Table 3

Comparison of clinical data of ET patients between the Vienna and the historical Cologne series

Vienna (126 patients)Cologne (167 patients)P*
Age, y 58.1 56 NS 
Sex, male/female 46/80 67/100 NS 
Hemoglobin, g/dL†    
    Males 14.2 14.3 NS 
    Females 14.1 14.0 NS 
Hematocrit, %    
    Males 42.2 42.1 NS 
    Females 42.5 41.7 NS 
Leukocytes, × 109/L† 8.8 11.0 .012 
Myeloblasts, % 0 0 NS 
Erythroblasts, % 0 0 NS 
Platelets, × 109/L† 758 1,000 .001 
Palpable spleen, no. (%) 22 (19) 36 (22) .001 
LDH, U/L† 212 244 NS 
Vienna (126 patients)Cologne (167 patients)P*
Age, y 58.1 56 NS 
Sex, male/female 46/80 67/100 NS 
Hemoglobin, g/dL†    
    Males 14.2 14.3 NS 
    Females 14.1 14.0 NS 
Hematocrit, %    
    Males 42.2 42.1 NS 
    Females 42.5 41.7 NS 
Leukocytes, × 109/L† 8.8 11.0 .012 
Myeloblasts, % 0 0 NS 
Erythroblasts, % 0 0 NS 
Platelets, × 109/L† 758 1,000 .001 
Palpable spleen, no. (%) 22 (19) 36 (22) .001 
LDH, U/L† 212 244 NS 

NS indicates not significant; and LDH, lactate dehydrogenase.

*

Two-tailed Mann-Whitney U test.

†

Median value.

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