Table 1.

Characteristics of patients with ITP included in the study

Baseline characteristics Patients with ITP (n = 24)
Age in y, median (range) 60 (36-90) 
Male (%)  57 
Platelet count, median (range) 66 (2-459) 
Years since diagnosis of ITP, median (range)  8 (0-58) 
Newly diagnosed or persistent (0-12 mo), n (%) 5 (22%) 
Chronic (>12 mo), n (%) 18 (78%) 
Number of previous therapies, median (range) 3 (0-10) 
Splenectomized (%) 26% 
IVIg treated (n)  15 
IVIg responsive (%) 73% 
Baseline characteristics Patients with ITP (n = 24)
Age in y, median (range) 60 (36-90) 
Male (%)  57 
Platelet count, median (range) 66 (2-459) 
Years since diagnosis of ITP, median (range)  8 (0-58) 
Newly diagnosed or persistent (0-12 mo), n (%) 5 (22%) 
Chronic (>12 mo), n (%) 18 (78%) 
Number of previous therapies, median (range) 3 (0-10) 
Splenectomized (%) 26% 
IVIg treated (n)  15 
IVIg responsive (%) 73% 

IVIg, intravenous immunoglobulin.

At time of serum collection.

Data available for 23 of 24 patients with ITP.

IVIg administered ≥4 weeks before study enrollment.

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