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Table 1 Demographic and clinical parameters in the acute kidney injury (AKI) group according to the SOP-classification

From: Risk assessment of acute kidney injury following cardiopulmonary bypass

Parameter RRT p-value (chi-squared test)
No Yes
n = 3209 n = 365
Sex
 Male 2288 (91%) 234 (9%)  
 Female 920 (88%) 131 (12%) <  0.01
Valve surgery
 Yes 1090 (87%) 161 (13%)  
 No 2119 (91%) 204 (9%) <  0.01
Temperature
 Normothermia 1789 (92%) 163 (8%)  
 Mild hypothermia 693 (87%) 100 (13%)  
 Deep hypothermia 14 (74%) 5 (26%) <  0.01
Surgery
 Bypass 2006 (92%) 184 (8%)  
 Valve 645 (90%) 69 (10%)  
 Bypass+valve 445 (83%) 92 (17%) < 0.01