | Standardized difference† |
|---|---|---|---|---|---|
| Sex, male | 13 850 | 49.3 (48.2–50.5) | 2897 | 62.9 (60.4–65.3) | 0.3 |
| Race | 0.2 | ||||
| White | 18 762 | 48.2 (47.2–49.3) | 2957 | 47.5 (45.1–50) | |
| Black | 2275 | 10.5 (9.9–11.2) | 433 | 14.6 (12.7–16.6) | |
| Hispanic | 4593 | 29.3 (28.3–30.3) | 682 | 26.6 (24.2–29) | |
| Other | 2215 | 10.4 (9.6–11.2) | 343 | 8.7 (7.1–10.2) | |
| Multiracial | 718 | 1.6 (1.4–1.8) | 195 | 2.6 (2.0–3.2) | |
| Age group, yr | 0.3 | ||||
| 18–24 | 4696 | 21.8 (20.8–22.8) | 1174 | 29.3 (27.0–31.6) | |
| 25–34 | 10 210 | 37.2 (36.1–38.3) | 1955 | 42.5 (40.1–45.0) | |
| 35–44 | 13 657 | 41.0 (39.9–42.0) | 1481 | 28.2 (25.9–30.5) | |
| Body mass index category | 0.2 | ||||
| Underweight | 495 | 2.1 (1.7–2.5) | 124 | 2.5 (1.8–3.1) | |
| Normal weight | 9559 | 34.8 (33.7–35.8) | 1940 | 43 (40.5–45.5) | |
| Overweight | 9508 | 33.5 (32.5–34.6) | 1445 | 32.3 (29.9–34.6) | |
| Obese | 9001 | 29.6 (28.6–30.6) | 1101 | 22.3 (20.2–24.4) | |
| Highest education level | 0.2 | ||||
| Some high school | 1717 | 12.6 (11.8–13.5) | 342 | 11.8 (9.8–13.7) | |
| Completed high school | 7113 | 27.3 (26.3–28.3) | 1376 | 29.8 (27.5–32.1) | |
| Some college | 8235 | 32.2 (31.2–33.3) | 1496 | 38.4 (35.9–40.9) | |
| Completed college | 11 498 | 27.9 (27.0–28.7) | 1396 | 20.1 (18.4–21.7) | |
| Annual household income, $ | 0.1 | ||||
| < 15 000 | 2667 | 11.9 (11.1–12.6) | 544 | 12.7 (11.1–14.3) | |
| 15 000–25 000 | 4165 | 15.5 (14.7–16.3) | 861 | 16.7 (14.9–18.5) | |
| 25 000–35 000 | 2787 | 10.3 (9.6–10.9) | 544 | 10.9 (9.4–12.5) | |
| 35 000–50 000 | 3738 | 12.4 (11.6–13.1) | 695 | 13.6 (11.9–15.3) | |
| > 50 000 | 15 206 | 50.0 (48.9–51.1) | 1966 | 46.1 (43.5–48.6) | |
| Marital status | 0.5 | ||||
| Unmarried | 11 429 | 46.4 (45.3–47.5) | 2939 | 68.0 (65.6–70.4) | |
| Married | 14 029 | 44.1 (43–45.2) | 1167 | 23.5 (21.3–25.6) | |
| Divorced | 2231 | 6.3 (5.8–6.8) | 368 | 5.9 (4.9–7.0) | |
| Widowed | 176 | 0.5 (0.4–0.6) | 28 | 0.4 (0.1–0.7) | |
| Separated | 698 | 2.7 (2.4–3.0) | 108 | 2.3 (1.5–3.0) | |
| Jurisdiction-level cannabis legalization status | 0.2 | ||||
| Recreational and medical use | 4391 | 44.0 (43.2–44.8) | 1225 | 54.6 (52.3–56.9) | |
| Medical use only | 16 932 | 37.8 (37.1–38.5) | 2484 | 31.5 (29.4–33.6) | |
| Limited medical use only | 7240 | 18.2 (17.8–18.7) | 901 | 13.9 (12.6–15.2) | |
| Current health coverage | 24 932 | 85.5 (84.7–86.3) | 3733 | 82.6 (80.8–84.4) | 0.1 |
| Combustible cigarette use | 0.5 | ||||
| None | 19 265 | 71.7 (70.8–72.7) | 1798 | 46.7 (44.2–49.2) | |
| Current | 4376 | 13.2 (12.5–13.9) | 1770 | 31.6 (29.2–33.9) | |
| Former | 4922 | 15.1 (14.3–15.8) | 1042 | 21.8 (19.8–23.8) | |
| Current smokeless tobacco user | 1616 | 3.7 (3.4–4.0) | 365 | 5.8 (4.5–7.1) | 0.1 |
| E-cigarette use | 0.9 | ||||
| None | 21 001 | 73.5 (72.6–74.5) | 1400 | 33.0 (30.7–35.4) | |
| Current | 1470 | 5.1 (4.6–5.6) | 886 | 18.1 (16.1–20.0) | |
| Former | 6092 | 21.4 (20.5–22.3) | 2324 | 48.9 (46.4–51.4) | |
| Current heavy alcohol drinker‡ | 1691 | 5.2 (4.7–5.7) | 862 | 17.4 (15.5–19.4) | 0.4 |
| Sedentary lifestyle§ | 5684 | 20.2 (19.3–21.1) | 789 | 16.7 (14.7–18.6) | 0.1 |
| Kidney disease | 346 | 1.3 (1.0–1.5) | 59 | 1.3 (0.7–1.8) | 0.001 |
| Diabetes | 976 | 3.5 (3.0–3.9) | 124 | 2.4 (1.6–3.2) | 0.1 |
| Skin cancer | 356 | 0.9 (0.7–1.1) | 54 | 0.8 (0.5–0.12) | 0.01 |
| Blind | 613 | 2.9 (2.6–3.3) | 173 | 3.3 (2.5–4.2) | 0.1 |
Note: CI = confidence interval.
↵* Weighted proportions and 95% confidence intervals were calculated in consideration of the complex sampling design of the Behavioral Risk Factor Surveillance System survey.
↵† Standardized difference values greater than 0.1 are considered clinically significant.
↵‡ Heavy alcohol drinker defined as > 14 drinks per week for males, and > 7 drinks per week for females.
↵§ Sedentary lifestyle defined as no reported physical activity or exercise during past 30 days other than regular job.