Table 3.
Baseline study sample characteristics of e-cigarette (EC) group
| Variable | All | Race/ethnicity | Tobacco use trajectory | |||
|---|---|---|---|---|---|---|
| Mean (SD) or N (%) | Mean (SD) or N (%) | Mean (SD) or N (%) | ||||
| N = 114 | African American n = 60 |
Latinx n = 54 |
Exclusive EC use n = 32 |
Dual EC and cigarette use n = 66 |
Continued cigarette use n = 16 |
|
| Age | 44.6 (12.9) | 51.4 (9.4) | 37.1 (12.1) | 44.4 (13.8) | 43.9 (13.0) | 48.0 (10.6) |
| Sex, % female | 46 (40.4) | 32 (53.3) | 14 (25.9) | 16 (50.0) | 25 (37.9) | 5 (31.3) |
| African American | 60 (52.6) | 16 (50.0) | 35 (53.0) | 9 (56.3) | ||
| Latinx | 54 (47.4) | 16 (50.0) | 31 (47.0) | 7 (43.8) | ||
| Education, ≤ high school | 63 (55.3) | 36 (60.0) | 27 (50.0) | 21 (65.6) | 33 (50.0) | 9 (56.3) |
| Income, ≤ 200% federal poverty level | 83 (74.1)f | 47 (81.0)f | 36 (66.7) | 21 (65.6) | 50 (76.9)g | 12 (80.0)g |
| Marital status, never married | 51 (44.7) | 28 (46.7) | 23 (42.6) | 10 (31.3) | 32 (48.5) | 9 (56.3) |
| Menthol use, % yes | 64 (56.1) | 48 (80.0) | 16 (29.6) | 18 (56.3) | 36 (54.5) | 10 (62.5) |
| Number years smoking | 17.3 (13.1) | 19.3 (13.7) | 15.0 (12.1) | 13.6 (12.0) | 16.8 (12.0) | 26.7 (15.8) |
| Time to first cigarette ≤ 30 min | 81 (71.1) | 43 (71.7) | 38 (70.4) | 22 (68.8) | 47 (71.2) | 12 (75.0) |
| Days smoked/past 7a | 6.8 (0.5) | 6.8 (0.6) | 6.9 (0.4) | 6.8 (0.4) | 6.9 (0.5) | 6.8 (0.5) |
| Cigarettes per day/past 7a | 12.4 (7.9) | 12.3 (7.9) | 12.5 (8.1) | 11.2 (5.5) | 12.4 (7.9) | 14.7 (11.5) |
| Days used EC/past 7a | 0.04 (0.30) | 0.00 (0.00) | 0.07 (0.43) | 0.00 (0.00) | 0.06 (0.39) | 0.00 (0.00) |
| EC times on days used/past 7a | 0.06 (0.51) | 0.00 (0.00) | 0.12 (0.74) | 0.00 (0.00) | 0.10 (0.67) | 0.00 (0.00) |
| Past-year quit attempt, % yesb | 37 (32.5) | 18 (30.0) | 19 (35.2) | 13 (40.6) | 19 (28.8) | 5 (31.3) |
| Relied on friend/family support, % yes | 8 (21.6) | 4 (22.2) | 4 (21.1) | 1 (7.7) | 5 (26.3) | 2 (40.0) |
| Used counseling or other support resources, % yesc | 11 (30.6)g | 6 (35.3)g | 5 (26.3) | 2 (15.4) | 8 (44.4)g | 1 (20.0) |
| Used nicotine patch, gum, inhaler, nasal spray, lozenge or pill, % yes | 7 (18.9) | 2 (11.1) | 5 (26.3) | 2 (15.4) | 3 (15.8) | 2 (40.0) |
| Used Chantix (varenicline) or Zyban (Wellbutrin or bupropion), % yes | 4 (10.8) | 4 (22.2) | 0 (0) | 0 (0) | 3 (15.8) | 1 (20.0) |
| Used a different tobacco product, % yesd | 6 (16.2) | 0 (0) | 6 (31.6) | 2 (15.4) | 4 (21.1) | 0 (0) |
| History of chronic obstructive pulmonary disease, % yes | 10 (8.8)g | 7 (11.9)g | 3 (5.6) | 4 (12.9)g | 4 (6.1) | 2 (12.5) |
| History of asthma, % yes | 29 (25.7)g | 17 (28.8)g | 12 (22.2) | 7 (22.6)g | 18 (27.3) | 4 (25.0) |
| Mental health history, % any historye | 72 (63.2) | 40 (66.7) | 32 (59.3) | 21 (65.6) | 40 (60.6) | 11 (68.8) |
| History of substance abuse, % yes | 58 (50.9) | 29 (48.3) | 29 (53.7) | 15 (46.9) | 32 (48.5) | 11 (68.8) |
Table displays baseline study sample characteristics of the EC group. Variables are reported for all, split by race/ethnicity, and split by tobacco use trajectory
aFrom 7-day timeline follow-back
bDenominator for quit attempt strategies
cOther support resources include a telephone help line or quit line, books, pamphlets, videos, a quit tobacco clinic, class, or support group, and internet or web-based programs
dDifferent tobacco products include e-cigarettes, traditional cigars, cigarillos, filtered cigars, pipe tobacco, hookah, snus pouches, smokeless tobacco (dip, chew, snuff), and dissolvable tobacco
eSelf-reported history of depression, anxiety, PTSD, or schizophrenia
fTwo values missing
gOne value missing