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Table 1 Baseline characteristics of participants

From: Effects of first exposure to plain cigarette packaging on smoking behaviour and attitudes: a randomised controlled study

  Brandedn= 64 Mean (SE) Plainn= 64 Mean (SE)
Age 21.09 (0.37) 21.66 (0.46)
Cigarettes smoked per day 10.05 (0.37) 10.14 (0.40)
Years daily smoker 4.42 (0.38) 5.19 (0.50)
Exhaled carbon monoxide* 9.85 (1.05) 9.11 (0.85)
Number of cigarettes smoked previous day 10.23 (0.45) 9.97 (0.46)
Minutes since last cigarette 44.25 (5.16) 59.05 (11.32)
Quit contemplation 4.22 (0.13) 4.28 (0.10)
Questionnaire of Smoking Urges - Brief 34.28 (1.50) 34.55 (1.31)
Fagerström Test of Nicotine Dependence 3.60 (0.22) 3.58 (0.19)
  1. *Two participants in the branded cigarette pack condition did not provide a carbon monoxide sample.