Table 1.

Baseline characteristics

Healthy controls (N = 180)Newly diagnosed ITP (TIKI) (N = 180)Chronic ITP (CINKID) (N = 22)
Female, n/N (%) 133/180 (74) 84/180 (47) 14/22 (64) 
Caucasian, n/N (%) 180/180 (100) 123/135 (91) 22/22 (100) 
Age at diagnosis, y  4.1 (2.6 - 7.7) 3.8 (2.1-9.6) 
Preceding infection, n/N (%)  96/178 (54) 9/16 (56) 
Buchanan ccore >2, n/N (%)  72/179 (40) 7/22 (32) 
Presenting platelet count, ×109/L  6 (3 - 10) 15 (10-34) 
Healthy controls (N = 180)Newly diagnosed ITP (TIKI) (N = 180)Chronic ITP (CINKID) (N = 22)
Female, n/N (%) 133/180 (74) 84/180 (47) 14/22 (64) 
Caucasian, n/N (%) 180/180 (100) 123/135 (91) 22/22 (100) 
Age at diagnosis, y  4.1 (2.6 - 7.7) 3.8 (2.1-9.6) 
Preceding infection, n/N (%)  96/178 (54) 9/16 (56) 
Buchanan ccore >2, n/N (%)  72/179 (40) 7/22 (32) 
Presenting platelet count, ×109/L  6 (3 - 10) 15 (10-34) 

Data are median (interquartile range) unless noted otherwise.