Table 1.
Sociodemographics, Substance Use History, Quit Attempt Characteristics
| Cannabis Group | Tobacco Group | Significance Level | |
|---|---|---|---|
| N | 67 | 54 | - |
| Age | 31.9 (11.2)* | 45.7 (15.3) | < .01 |
| Female | 41% | 60% | < .04 |
| Ethnicity | < .01*** | ||
| Caucasian | 66% | 89% | -- |
| African-American | 30% | 6% | -- |
| Global Symptom Index (from the BSI) | 28 (19, 53) | 21.5 (6, 34) | < .01 |
| Daily Use of Alcohol | |||
| Lifetime | 37% | 37% | -- |
| Current | 3% | 2% | -- |
| Years of cannabis / tobacco use | 12 (8, 27)** | 31.5 (15, 43) | < .01 |
| Frequency of Use | 4.5 (2.8) times / day | 16.8 (8.6) cigarettes / day | --- |
| # of past quit attempts | 3 (2, 6) | 5 (4, 10) | < .01 |
| Longest prior period of abstinence (days) | 60 (10, 248) | 75 (16, 365) | ns |
| % quitting another substance at same time | 24% | 13% | ns |
| # of days from quit date to interview | 18.4 ± 8.6 | 19.0 ± 8.4 | ns |
| # of days abstinent following quit attempt | 9.7 ± 8.4 | 8.0 ± 7.1 | ns |
| Reduced use before quitting (% yes) | 41% | 51% | ns |
| Lapse**** (% yes) | 60% | 83% | < .01 |
| Relapse**** | 30% | 36% | ns |
*
Mean (SD)
**
Median (quartiles) analyzed because of non-normal distribution
***
Reflects Chi-square test result comparing Caucasian vs. All Others including African-American
****
Lapse indicates any use of cannabis or tobacco since the initiation of the quit attempt. Relapse indicates return to daily use