Biological parameters

Frequency

(%)

Mean

Student test

Average difference

t

Bilateral significance

CI

Urea

Death

15 (41.7)

1.5

0.18

0.6

0.525

−5.7; 9.7

Living

21 (58.3)

1.3

Creatinine

Death

87 (34.4)

32.9

1.9

0.5

0.614

−5.6; 9.6

Living

166 (65.6)

31