Table 1.
Baseline Measures for the Study Sample by Menthol Preference
| Measures | Menthol Preferring Status | Statisticsa | ||
|---|---|---|---|---|
|
| ||||
| Non-menthol Preferring (N = 24)d |
Menthol Preferring (N = 110)d |
Menthol Preference |
||
| Demographics | N (%) | N (%) | Wald | p |
|
| ||||
| Raceb | 65.53 | <.001 | ||
| African-American/Black | 1 (4.17) | 70 (63.64) | ||
| Not of Hispanic Origin | 1 (4.17) | 68 (61.82) | ||
| Hispanic Origin | 0 (0.00) | 2 (1.82) | ||
| Non-African-American | 23 (95.83) | 40 (36.36) | ||
| European American | 23 (95.83) | 38 (34.55) | ||
| Not of Hispanic Origin | 23 (95.83) | 23 (20.91) | ||
| Hispanic Origin | 0 (0.00) | 15 (13.64) | ||
| Native American/American Indian | 0 (0.00) | 1 (0.91) | ||
| Other | 0 (0.00) | 1 (0.91) | ||
| Sex | 1.85 | .174 | ||
| Men | 19 (79.17) | 71 (64.55) | ||
| Women | 5 (20.83) | 39 (35.45) | ||
| Mean (SD) | Mean (SD) | F | p | |
| Age, years | 37.00 (9.95) | 34.56 (9.01) | 1.39 | .241 |
| Body mass index (BMI) | 27.26 (4.70) | 29.59 (6.12) | 3.06 | .082 |
| Weight (lbs) | 181.67 (40.52) | 193.20 (41.70) | 1.52 | .220 |
|
| ||||
| Self-reported Smoking History and Severity | ||||
|
| ||||
| Fagerström Test of Nicotine Dependence (FTND) | 5.04 (2.33) | 5.52 (1.90) | 1.14 | .287 |
| Average cigarette consumption/day | 18.08 (7.34) | 18.15 (10.39) | 0.00 | .975 |
| Age onset regular smoking | 16.33 (2.85) | 16.15 (3.71) | 0.05 | .816 |
| Estimated years of smokingc | 20.67 (9.73) | 18.42 (9.20) | 1.15 | .285 |
|
| ||||
| Biochemical Smoking Indices at Baseline | ||||
|
| ||||
| Expired carbon monoxide (CO) | 5.33 (2.73) | 4.89 (2.51) | 0.60 | .442 |
| Plasma cotinine, ng/ml | 192.30 (90.72) | 200.60 (130.80) | 0.08 | .771 |
| Plasma 3′-hydroxycotinine (3HC) | 83.46 (37.53) | 58.90 (40.95) | 7.29 | .008 |
| Nicotine metabolite ratio (NMR; 3HC/cotinine) | 0.52 (0.31) | 0.32 (0.17) | 18.61 | <.001 |
| Plasma nicotine, ng/ml | 3.27 (4.37) | 2.87 (2.83) | 0.32 | .574 |
Note.
Statistics (F(p) or χ2 or Wald (p) as appropriate, are reported. Results reaching the statistical significance at p ≤ .05 level are considered statistically significant (bold) and reaching p < .10 are considered trend (italics).
The race variable included in analyses was dichotomous (African-American vs non-African-American). Further breakdown of the non-African-American sample by race and both samples by ethnicity (Hispanic or non-Hispanic) are for clarification of the sample but not represented in the statistics.
Estimated years of smoking was derived from age at testing and age of onset of regular smoking and does not account for periods of nicotine abstinence.
Data were available on the full sample with the exception of the following missing data points within the mentholpreferring sample (N = 1 missing bodyweight and BMI; N = 1 missing CO; N = 5 missing NMR).