Practice Variation in Spontaneous Breathing Trial Performance and Reporting

Table 1

Overall distribution of PEEP and PS ranges amongst all SBTs. Ranges shown for pre- and during-SBT levels.

Range (cmH20)	PEEP		PS
	Pre-SBT	During-SBT	Pre-SBT	During-SBT
0 to 4	2%	14%	5%	8%
5	22%	80%	5%	78%
6 to 10	75%	6%	74%	13%
>10	1%	0%	16%	1%

Values expressed as % proportion of all SBTs. PEEP, positive end expiratory pressure; PS, pressure support.