TABLE 2

Initial pulmonary function tests (PFTs)

Subject	Age years	FEV₁ % predicted	FVC % predicted	FEV₁/FVC %	TLC % predicted	PFT pattern	D_LCO % predicted
1	31	55	61	72	68	Restrictive	37
3	23	35	48	62	56	Mixed	17
4	20	56	58	83	62	Restrictive	45
5	13	57	72	75	67	Restrictive	69
6	5	58	56	95	NA	Restrictive	NA
7	35	32	43	63	63	Mixed	NA
8	7	67	64	98	67	Restrictive	NA
10	8	82	76	91	NA	Normal	NA
11	28	67	69	83	76	Restrictive	68
12	35	69	69	80	69	Restrictive	41
13	15	89	91	79	101	Obstructive	58
14	9	59	61	89	72	Restrictive	48

FEV₁: forced expiratory volume in 1 s; FVC: forced vital capacity; TLC: total lung capacity; D_LCO: diffusing capacity of the lung for carbon monoxide; NA: not available.