Overnight variation in tidal expiratory flow limitation in COPD patients and its correction: an observational study

Table 1 Demographic, physiological and observational data for all subjects that completed the overnight PSG study or the 2-week in-home ventilator use study

Participant #	Sex	Age	BMI	FEV1 (% predicted)	FEV1/FVC	Sp02	Previous ventilation user	Overnight PSG	2-Week take home
1	M	70	32.4	39	52	92	No	Yes	Yes
2	F	64	30.2	53	68	95	No	Yes	Yes
3	M	68	30.5	48	49	93	No	Yes	No
4	F	78	24.8	33	33	95	No	Yes	No
5	M	71	38.7	32	32	91	No	Yes	No
6	M	62	39.7	67	86	97	Bilevel	Yes	No
7	M	53	25.9	47	61	94	CPAP	Yes	No
8	F	65	27.1	56	56	94	No	Yes	Yes
9	F	68	35.6	43	38	93	No	Yes	Yes
10	M	69	28.9	54	72	93	Bilevel	Yes	Yes
11	F	63	21.6	35	45	96	Bilevel	Yes	Yes
12	M	56	14.5	48	60	90	No	Yes	Yes
13	M	67	31.5	40	52	95	Bilevel	Yes	Yes
14	M	64	42.3	52	42	92	Bilevel	Yes	Yes
15	F	64	28.6	45	45	97	No	Yes	No
16	F	57	33.56	65	88	97	CPAP	No*	Yes
Average		64.9	30.3	47.2	55	94
Std. Dev		6.2	7.01	10.3	16.9	2.1

^*This patient had to withdraw from the PSG night due to influenza but was keen to complete the study when they recovered from the acute illness

ISSN: 1465-993X