Table 3

Comparisons of the main characteristics of primary and secondary cases

Primary ES, n = 34Secondary ES, n = 34P
Mean age, y 62 ± 21.5 53.5 ± 17 .07 
Mean age at diagnosis, y 57 ± 23 48 ± 19 .08 
Sex ratio   .4 
    Females 19 (56%) 22 (65%)  
    Males 15 (44%) 12 (35%)  
Occurrence of ITP and AIHA   .3 
    Simultaneously 23 (68%) 19 (56%)  
    Sequentially 11 (32%) 15 (44%)  
Mean lowest Hb level, g/dL 6.9 ± 1.7 6.1 ± 2.0 .07 
Median lowest platelet level (×109/L) 8 (1-100) 6 (1-90) .5 
Need for transfusion 18 (53%) 15 (44%) .5 
Splenectomy 11 (32%) 8 (24%) .5 
Initial response 8 (72%) 7 (87%) .6 
Deaths 9 (26%) 7 (20.5%) .4 
Primary ES, n = 34Secondary ES, n = 34P
Mean age, y 62 ± 21.5 53.5 ± 17 .07 
Mean age at diagnosis, y 57 ± 23 48 ± 19 .08 
Sex ratio   .4 
    Females 19 (56%) 22 (65%)  
    Males 15 (44%) 12 (35%)  
Occurrence of ITP and AIHA   .3 
    Simultaneously 23 (68%) 19 (56%)  
    Sequentially 11 (32%) 15 (44%)  
Mean lowest Hb level, g/dL 6.9 ± 1.7 6.1 ± 2.0 .07 
Median lowest platelet level (×109/L) 8 (1-100) 6 (1-90) .5 
Need for transfusion 18 (53%) 15 (44%) .5 
Splenectomy 11 (32%) 8 (24%) .5 
Initial response 8 (72%) 7 (87%) .6 
Deaths 9 (26%) 7 (20.5%) .4 
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