From: Effectiveness of computer-tailored Smoking Cessation Advice in Primary Care (ESCAPE): a Randomised Trial
OR
% increase in cessation rate
Sample
% power
Lower 1.26
3.75
4350
25
5800
33
7250
40
8700
47
Middle 1.42
4.21
54
67
77
84
Upper 1.61
4.74
83
92
97
99