There was a significant increase in the geometric mean peak CK in the oxygen group
compared to no oxygen group, 1948 U/L (95% CI, 1721 to 2205) compared with 1543 U/L (95%
CI, 1341 to 1776), with a ratio of oxygen to no oxygen of 1.26 (95% CI, 1.05 to 1.52; P=0.01).
Significant findings were also found for geometric mean AUC72 (Table 3). The results of the
repeated measures analysis were similar to cTnI, a consistent 20% increase in the geometric
mean CK was found in the oxygen group irrespective of assay time (Fig. 3), which was
significant (subgroups (Supplemental Figure 4).