Table 1.
Group Characteristics and Smoking Background
| Never (N) | Lifetime (L) | Past Year (PY, | P.st Month (PM) | P | |
|---|---|---|---|---|---|
|
| |||||
| Demographics: | |||||
| Sample Size | 50 | 52 | 97 | 65 | |
| Age (Yr) | 28.2 (.65) | 27.2 (.58) | 27.4 (.47) | 25.5 (.56) | 0.009 |
| Education (Yr) | 13.2 (.28) | 13.6 (.24) | 14.3 (.21) | 14.0 (.21) | 0.007 |
| Sex (% male)a | 29 (60%) | 20 (38%) | 59 (61%) | 34 (52%) | 0.053 |
| Race: | |||||
| White | 12 (24%) | 27 (52%) | 39 (40%) | 31 (48%) | |
| Black | 32 (64%) | 19 (37%) | 34 (35%) | 16 (25%) | |
| Other | 6 (12%) | 6 (12%) | 24 (25%) | 18 (28%) | <0.001 |
| Ethnicity (% Hispanic) | 4 (8%) | 6 (12%) | 11 (11.3%) | 13 (20.0%) | 0.232 |
| Sexual Orientation (% Heterosexual) | 33 (89%) | 32 (70%) | 47 (64%) | 35 (74%) | 0.162 |
| BDI | 6.8 (1.26) | 9.4 (1.21) | 8.2 (.86) | 7.4 (.82) | 0.401 |
| STAIT | 43.9 (1.30) | 42.5 (1.25) | 43.0 (.94) | 43.0 (1.15) | 0.887 |
| AUDIT | 8.6 1.17) | 7.8 (.85) | 8.6 (.69) | 8.8 (.82) | 0.865 |
| Smoking Patterns and use: | |||||
| Cigarettes smoked per day | 8.4 (.62) | 10.3 (.68) | 9.3 (.56) | 8.7 (.59) | 0.240 |
| FTND | 4.1 (.38) | 4.1 (.28) | 3.9 (.23) | 3.6 (.32) | 0.639 |
| Menthol Preference | 33 (67%) | 38 (73%) | 51 (54%) | 39 (67%) | 0.276 |
| Hours since last reported cigaretteb | 1.8 (.97) | 2.1 (.81) | 2.1 (.71) | 3.8 (1.4) | 0.089 |
| CO (ppm)b | 11.0 (12.0) | 10.0 (10.0) | 11.0 (13.0) | 7.0 (9.0) | 0.015 |
| Baseline Craving: | |||||
| BQSU | 41.5 (1.76) | 40.1 (1.38) | 43.0 (1.11) | 42.3 (1.41) | 0.494 |
| Cigarette Desire | 65.5 (3.56) | 63.0 (2.66) | 63.0 (2.66) | 65.5 (2.69) | 0.858 |
| E-Cigarette Desire | 6.4 (1.82) | 9.3 (2.29) | 9.3 (2.29) | 35.4 (3.31) | <0.001 |
Note. Groups are shown by ENDS use status; never, lifetime, past year, and past month users. Values are Mean (SEM) or N (%), as indicated. Variables were compared between groups with Student’s t test or chi-square as appropriate.
a
Sex assigned at birth, by participant self-report; AUDIT= Alcohol Use Disorders Identification Test.
b
CO and Hours since last reported cigarette values are medians due to non-normal distribution, and compared via Kruskal-Wallis test. CO=Carbon Monoxide; FTND=Fagerström Test for Nicotine Dependence.