Prevalence of anxiety disorders comorbidity in bipolar depression, unipolar depression and dysthymia.
Eighty-seven patients with current episode of depression were assessed by the SCID-P and subdivided in bipolar depressives (N = 24), unipolar depressives (n = 38) and dysthymics (n = 25). Anxiety disorders comorbidity in these three groups was investigated by means of the SCID-P. Panic disorder comorbidity was found in 36.8% of bipolar depressives, 31.4% of unipolar depressives and 13% of dysthymics. Prevalence of obsessive-compulsive disorder was 21.1% in bipolars, 14.3% in unipolars and 8.7% in dysthymics. Generalized anxiety disorder resulted in being much more associated with dysthymia (65.2%) than with bipolar (31.6%) or unipolar depression (37.1%). Social phobia comorbidity was exhibited mainly by unipolars (11.4%), while no cases were detected in the bipolar group. Odds ratios revealed that generalized anxiety disorder is significantly more likely to co-occur with dysthymia. Panic disorder showed a higher trend to be associated with bipolar and unipolar depression. Social phobia was more frequent among unipolar depression.
Pini
S
S
Institute of Psychiatry, University of Verona, Ospedale Policlinico, Italy.
Cassano
G B
GB
Simonini
E
E
Savino
M
M
Russo
A
A
Montgomery
S A
SA
D000328:Adult; D001008:Anxiety Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D001714:Bipolar Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D015897:Comorbidity; D003430:Cross-Sectional Studies; D003866:Depressive Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D019263:Dysthymic Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D005260:Female; D006801:Humans; D015994:Incidence; D007558:Italy / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009771:Obsessive-Compulsive Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D016584:Panic Disorder / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D010555:Personality Inventory / Q000706:statistics & numerical data; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data