From: An exploratory analysis of the impact of a university campus smoking ban on staff and student smoking habits in Japan
Number of cigarettes smoked per day
n
mean
SD
Abstinent
13
8.9
3.4
Not abstinent
14
15.6
5.9
P=0.001: Student’s t-test
FTND
median
min
max
2
0
4
3
1
8
P=0.029: Mann Whitney U-test