From: Attitudes towards complementary and alternative medicine in chronic pain syndromes: a questionnaire-based comparison between primary headache and low back pain
Non-CAM
CAM
p value
Never drinking alcohol; n (%)
19 (20.7)
173 (33.8)
n.s
Non-smoker; n (%)
47 (50.5)
374 (73.2)
< .001
Sports
-never; n (%)
-once or more a week; n (%)
31 (36.5)
54 (63.5)
142 (29.5)
340 (70.5)