Table 3. Prevalence of Cannabis Use Characteristics by Reason for Cannabis Use Among Primary Care Patients Who Used Cannabis.
| Participants, % (95% CI) | |||
|---|---|---|---|
| Medical use onlya | Nonmedical use onlya | Both reasons for usea | |
| Mode of useb | |||
| Smoke | 18.9 (2.2-35.5) | 46.2 (31.2-61.3) | 74.1 (64.6-83.7) |
| Vape | 8.7 (3.3-14.2) | 38.1 (21.5-54.6) | 41.5 (33.7-49.2) |
| Dab | 3.3 (1-5.5) | 4.3 (2-6.7) | 9.5 (7.3-11.6) |
| Eat | 33.8 (14.5-53.1) | 61.9 (45.8-78) | 41.9 (34.4-49.5) |
| Drink | 7.2 (1.9-12.6) | 6.8 (2.6-11) | 16.1 (10.5-21.8) |
| Apply | 61.3 (43-79.5) | 13 (5.6-20.3) | 46.3 (39.1-54.4 |
| Other | 11 (1-20.9) | 5.1 (0.0-14.2)c | 2.1 (0.4-3.8) |
| Modes of use, mean (SD) | 1.5 (1.3-1.7) | 1.8 (1.5-2.1) | 2.3 (2.2-2.4) |
| Primary mode of useb | |||
| Inhalation (smoke, vape, dab) | 25.5 (9-42.1) | 59.5 (43.5-75.6) | 69.4 (60.4-78.5) |
| Ingestion (eat, drink) | 26.8 (10.3-43.3) | 37.5 (21.8-53.3) | 18.3 (11.3-25.3) |
| Application (lotions, ointments) | 36.1 (21.2-51) | 0.6 (0.0-1.5)c | 11.1 (4.9-17.3) |
| Other (sublingual, lozenge) | 11.4 (1.5-21.3) | 2.3 (−3.2-7.9) | 0.6 (0.0-1.4)c |
| Typical d/wk of useb,d | |||
| <1 | 17.7 (1.7-33.7) | 27.2 (14.2-40.2) | 8 (3.1-12.8) |
| 1-3 | 24.9 (6.8-42.9) | 39.3 (23.5-55.1) | 20.2 (13.3-27) |
| 4-7 | 57.4 (41-73.8) | 33.5 (20.5-46.5) | 71.8 (63.7-79.9) |
| Typical times/d of useb,d | |||
| <1 | 12.1 (0.0-26.0)c | 12.3 (2.4-22.2) | 2 (0.5-3.4) |
| 1-2 | 83.4 (69.3-97.5) | 73.7 (63.7-83.7) | 58.3 (47.6-69.0) |
| ≥3 | 4.5 (2.0-7.0) | 14 (8.7-19.4) | 39.7 (28.8-50.6) |
| Frequency of past year use | |||
| <Monthly | 12.5 (2.8-22.2) | 20.1 (3.3-36.9) | 5.4 (0.8-10) |
| Monthly | 32.8 (19.4-46.3) | 18.2 (9.3-27.1) | 10.3 (5.3-15.3) |
| Weekly | 15.8 (9-22.6) | 36.6 (23.7-49.4) | 28.2 (21.2-35.2) |
| Daily or almost daily | 38.8 (23.9-53.8) | 25.2 (14.1-36.3) | 56.1 (48.3-64) |
a
Percentages and 95% CIs calculated from unadjusted survey data weighted for sampling and nonresponse rates for eligible primary care sample.
b
Pearson χ2 test of independence.
c
Estimates of confidence intervals were not bound at 0; negative values were truncated at zero.
d
Patients are provided the option to indicate other, which is undefined, when choosing among 1 or more race categories at appointing or check-in. Patients who indicated more than 1 race are reported as multiracial.