Serum levels of nitric oxide (NO)
Figure 1 presents the comparison of mean serum levels of NO in ARDS survivor group of patients (6.98 μmol/L ±2.58) and ARDS non-survivor group of patients (3.45 μmol/L ±0.83). Statistical analysis with t- test showed a significantly higher (p < 0.01) serum level of NO in the ARDS survivor group of patients in comparison to the ARDS non-survivor group of patients.