Research Article
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 |
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