IL6 and respiratory failure: Median CRP levels were elevated three times (58.15 vs. 20.8), median LDH levels were elevated twice (358 vs. 158.5), median CPK 14 times (387.5 vs. 27.5), and median IL-6 levels were elevated 20 times in patients with respiratory failure than patients without respiratory failure ((162.1 vs. 6.4), (p < 0.05)).