Table 1 Gender specific comparison of CK and Cr values

Female (n = 303)

n = 19

n = 284

 CK values (U/l) on admission; median (range)

142 (39 – 7705)

137 (12 – 1792)

0.07

 Elevated CK values on admission

10 (52.6%)

105 (37.0%)

0.22

 Further CK increase after admission

9 (47.4%)

69 (24.3%)

0.05

 Cr values (mg/dl) on admission, median (range)

1.0 (0.7 – 1.6)

1.0 (0.5 – 2.6)

0.35

 Elevated Cr values on admission

5 (26.3%)

29 (10.2%)

0.05

Male (n = 438)

n = 31

n = 407

 CK values (U/l) on admission; median (range)

167 (29 – 13547)

145 (21 – 42143)

0.46

 Elevated CK values on admission

17 (54.8%)

171 (42.0%)

0.18

 Further CK increase after admission

15 (48.4%)

94 (23.1%)

0.004

 Cr values (mg/dl) on admission, median (range)

1.2 (0.1 – 1.9)

1.1 (0.5 – 2.8)

0.36

 Elevated Cr values on admission

11 (35.5%)

40 (9.8%)

<0.001