From: Cigarette and waterpipe smoking among adult patients with severe and persistent mental illness in Bahrain: a comparison with the National Non-communicable Diseases Risk Factors Survey
Number
Mean
Std. deviation
p value
Male
SPMI
51
30.5
19.7
<0.0001
NNDRFS
224
19.4
12.5
Female
5
23.0
16.4
0.170
11
10.2
7.2
Both sexes
56
29.8
19.5
235
18.9