From: Psychiatric comorbidity in chronic urticaria patients: a systematic review and meta-analysis
 | Chronic urticaria patients | Control individuals | |||
---|---|---|---|---|---|
All | With psychiatric comorbidity | All | With psychiatric comorbidity | ||
Uguz et al. [26] | |||||
 Case–control study | 89 | 44 | 60 | 8 | |
Atefi et al. [25] | |||||
 Case–control study | 30 | 19 | 30 | 14 | |
Chu et al. [17] | |||||
 Case–control study | 177,879 | 56,195 | 996,356 | 45,449 | |
Total | 177,998 | 56,258 | 996,446 | 45,471 | |
119# | 63# | 90# | 22# | ||
Pooled prevalence | Â | 31.6%* | Â | 4.6%* | |
 | 52.9%#, ** |  | 24.4%#, **` |