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Table 2 Glottic view according to the POGO score (%) in a normal airway.

From: Comparison of the McGrath® Series 5 and GlideScope® Ranger with the Macintosh laryngoscope by paramedics

Trial Macintosh McGrath® GlideScope®
1 72.8 ± 18 83 ± 21 81.5 ± 24.5
2 68.5 ± 22.9 87.2 ± 22.9 85.0 ± 19.7
3 76.7 ± 19.9 96.3 ± 6.1 83.5 ± 20.3
4 68.7 ± 23.6 90.5 ± 16.5 84 ± 18.2
5 62.7 ± 27.2 92.7 ± 10.8 79.5 ± 28.6
6 59.2 ± 24.5 92.7 ± 10.7 80 ± 25.2
  1. Mean ± SD.