Table 1

Group

Stable CK, mean (95% CI)

Rising CK, mean (95% CI)

P value

Number patients

21

15

CK peak

983

21,500

White cell count

13.6 (11.2–16)

16.8 (12–21.7)

0.16

First hematocrit

49 (47–51)

47 (44–50)

0.19

% change hematocrit

27 (19–36)

24 (18–30)

0.52

Anion gap

19 (15–22)

27 (23–32)

0.004

BUN (mg/dl)

28 (20–36)

16 (13–19)

0.01

First creatinine

2.3 (1.9–2.8)

2.0 (1.8–2.3)

0.25

Second creatinine

1.3 (1.1–1.6)

1.6 (1.6–1.9)

0.22

Rising creatinine

2/19

5/15

0.20

Urine large–moderate

7/19

13/15

0.005

Urine small–negative

12/19

2/15

Cocaine–amphetamine

14/17

11/15

0.68

CI, confidence interval.

Delaney Critical Care 2004 8(Suppl 1):P156   doi:10.1186/cc2623