Table 3

Demographic data of transpulmonary gradient study patients

Group	Age (years)	Sex	P/F ratio (kPa)	Diagnosis
Perioperative controls	62	Male	78.2	Oesophagectomy for malignancy
	29	Male	81.0	Oesophagectomy for non-malignant constriction
	70	Female	74.8	Oesophagectomy malignancy
	70	Male	82.7	Oesophagectomy for malignancy
	48	Male	88.1	Oesophagectomy malignancy
Sepsis	48	Female	40.0	Chronic liver disease
	84	Male	44.4	Gram-negative bacteraemia
	70	Female	44	Streptococcal bacteraemia
	66	Female	48.2	Biliary sepsis
	55	Female	42.8	Large bowel perforation
	79	Female	53.7	Small bowel perforation
ARDS	29	Female	13.3	H1N1 influenza
	39	Male	23.3	Polytrauma
	79	Male	14.9	Septic shock of unknown source
	75	Male	13.0	Community acquired pneumonia
	48	Female	14.0	Chronic liver disease
	84	Male	13.7	Necrotising fasciitis
	51	Male	15.7	Hospital-acquired pneumonia
	71	Male	17	Biliary sepsis