The difference in the number of smoked cigarettes/day between the intervention groups was nonsigni®cant. Of both groups 6.1% (n 4) had smoked 1±10 cigarettes/day, 39.4% (n 26) 11±20 cigarettes/day, 42.4% (n 28)
21±30 cigarettes/day and 31±40 cigarettes/day.
12.1%
(n 8)
had smoked