Table 2.

Time to start of ventilation, ventilation time, assistance by supervisor and conversion to alternative device by trial arm

	LMA (intervention) n=24 Mean (SD)	Face mask (comparator) n=25 Mean (SD)	p Value	Effect of the intervention Mean ratio (95% CI)
Start of PPV (s)	60 (11)	68 (36)	0.26	0.88 (0.70 to 1.10)
Ventilation time (s)	93 (52)	140 (90)	0.02	0.67 (0.47 to 0.93)
	n (%)	n (%)		OR (95% CI)
Assistance from the supervising physician	3 (13)	6 (24)	0.46	0.46 (0.07 to 2.52)
Conversion to alternative device	0	11 (44)	0.0002	0.00 (0.00 to 0.29)

PPV, positive pressure ventilation.