Prognostic Value of the Average Lung CT Number in Patients with Acute Paraquat Poisoning

Table 3

Predictive value of various indicators for the prognosis of patients with acute PQ poisoning.

Parameters	Cut-off	Sensitivity (%)	Specificity (%)	YI	AUC	95% CI
Middle-lung field (Hu)	−779	80	85.7	0.657	0.87	0.768∼0.971
Lower-lung field (Hu)	−702	96	90.5	0.865	0.977	0.943∼1
Whole lung (Hu)	−727	76	95.2	0.712	0.914	0.830∼0.999
Plasma concentration of paraquat (μg/ml)	0.189	92	71.4	0.634	0.845	0.728∼0.962