Midazolam premedication facilitates mask ventilation in children during propofol induction of anesthesia: a randomized clinical trial

Table 3 Han classification of patients in the intervention and control groups

		Midazolam (n = 60)	Control (n = 60)	P values
HAN Grading Score (for all patients)	1 (Ventilated by mask)	56 (93.3%)	36 (60%)	< 0.001^a
HAN Grading Score (for all patients)	2 (Ventilated by airway)	4 (6.7%)	24 (40%)	< 0.001^a
HAN Grading Score (only for overweight and obese patients)	1 (Ventilated by mask)	22 (91.7%)	11 (61.1%)	0.03^b
	2 (Ventilated by airway)	2 (8.3%)	7 (38.9%)	0.03^b

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