highly significantp = 0.0003
The analysis of PdiTw and these confounding variables (Table 2 ) found that PdiTw (x in the analysis) had a highly significant relationship to mortality ( p = 0.0003) but none of the other variables (sepsis, age, gender, respiratory system static compliance, inspiratory airway resistance, steroid usage, the severity of organ failure (SOFA score), and the Charlson Comorbidity Index) were significantly related to mortality.