Systematic review of determinants of mortality in high frequency oscillatory ventilation in acute respiratory distress syndrome

Table 2 Linear regression analysis of determinants of mortality in high frequency oscillatory ventilation

Study	Mort	Vent	Surv	NoPat	Age	Sex	APACHE II	TimeCV	pH	PaCO₂	PAF	OI	PIP	PEEP	MAP	FiO₂
[15]	0.53			17	38.0	0.5	23.3	5.0		44.7		47.8	54.3	18.3
[22]	0.20			5	36.6	2.6	28.7	6.0
[18]	0.67		0.33	24	48.4	8.3	21.5	5.7		55.1	98.9	32.5	36.7	14.5	24.3	0.78
[13]	0.37	0.43	0.36	75	48.0	0.5	22.0	2.7	7.37	44.0	114.0	24.0	39.0	13.0	22.0	0.71
[21]	0.31			16	38.0		26.6	7.0	7.30	8.4		27.4	35.1	11.6
[17]	0.43			42	49.0	0.7	28.0	3.0	7.33	57.0	94.0	23.0	35.0	15.0	24.0	1.00
[14]	0.62	0.53	0.18	154	47.9	56.6	24.0	5.7	7.28	53.2	91.2	31.4	36.1	14.0	24.1	0.86
[20]	0.32			25	42.4			4.9			97.0	26.8
[11]	0.43	0.19	0.46	37	50.7	14.3	21.1	2.1	7.30	53.5		25.2	33.1	13.9	21.5	0.84

Values are presented as pooled means of studies. FiO₂, fraction of inspired oxygen; MAP, mean airway pressure (cmH₂O); Mort, mortality incidence at 30 days; NoPat, number of patients; OI, oxygenation index; PaCO₂, pressure of arterial carbon dioxide (mmHg); PAF, pressure of arterial oxygen (mmHg)/fraction of inspired oxygen; PEEP, peak end-expiratory pressure (cmH₂O); PIP, peak inspiratory pressure (cmH₂O); Surv, survival at 30 days without ventilation; TimeCV, time on conventional mechanical ventilation (CV) prior to high frequency oscillatory ventilation (days); Vent, ventilation at 30 days.

ISSN: 1364-8535