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Table 5 Mean anxiety scores per anxiety disorder, per number of anxiety disorders and per comorbidity group, over the study samples pooled and the range across the separate study samples

From: To what extent does the anxiety scale of the Four-Dimensional Symptom Questionnaire (4DSQ) detect specific types of anxiety disorder in primary care? A psychometric study

  Pooled Range
  N Mean (SD) Mean (SD)
Anxiety disorder      
- Panic disordera 176 12.6 (6.2) 9.8 – 14.8 (4.2 – 7.5)
- Agoraphobiab 176 12.9 (6.6) 9.0 – 15.5 (5.4 – 6.6)
- Social phobia 158 11.9 (6.8) 9.3 – 15.1 (5.4 – 7.4)
- GADc 225 9.9 (6.5) 8.0 – 13.7 (5.1 – 6.9)
- Specific phobia 42 9.5 (6.4) 7.6 – 10.4 (6.4 – 6.4)
- OCDd 47 12.8 (7.0) 7.8 – 13.9 (4.4 – 7.0)
- PTSDe 52 12.9 (6.7) 10.7 – 13.2 (5.0 – 6.9)
Number of anxiety disorders      
- 0 492 4,1 (4,4) 3.1 – 4.7 (3.9 – 5.3)
- 1 228 7,4 (5,3) 6.0 – 8.5 (4.3 – 6.3)
- 2 148 10,6 (5,8) 8.6 – 12.3 (5.0 – 6.3)
- ≥ 3 101 15,1 (6,0) 12.4 – 17.3 (5.0 – 6.5)
Comorbidity groups      
- No anxiety or depressive disorder 263 3.2 (4.0) 1.8 – 5.4 (2.7 – 4.9)
- Depressive disorder(s)f only 229 5.0 (4.7) 4.1 – 9.2 (3.7 – 5.9)
- Anxiety disorder(s) only 198 8.3 (5.9) 6.5 – 9.9 (5.2 – 6.5)
- Comorbid anxiety and depressive disorders 279 11.3 (6.5) 8.6 – 14.2 (4.7 – 6.7)
  1. aPanic disorder without agoraphobia plus panic disorder with agoraphobia.
  2. bAgoraphobia without history of panic disorder plus panic disorder with agoraphobia.
  3. cGeneralized anxiety disorder.
  4. dObsessive compulsive disorder.
  5. ePost traumatic stress disorder.
  6. fMajor depressive disorder and/or dysthymia.