Table 1

Anthropometric characteristics, lung function, and polygraphic data

Subjects	Age (years)	Sex	BMI (kg/m²)	FEV₁ (% pred)	VC (% pred)	FEV₁/VC (% pred)	FRC (% pred)	TLC (% pred)	AHI (n/h)	DI (n/h)
BMI=body mass index; FEV₁=forced expiratory volume in 1 second; VC=vital capacity; FRC=functional residual capacity; TLC=total lung capacity; AHI=apnea/hypopnea index (n per hour of sleep); DI=index of desaturation per hour of sleep (n/h).
Group 1
1	61	M	32	93	108	87	106	103	28	25
2	59	M	25	97	90	110	85	109	22	15
3	59	M	35	121	118	106			80	73
4	46	M	26	77	84	94			57	53
5	47	M	27	95	97	101	60	89	29	39
6	75	M	34	98	97	102	61	71	32
10	45	F	29	93	94	103			37
12	65	M	25	108	104	108	59	78	32	20
15	44	M	36	103	121	88	69	101	50	3
16	67	M	28	83	86	99	91	82	20	59
17	44	M	39	123	129	99	93	117	78	0
18	71	F	27	137	137	102	100	105	56
19	55	M	41	90	97	96			75	70
Mean	57		30	102	105	100	80	95	43	32
SD	11		5	17	17	7	18	16	21	26

Group 2
7	40	M	27	98	110	92	118	111	10	5
8	55	M	26	102	100	104			36	14
9	74	M	24	79	102	79	124	107	22	6
11	48	F	31	123	140	91			25	43
13	56	F	40	123	128	100	95	119	34	13
14	38	M	26	95	104	94			15
Mean	51		28	97	104	87	89	92	34	26
SD	18		10	33	34	29	38	38	20	22