Table 5. The differences of pleural effusion volume and different scoring systems in predicting severe AP and organ failure in 309 patients.

ROC curve	Severe AP			Organ failure
	Z value	P value		Z value	P value
Pleural effusion volume-CTSI	0.049	0.961		0.717	0.473
Pleural effusion volume-APACHE II	0.310	0.757		1.558	0.119
Pleural effusion volume-BISAP	0.118	0.906		0.026	0.980
Pulmonary consolidation scores-CTSI	0.669	0.503		1.184	0.236
Pulmonary consolidation scores-APACHE II	0.948	0.343		1.052	0.293
Pulmonary consolidation scores-BISAP	0.427	0.669		0.507	0.612
Pleural effusion volume-pulmonary consolidation	0.541	0.588		0.478	0.633
CTSI-APACHE II	0.310	0.757		2.607	0.009
CTSI-BISAP	0.140	0.889		0.760	0.447
APACHE II-BISAP	0.492	0.623		1.870	0.061