Table 2.

Demographic and clinical characteristics of 117 patients with preexisting ITP who received at ≥1 dose of a SARS-CoV-2 vaccine

CharacteristicMean ± SD, median [IQR], or n (%)No. available for analysis
Age 62.5 ± 16.9 116 
Gender   
 Male 43 (37.8) 117 
 Female 74 (62.2) 74 (62.2) 
Duration of ITP diagnosis (y) 12 [4-23] 97 
No. of previous ITP treatments   
 None 6 (8.1) 74 
 Medical treatments* 3 [2-4] 75 
 Rituximab 41 (40.6) 101 
 Splenectomy 25 (20.7) 117 
Current ITP treatment   
 TPO-RA only 47 (40.2) 117 
 Corticosteroid only 4 (3.4)  
 Other single-agent therapies† 5 (4.3)  
 TPO-RA + corticosteroid 5 (4.3)  
 TPO-RA + IVIG + mycophenolate 3 (2.6)  
 TPO-RA + ibrutinib 2 (1.7)  
 Corticosteroid + mycophenolate 2 (1.7)  
 TPO-RA + corticosteroid + mycophenolate 1 (0.8)  
 No current treatment and platelets <150 × 109/L 32 (27.4)  
 No current treatment and platelets ≥150 × 109/L 16 (13.7)  
Comorbidities   
 Autoimmune hemolytic anemia 10 (11.6) 86 
 Other autoimmune disease 31 (36)  
Vaccine manufacturer   
 Moderna 48 (42.1) 114 
 Pfizer-BioNTech 53 (46.5)  
 Janssen 4 (3.5)  
 Oxford-AstraZeneca 9 (7.9)  
CharacteristicMean ± SD, median [IQR], or n (%)No. available for analysis
Age 62.5 ± 16.9 116 
Gender   
 Male 43 (37.8) 117 
 Female 74 (62.2) 74 (62.2) 
Duration of ITP diagnosis (y) 12 [4-23] 97 
No. of previous ITP treatments   
 None 6 (8.1) 74 
 Medical treatments* 3 [2-4] 75 
 Rituximab 41 (40.6) 101 
 Splenectomy 25 (20.7) 117 
Current ITP treatment   
 TPO-RA only 47 (40.2) 117 
 Corticosteroid only 4 (3.4)  
 Other single-agent therapies† 5 (4.3)  
 TPO-RA + corticosteroid 5 (4.3)  
 TPO-RA + IVIG + mycophenolate 3 (2.6)  
 TPO-RA + ibrutinib 2 (1.7)  
 Corticosteroid + mycophenolate 2 (1.7)  
 TPO-RA + corticosteroid + mycophenolate 1 (0.8)  
 No current treatment and platelets <150 × 109/L 32 (27.4)  
 No current treatment and platelets ≥150 × 109/L 16 (13.7)  
Comorbidities   
 Autoimmune hemolytic anemia 10 (11.6) 86 
 Other autoimmune disease 31 (36)  
Vaccine manufacturer   
 Moderna 48 (42.1) 114 
 Pfizer-BioNTech 53 (46.5)  
 Janssen 4 (3.5)  
 Oxford-AstraZeneca 9 (7.9)  
*

Only patients who have received treatments for ITP are included. Medical treatments includes rituximab.

Fostamatinib (n = 2), azathioprine (n = 1), dapsone (n = 1), and cyclosporine (n = 1).

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