Table 1. Change of the thoracic cage and forced vital capacity (FVC) in patients with pleuroparenchymal fibroelastosis

Case	Age years	Sex	Idiopathic or with underlying disease	Diagnostic method	APDT/TDT ratio			FVC (% predicted)
					1st measurement	2nd measurement	Interval between measurements	1st measurement	2nd measurement	Interval between measurements
1	41	M	Ulcerative colitis	SLB	0.45	0.458	4.39 years
2	55	M	Idiopathic	SLB	0.592	0.509	5.27 years	3540 mL (87%)	1120 mL (29%)	4.67 years
3	60	M	Idiopathic	SLB	0.599	0.554	2.79 years	2580 mL (78%)	1040 mL (32%)	2.64 years
4	78	M	Radiation therapy for oesophageal cancer	Autopsy	0.579	0.53	1.87 years	2480 mL (69%)	1370 mL (39%)	1.42 years
5	32	F	Lung transplantation	SLB	0.54	0.489	2.31 years	2050 mL (69%)	640 mL (20%)	2.47 years
6	48	F	Idiopathic	SLB	0.599	0.522	4.03 years	2030 mL (67%)	1380 mL (49%)	3.61 years
7	59	F	Idiopathic	SLB	0.652	0.6	4.59 years
8	81	F	Idiopathic	Autopsy	0.729	0.612	2.04 years	1800 mL (83%)	1060 mL (51%)	1.84 years

APDT: anteroposterior diameter of the thoracic cage; TDT: transverse diameter of the thoracic cage; M: male; F: female; SLB: surgical lung biopsy.