A Systematic Review and Meta-Analysis of Randomized Controlled Trials on Supine vs. Nonsupine Endotracheal Intubation

Table 2

Population characteristic in supine vs. lateral positions.

Supine vs. lateral positions
Study	Location	Country	Number of patients	Age	Male (%)	BMI
Cheng et al. [22]	Single-center	Taiwan	40	40.6	52.5	23.96
			80	43.35	50.6	24.15
Dimitriou et al. [23]	Multicenter	Greece and Australia	40	46	45	24.84
			80	44	40	24.85
Jin et al. [24]	Multicenter	China	59	55.39	59.3	23.56
			61	55.08	60.6	22.53
Khan et al. [5]	Single-center	Pakistan	60	35.8	63.3	—
			60	35	63.3	—
Komatsu et al. [25]	Single-center	Japan	43	62	34.8	23
			86	56	31.3	22
Li et al. [26]	Multicenter	China	38	52.6	31.5	23.75
			34	50.5	35.2	24.68
Naithani et al. [27]	Single-center	India	35	30.8	—	21.28
			35	28.51	—	20.94
Naithani et al. [28]	Multicenter	India	35	29.51	—	19.19
			35	31.14	—	20.45
Panwar et al. [29]	Single-center	India	30	—	33.3	22.46
			60	—	26.6	22.48