30 closest matches · ranked by relevance
Cigarette Smoking · Tobacco Use
Primary: Contextual Factors Associated With Tobacco Use Episode Reported Via Ecological Momentary Assessment — 3; 22; 11; 12 tobacco use episodes — p=0.002
E Cig Use
Primary: Spirometry to Measure the Change From Baseline in Forced Vital Capacity (FVC) — 4.42; 3.54; 4.61; 3.68 liter
Toxicant Exposure
Primary: Toxicant Exposure — 40; 97 pg/ml
Tobacco Use Disorder
Primary: Number of Cigarettes Smoked Per Day — 2.2; 1.8; 6.0; 7.1 model estimated cigarettes per day
Biomarkers
Primary: Change in Biomarker Concentrations: Nicotine Equivalents — 74.9; 79.56 mmol/mg creatinine
Smoking · Tobacco Use
Primary: Choices to Smoke — 26.15; 30; 38.33 Percentage of Total Choices
E-Cig Use
Primary: Attention to Specific ad Feature — -1.7062; -0.9676; -1.8238 Beats per minute
Tobacco Use Disorder · Smoking
Primary: Changes in the Number of Cigarettes Per Day (CPD) — 8.2; 7.3 cigarettes per day (CPD)
Smoking · Nicotine Dependence · Nicotine Dependence, Other Tobacco Product
Primary: Uptake of Electronic Nicotine Delivery Systems (ENDS) — 57.14; 32; 13.64 percentage of participants
Smoking · Tobacco Use
Primary: Mean Cigarettes Per Day — 13.1; 12.6; 12.2; 13.3 cigarettes per day
Nicotine Dependence
Primary: Standardized Session: Mean CMax — 6.1; 20.2 ng/mL
Electronic Cigarettes
Primary: Change in Plasma Nicotine — 8.68; 8.28; 9.53; 12.00 ng/ml
Tobacco Use · E-Cigarette Use · Cardiovascular Diseases
Primary: Brachial Artery Flow-Mediated Dilation (FMD)- Pre Challenge — 4.25; 4.89; 5.31 Percent change from resting diameter — p=.494
Smoking Cessation
Primary: Number of Participants Abstinent From Vaping at Week 8 — 9; 6 Participants
Electronic Cigarette Use
Primary: Plasma Nicotine Concentration — 2.00; 1.92; 1.64; 1.62 mg/ml
Tobacco Use
Primary: Percentage of Participants Who Report Daily Use of E-cigarettes or NRT and no Cigarette Use
Tobacco Use
Primary: Combustible Cigarette Use — 3.79; 3.64 Number of cigarettes smoked per day
Cough
Primary: Change in Cough Reflex Sensitivity (Log C5) — -0.29; 0.24 log C5
E-cigarette Use
Primary: Plasma Nicotine Concentration — 0.78; 1.08; 0.89; 1.16 ng/ml
Smoking, Cigarette
Primary: Proportion of Participants With Self-Reported 7-day Point Prevalence Abstinence From Cigarettes — 41; 33 Participants
Tobacco Use
Primary: Tobacco Use at 1 Month — 5; 5 Participants
E-cigarette Use · Vaping
Primary: Participant Recruitment and Retention — 37; 31 Participants
Tobacco Smoking
Primary: Change in Smoking as Assessed by Breath Carbon Monoxide Levels — -18; -4.3 parts per million (ppm)
Health Behavior
Primary: Effects E-cig Use on Venous Nicotine Concentrations Before and 5 Minutes After Use — 4.30; 4.11; 8.66; 8.77 ng/ml
Vaping Behaviors
Primary: Mean Vaping Quit Intentions Score — 2.5; 2.5; 2.2 score on a scale — p=<.001
Smoking · Asthma · Electronic Cigarette Use
Primary: Change in Cigarettes Per Day From Baseline to Week 8 and Week 16 — 16.34; 15.39; 9.51; 8.66 cigarettes per day — p=.004
Tobacco Use
Primary: Number of Cigarettes Purchased — 154.7; 119.2 average number of cigarettes
Cigarette Smoking Behavior
Primary: Nicotine/Tobacco Products Substitution — 1326.25; 206; 120.83; 46.79 mg of nicotine purchased
Electronic Cigarette Use · Smoking, Cigarette · Nicotine Dependence
Primary: Study Feasibility — 15 Participants
Electronic Cigarettes
Primary: Plasma Nicotine Concentration — 12.32; -0.22; 7.09; 5.85 ng/ml