Table 3: MRP1 versus MRP4 expression in EOC as assessed by immunohistochemical staining.

MRP1  
expression
MRP4 expression   
(P-value)
Negative  
80
Positive  
24
Not available  
23

Negative
 8463 (86%)*10 (14%)11
Positive
 3615 (54%)13 (47%)810.536
Not available
 72140.0011

Raw percentages are reported and refer to the only case valuable for both MRPs.