| Baseline | Randomization | Treatment Choice | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Baseline I | Baseline II | Step 1 | Step 2 | Step 3 | Step 4 | Step 5 | |||||
Study Week Number | 0 | 1 | 2 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 25 | 33 |
Study Day | 1 | 8 | 15 | 22 | 43 | 64 | 85 | 106 | 127 | 148 | 176 | 232 |
Study Visit Number | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
Measures/Questionnaires | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Tobacco and marijuana use and daily cigarette loga | Â | X | X | X | X | X | X | X | X | X | X | X |
Concomitant medicationsa | Â | X | X | X | X | X | X | X | X | X | X | X |
Adverse eventsa [39] | Â | X | X | X | X | X | X | X | X | X | X | X |
Demographics | X | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Tobacco use history, cigarette detailsa | X | X | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
NIDA drug use (past 3 mo) [40] | X | Â | Â | Â | Â | Â | X | Â | Â | X | Â | Â |
Environmental smoke questionnaire [41] | Â | X | Â | X | X | X | X | X | X | X | X | X |
Perceived Health Risk | Â | X | Â | X | Â | Â | X | Â | Â | X | Â | Â |
Cigarette Liking Scale [42] | X | X | X | X | X | X | X | X | X | X | Â | Â |
X | X | X | X | X | X | X | X | X | X | X | X | |
Minnesota Nicotine Withdrawal Scale [25] | X | X | X | X | X | X | X | X | X | X | X | X |
X | X | Â | X | X | X | X | X | X | X | X | X | |
 | X |  | X |  | X |  | X |  | X |  |  | |
X | Â | Â | Â | Â | Â | X | Â | Â | X | X | X | |
CES-D[52] | X | Â | Â | Â | Â | Â | X | Â | Â | X | X | X |
X | X | Â | X | X | X | X | X | X | X | X | X | |
OASIS (anxiety) [24] | X | X | Â | X | X | X | X | X | X | X | X | X |
QIDS (depression) [23] | X | X | Â | X | X | X | X | X | X | X | X | X |
Perceived Stress Scale [55] | X | X | Â | X | X | X | X | X | X | X | X | X |
Clinical COPD questionnaire [56] | Â | X | Â | X | X | X | X | X | X | X | X | X |
Menthol [57] | Â | X | X | X | X | X | X | X | X | X | X | Â |
X | Â | Â | Â | Â | Â | Â | Â | Â | X | Â | Â | |
X | Â | Â | Â | Â | Â | Â | Â | Â | X | Â | Â | |
Smoking cessation (if chosen by participant) [29] | Â | Â | Â | Â | Â | Â | Â | Â | Â | X | X | X |
NRT disbursement (if chosen by participant) | Â | Â | Â | Â | Â | Â | Â | Â | Â | X | X | Â |
Biomeasures/Proceduresb | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Weight [62] | X | X | X | X | X | X | X | X | X | X | X | X |
Height [62] | X | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Waist hip ratio [62] | X | Â | Â | Â | Â | Â | Â | Â | Â | X | Â | Â |
Exhaled CO [63] | X | X | X | X | X | X | X | X | X | X | X | X |
X | X | X | X | X | X | X | X | X | X | X | X | |
Pulmonary function (spirometry) [65] | X | X | Â | Â | X | Â | Â | X | X | X | X | X |
Urine collection | Â | X | Â | X | X | X | X | X | X | X | X | Â |
Pregnancy test | X | Â | Â | X | Â | X | Â | X | Â | X | X | X |
Blood collection for biomarker analysis | Â | X | Â | X | X | X | X | X | X | X | X | Â |
Payment | $40 | $80 | $40 | $80 | $80 | $80 | $80 | $80 | $80 | $80 | $80 | $40+ compliance |