. Author manuscript; available in PMC: 2020 Apr 23.

Published in final edited form as: Anesth Analg. 2018 Jul;127(1):151–156. doi: 10.1213/ANE.0000000000002621

Table 2.

Raw Ventilation Scores and Score Differences by Mask Type Before and After NMB

Timing	Mask Type	Han Score		Han Score
Timing	Mask Type	Mean (SD)	Median (25%, 75%)	Mean (SD)	Median (25%, 75%)
Pre-NMB	Standard	1.38 (0.60)	1 (1, 2)	1.70 (1.66)	1 (1, 3)
	Tao	1.22 (0.52)	1 (1, 1)	1.30 (1.42)	1 (0, 2)
	Difference	0.15 (0.43)^a	0 (0, 0)^a	0.39 (0.76)^a	0 (0, 1)^a
Post-NMB	Standard	1.23 (0.51)	1 (1, 1)	1.14 (1.22)	1 (0, 2)
	Tao	1.20 (0.49)	1 (1, 1)	0.86 (1.16)	1 (0, 1)
	Difference	0.03 (0.24)	0 (0, 0)	0.28 (0.58)^a	0 (0, 1)^a

Differences are calculated by taking the ventilation score using the standard mask and subtracting the score using the Tao mask. Data are presented as mean (SD) and as median (25th, 75th percentile).

Abbreviations: NMB, neuromuscular blockade; SD, standard deviation.

P < .001