Table 1.

Previous studies assessing association of ANAs with various outcomes in ITP patients

StudyNumber of tested patientsDesignThreshold for ANA positivityPrevalence, %Outcomes
Kurata et al 66 chronic ITP Retrospective 1/40 44 No SLE and Sjögren syndrome during follow-up in the ANA+ group 
Vantelon et al 122 chronic ITP Retrospective 1/40 13 2 SLEs during follow-up in the ANA+ group 
Altintas et al 108 newly diagnosed and chronic ITP Retrospective 1/80 33.6 No difference regarding chronic evolution 
Abbasi et al  46 newly diagnosed ITP Retrospective 1/40 21.7 No difference regarding age, history of autoimmune disease, platelet count at diagnosis 
Response to corticosteroids less frequent if ANA+ 
Grimaldi-Bensouda et al 136 newly diagnosed ITP Prospective 1/80 25.7 No difference regarding age, sex, platelet count at diagnosis, chronic evolution 
More frequent familial history of autoimmune disease and less frequent bleeding at diagnosis if ANA+ 
Moulis et al 85 newly diagnosed ITP Prospective 1/160 44.7 Risk for chronicity if ANA+ (OR, 2.89; 95% CI, 1.08-7.74) 
Hollenhorst et al 144 ITP Retrospective 1/40 65 Higher risk for thrombosis if ANA+ 
No difference in remission at last follow-up 
StudyNumber of tested patientsDesignThreshold for ANA positivityPrevalence, %Outcomes
Kurata et al 66 chronic ITP Retrospective 1/40 44 No SLE and Sjögren syndrome during follow-up in the ANA+ group 
Vantelon et al 122 chronic ITP Retrospective 1/40 13 2 SLEs during follow-up in the ANA+ group 
Altintas et al 108 newly diagnosed and chronic ITP Retrospective 1/80 33.6 No difference regarding chronic evolution 
Abbasi et al  46 newly diagnosed ITP Retrospective 1/40 21.7 No difference regarding age, history of autoimmune disease, platelet count at diagnosis 
Response to corticosteroids less frequent if ANA+ 
Grimaldi-Bensouda et al 136 newly diagnosed ITP Prospective 1/80 25.7 No difference regarding age, sex, platelet count at diagnosis, chronic evolution 
More frequent familial history of autoimmune disease and less frequent bleeding at diagnosis if ANA+ 
Moulis et al 85 newly diagnosed ITP Prospective 1/160 44.7 Risk for chronicity if ANA+ (OR, 2.89; 95% CI, 1.08-7.74) 
Hollenhorst et al 144 ITP Retrospective 1/40 65 Higher risk for thrombosis if ANA+ 
No difference in remission at last follow-up 

CI, confidence interval; OR, odds ratio.

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