From: The "Clubs against Drugs" program in Stockholm, Sweden: two cross-sectional surveys examining drug use among staff at licensed premises
Age (years)
2001
(%)
2007/08
Significancea
χ2 , P
< 25
68.5
56.9
5.12, 0.024
25-29
60.2
53.2
1.36, 0.244
30-39
61.5
50.7
3.00, 0.083
40+
27.9
44.7
3.28, 0.070
Total
60.3
52.7
6.08, 0.014