Cigarette brand-switching: effects on smoke exposure and smoking behavior.

摘要: This study examined the effects of cigarette yield (Federal Trade Commission-determined deliveries nicotine, tar and CO) on both biological exposure to smoke constituents smoking behaviors. Smokers (N = 10) high-yield cigarettes were switched in random order among five different commercially available brands with nicotine yields 0.1, 0.4, 0.7, 1.1 (altered brand) 1.0 (usual mg smoked each type for 5 days while a wide variety assessments performed. Steady-state cotinine CO levels substantially lower after ultra-low (cotinine, 152 ng/ml; CO, 25 ppm) than when usual-brand 252 38 ppm). Both boost (acute exposure) related yield. However, relative between-yield differences all measures smaller predicted from Federal Commission ratings. Substantial yield-related alterations observed behavior. Subjects more took larger closely spaced puffs low- as compared cigarettes. The amount tobacco burned per day was similar across conditions. filter vent-blocking did not appear occur consistent basis. Subjective reports indicated poor acceptability lower-yield We conclude that switching brings about substantial behavior which are at least partially responsible compensation associated these