Table 1.

Anthropometric Data, Respiratory Function, Ventilator Used Regularly, and Ventilators Compared

Age	Gender	FEV1%	FVC %	FEV1/FVC	BMI	Ventilator Used	Ventilator Group 1	Ventilator Group 2
73	M	15	38	30	26	Lumis 150	Astral 150	Vivo 40
77	M	31	60	37	25	Trilogy	Stellar 150	Prisma
77	M	30	38	56	28	Lumis 150	Stellar 150	Prisma
58	M	16	53	24	26	Trilogy	Trilogy	Vivo 40
59	M	21	58	21	29	Trilogy	Astral 150	Prisma
55	M	22	60	29	27	VPAP S/T Resmed	Vivo 50	PB560
71	M	28	56	38	29	Lumis 150	Vivo 50	PB560
57	M	20	64	24	26	Lumis 150	Astral 150	PB560
60	M	19	66	23	17	Lumis 150	Trilogy	Vivo 40
65	F	44	74	48	19	Lumis 150	Vivo 50	Vivo 40

Abbreviations: COPD, chronic obstructive pulmonary disease; EMGpara, Parasternal electromyography; EPAP, expiratory positive airway pressure; IPAP, inspiratory positive airway pressure; NIV, Non invasive ventilation; PS, pressure support; PTP (300/500), pressure-time product; RMS, root mean square.