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Table 1 Smoking characteristics in groups of smokers differing in their capability and intention to quit smoking

From: Aiming at Tobacco Harm Reduction: A survey comparing smokers differing in readiness to quit

  Groups of smokers *
  A (n = 94) B (n = 65) C (n = 90) D (n = 152) Entire sample
Duration of smoking (years)
Mean (SD) 8.8 (7.6) 9.3 (6.4) 9.1 (7.4) 9.7 (8.0) 9.3 (7.5)
Smoking status
10–20 cigarettes per day 50 (53%) 38 (58%) 46 (51%) 70 (465) 204 (51%)
20–30 cigarettes per day 29 (31%) 20 (31%) 31 (34%) 52 (34%) 132 (33%)
30–40 cigarettes per day 12 (13%) 5 (8%) 10 (11%) 19 (13%) 46 (11%)
> 40 cigarettes per day 3 (3%) 2 (3%) 3 (3%) 11 (7%) 19 (5%)
Quitting attempts in the past
none 55 (58%) 25 (39%) 61 (68%) 94 (62%) 235 (59%)
1 13 (14%) 15 (23%) 12 (13%) 29 (19%) 69 (17%)
2 10 (11%) 13 (20%) 10 (11%) 18 (12%) 51 (13%)
3 or more 16 (17%) 12 (18%) 7 (8%) 11 (7%) 46 (11%)
  1. *Groups differing in terms of capability and intention to quit smoking
  2. Group A: perceived capability (Y) and intention (Y)
  3. Group B: perceived capability (N) and intention (Y)
  4. Group C: perceived capability (Y) and intention (N)
  5. Group D: perceived capability (N) and intention (N).