showed a trendp = 0.005
Blood gas analysis revealed that patients who died showed a trend of metabolic acidosis, with a difference in the intercepts for pH between survivors and non-survivors (7.37 and 7.30, p = 0.005) and with estimated means of 7.40 (standard error (SE) 0.02) and 7.32 (SE 0.02, p = 0.005).