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. 2002 Jun 15;1(2):121–128. doi: 10.1186/1617-9625-1-2-121

Table 5.

Changes in the smoking profile in the intervention and control groups (quitters excluded)

Examined group Reduced number of cigarettes No change Mean daily reduction in cigarette consumption Mean difference in the daily consumption of cigarettes

n % N % Av. % SD Av. SD
Intervention (n = 82) 75 91.5 7 8.5 60.8 16.0 8.5 4.1
Control (n = 111) 56 50.5 55 49.5 57.1 14.5 7.5 3.9
p value <0.001 0.1 0.09