Table 1.

Baseline characteristics of these studies.

References	Type	Jadad scale	Participants	Treat	Control
Colombo et al. (10)	Randonmized, cross-over	1+2+0+1 = 4	14	NAVA	PSV
Schmidt et al. (11)	Randonmized, cross-over	1+1+0+0 = 2	12	NAVA	PSV
Piquilloud et al. (12)	Randonmized, cross-over	1+1+0+0 = 2	22	NAVA	PSV
Piquilloud et al. (13)	Randonmized, cross-over	1+1+0+0 = 2	13	NAVA	PSV
Bertrand et al. (14)	Randonmized, cross-over	1+1+2+0 = 4	13	NAVA	PSV
Vignaux et al. (15)	Randonmized, cross-over	1+1+0+0 = 2	19	NAVA	PSV
Doorduin et al. (16)	Randonmized, cross-over	2+1+1+1 = 5	12	NAVA	PSV
Baudin et al. (17)	Randonmized, cross-over	1+1+0+0 = 2	11	NAVA	PSV
Vignaux et al. (18)	Randonmized, cross-over	2+1+1+1 = 5	6	NAVA	PSV
Chidini et al. (19)	Randonmized, cross-over	2+1+1+1 = 5	18	NAVA	PSV
Demoule et al. (20)	RCT	1+2+0+1 = 4	128	NAVA	PSV
Ferreira et al. (21)	Randonmized, cross-over	2+2+1+0 = 5	20	NAVA	PSV
Kacmarek et al. (22)	RCT	2+2+1+1 = 6	306	NAVA	CMV
Hadfield et al. (23)	RCT	2+2+1+0 = 5	77	NAVA	PSV
Tajamul et al. (24)	RCT	2+1+1+1 = 5	40	NAVA	PSV
Liu et al. (25)	RCT	2+2+1+1 = 6	99	NAVA	PSV
Cammarota et al. (26)	Randonmized, cross-over	2+2+1+0 = 5	16	NAVA	PSV
Prasad et al. (27)	RCT	2+2+1+1 = 6	100	NAVA	PSV

NAVA, neurally adjusted ventilatory assist; RCT, randomized controlled trial; PSV, pressure support ventilation; and CMV, conventional mechanical ventilation.