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. Author manuscript; available in PMC: 2010 Apr 12.
Published in final edited form as: J Nerv Ment Dis. 2009 Apr;197(4):215–224. doi: 10.1097/NMD.0b013e31819d954f

Table 5.

Diagnoses and Classes

Class 1 Class 2 Class 3 Class 4 Class 5 Class 6 Class 7
Study
Sample
Low Distress Mild
Psychological
Depression
Mild Somatic
Anxiety
Psychological
Anxious-
Depression
Anxious -
Misery
Somatic
Depressed-
Anxiety
Restless
Somatic
Depression
MDD Only*** 28.15% 0.00% 29.45% 4.89% 46.91% 40.71% 33.61% 36.60%
GAD Only*** 14.19% 17.98% 3.93% 38.68% 8.09% 7.21% 14.99% 0.00%
Co-morbid MDD/GAD*** 26.49% 0.00% 0.00% 4.04% 25.20% 45.82% 46.09% 63.40%
Neither*** 31.17% 82.02% 66.63% 52.39% 19.80% 6.26% 5.32% 0.00%
Alcohol Disorder (ns) 33.64% 32.37% 45.34% 28.06% 31.43% 24.19% 41.09% 33.16%
Drug Disorder(ns)r 20.41% 13.35% 25.78% 15.44% 18.52% 17.02% 30.25% 22.17%
Dysthymia*** 31.55% 0.00% 28.80% 22.95% 30.13% 59.10% 36.87% 50.75%
Bipolar*** 6.51% 0.00% 1.32% 1.67% 7.37% 5.25% 10.97% 14.80%
Social Phobia*** 23.64% 10.67% 12.89% 25.75% 11.04% 26.98% 40.23% 37.53%
Simple Phobia*** 23.38% 1.63% 12.93% 19.51% 19.85% 22.33% 38.47% 40.03%
Panic Disorder*** 13.37% 2.81% 4.42% 14.14% 3.96% 13.99% 28.56% 23.95%
Psychotic Disorder(ns) 2.41% 0.00% 1.44% 0.00% 3.25% 0.00% 3.85% 5.78%
PTSD** 17.1% 13.40% 5.29% 10.39% 15.09% 8.30% 28.40% 30.49%

Mean (SD) # of Diagnoses other than MDD GAD** 1.68 (1.93) 0.65 (0.78) 1.38 (1.20) 1.43 (1.29) 1.29 (1.37) 1.87 (1.34) 2.58 (2.00) 2.50 (1.86)
***

p< 0.001

**

p< 0.01

*

p< 0.05 (ns) not significant