When the ghrelin value was 445 pg/ml, the sensitivity and specificity of the plasma ghrelin level for predicting sepsis with ARDS were 0.867 and 0.500, respectively, and the PPV, NPV, +LR, –LR, and Yuden index of ghrelin for the diagnosis of sepsis with ARDS were 59.1, 81.8, 1.734, 0.266, and 0.367%, respectively (Table 2 and Figure 5). This evidence concerns the gene GHRL and acute respiratory distress syndrome.