Table 3.
Associations between anxiety disorders and mean (standard deviation) ages of onset of substance use disorders1
| SP | GAD | PD | AGO | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Present | Absent | t | Present | Absent | t | Present | Absent | t | Present | Absent | t | |
| ALA onset | 21.6 (6.1) |
22.1 (6.9) |
−1.21 | 21.7 (5.6) |
22.0 (6.9) |
−.85 | 20.9 (5.4) |
22.1 (6.8) |
−1.99* | 21.4 (5.2) |
22.0 (6.8) |
−.88 |
| ALD onset | 23.3 (7.1) |
23.4 (6.9) |
−.21 | 23.2 (5.8) |
23.4 (7.2) |
−.26 | 21.3 (5.4) |
23.7 (7.2) |
−2.11* | 22.3 (5.8) |
23.5 (7.1) |
−.84 |
| DRA onset | 19.7 (4.5) |
19.6 (4.7) |
.30 | 19.9 (4.6) |
19.6 (4.6) |
.64 | 19.3 (3.9) |
19.7 (4.7) |
−.56 | 19.5 (3.9) |
19.6 (4.7) |
−.14 |
| DRD onset | 21.0 (5.4) |
21.8 (6.4) |
−.99 | 21.1 (4.8) |
21.6 (6.3) |
−.36 | 19.6 (3.3) |
21.8 (6.4) |
−1.34 | 21.3 (4.3) |
21.5 (6.2) |
.10 |
| Any SUD onset | 20.7 (5.9) |
21.0 (6.6) |
−.90 | 20.6 (5.5) |
21.0 (6.6) |
−.90 | 19.8 (5.1) |
21.0 (6.5) |
−2.04* | 20.2 (4.8) |
20.9 (6.5) |
−1.04 |
*
p<.05.
SP=social phobia; GAD=generalized anxiety disorder; PD=panic disorder; AGO=agoraphobia; ALA=alcohol abuse; ALD=alcohol dependence; DRA=drug abuse; DRD=drug dependence; SUD=substance use disorder.
1
All values and analyses are weighted, as appropriate, and t-values are derived from analyses adjusting for the main effect of sex.