Source
|
Medical users (N=277)
|
Misusers (N=522)
|
p-valuea
|
---|
|
n (%)
|
95%CI)
|
n (%)
|
95%CI
| |
---|
Peers (student community)
|
6 (2.3)
|
0.9-5.0
|
199 (41.5)
|
37.0-45.9
|
<0.0001
|
General practitioner
|
99 (38.1)
|
32.1-44.0
|
113 (23.5)
|
19.8-27.6
|
<0.0001
|
Friends / acquaintances
|
7 (2.7)
|
1.1-5.5
|
75 (15.6)
|
12.5-19.2
|
<0.0001
|
Sibling / other family member
|
6 (2.3)
|
0.9-5.0
|
57 (11.9)
|
9.1-15.1
|
<0.0001
|
Parents
|
9 (3.5)
|
1.6-6.5
|
50 (10.4)
|
7.8-13.5
|
0.0009
|
Internet
|
3 (1.2)
|
0.2-3.3
|
45 (9.4)
|
6.9-12.3
|
<0.0001
|
Neurologist / psychiatrist
|
220 (84.6)
|
79.6-88.8
|
39 (8.1)
|
5.8-10.9
|
<0.0001
|
Theft (drug/prescription)
|
3 (1.2)
|
0.2-3.3
|
7 (1.5)
|
0.6-3.0
|
1.00b
|
Other
|
6 (2.3)
|
0.9-5.0
|
19 (4.0)
|
2.4-6.1
|
0.2
|
- 95%CI: Clopper-Pearson confidence interval
- a Chi-square test, b Fisher’s exact test (25% of the cells have expected counts less than 5)