Table 4.
Prevalence of criteria and clinical characteristics of individuals with GAD-NSUD and GAD-SUD
| GAD clinical symptoms and correlates | GAD-NSUD1 N=918 | GAD-SUD N=839 | Wald F | p value | Wald F | p value | ||
|---|---|---|---|---|---|---|---|---|
| Mean | S.E. | Mean | S.E. | |||||
| Number of criteria | 4.94 | 0.04 | 4.94 | 0.04 | 0.00 | 0.9966 | 0.33 | 0.5684 |
| Diagnostic Criteria | % | S.E. | % | S.E. | OR | 95% CI | AOR2 | 95% CI |
| Restlessness or feeling keyed up or on edge | 92.45 | 1.20 | 92.42 | 1.07 | 1.00 | (0.61–1.63) | 0.97 | (0.59–1.59) |
| Being easily fatigued | 84.18 | 1.41 | 80.93 | 1.51 | 0.80 | (0.60–1.05) | 0.92 | (0.67–1.26) |
| Difficulty concentrating or mind going blank | 90.05 | 1.22 | 93.28 | 0.99 | 1.53 | (1.01–2.33) | 1.75 | (1.11–2.77) |
| Irritability | 83.49 | 1.54 | 86.85 | 1.59 | 1.31 | (0.92–1.86) | 1.27 | (0.87–1.85) |
| Muscle tension | 63.73 | 2.14 | 61.74 | 1.99 | 0.92 | (0.71–1.19) | 1.04 | (0.79–1.35) |
| Sleep disturbance | 80.46 | 1.47 | 79.21 | 1.90 | 0.93 | (0.70–1.23) | 0.87 | (0.65–1.18) |
| Associated Clinical Characteristics | ||||||||
| Associated Autonomic symptoms | 68.42 | 2.02 | 70.31 | 1.85 | 1.09 | (0.85–1.40) | 1.30 | (0.98–1.72) |
| Associated cardiovascular symptoms | 42.61 | 1.99 | 47.89 | 2.00 | 1.24 | (0.99–1.55) | 1.33 | (1.04–1.71) |
| Associated Respiratory symptoms | 40.94 | 2.10 | 44.84 | 2.01 | 1.17 | (0.93–1.47) | 1.34 | (1.04–1.74) |
| Associated gastrointestinal symptoms | 55.34 | 2.07 | 55.12 | 2.03 | 0.99 | (0.78–1.26) | 1.10 | (0.83–1.45) |
| Urinary symptoms | 30.34 | 1.67 | 30.29 | 2.06 | 1.00 | (0.78–1.28) | 1.20 | (0.90–1.58) |
| Arguments or friction with relatives or friends | 57.82 | 1.93 | 64.53 | 2.21 | 1.33 | (1.04–1.69) | 1.03 | (0.80–1.32) |
| Difficulty or inability to complete daily tasks | 73.91 | 1.78 | 78.76 | 1.74 | 1.31 | (1.00–1.72) | 1.30 | (0.98–1.73) |
| Restrict usual activities | 53.73 | 2.11 | 56.76 | 2.25 | 1.13 | (0.88–1.45) | 1.14 | (0.87–1.48) |
| Mean | S.E. | Mean | S.E. | Wald F | P value | Wald F | P value | |
| Number of stressful situations in last 12 months | 7.07 | 0.24 | 7.38 | 0.24 | 0.95 | 0.3472 | 0.06 | 0.8126 |
| SF-12v2 Scores | ||||||||
| Physical component summary | 47.21 | 0.53 | 48.33 | 0.57 | 1.45 | 0.1532 | 1.16 | 0.2850 |
| General health scale | 44.70 | 0.55 | 45.35 | 0.60 | 0.81 | 0.4200 | 1.22 | 0.2738 |
| Physical functioning scale | 47.97 | 0.53 | 46.89 | 0.50 | 1.51 | 0.1350 | 2.39 | 0.1271 |
| Role physical scale | 46.27 | 0.50 | 47.38 | 0.51 | 1.61 | 0.1111 | 1.07 | 0.3045 |
| Bodily pain | 44.41 | 0.59 | 44.66 | 0.51 | −0.33 | 0.7425 | 3.87 | 0.0534 |
| Mental component summary | 43.29 | 0.49 | 42.22 | 0.56 | 1.38 | 0.1734 | 5.41 | 0.0231 |
| Social function scale | 44.66 | 0.56 | 43.78 | 0.58 | 1.09 | 0.2786 | 5.51 | 0.0220 |
| Role emotional scale | 43.20 | 0.51 | 43.07 | 0.65 | 0.15 | 0.8838 | 3.55 | 0.0641 |
| Mental health scale | 42.83 | 0.47 | 42.06 | 0.55 | 1.05 | 0.2965 | 5.17 | 0.0263 |
| % | S.E. | % | S.E. | OR | 95% CI | AOR2 | 95% CI | |
| Overall Health excellent to good | 70.19 | 1.72 | 72.31 | 1.91 | 1.11 | (0.87–1.42) | 0.89 | (0.66–1.21) |
| Overall health fair to poor | 29.81 | 1.72 | 27.69 | 1.91 | 1.00 | (1.00–1.00) | 1.00 | (1.00–1.00) |
1
Reference group
2
AOR is adjusted for sex, race, US born, Age, individual in come, family income, and region.