Table 2.

Sample size calculation for any given decrease in incidence of intubation induced by NO

Study group	Decrease in incidence	Alpha Error	Power	Sample Size	Each Group	Sample size plus 10%	Definitive Each Group
2.46	80	0.05	0.8	218	109	240	120
3.7	70	0.05	0.8	308	154	340	170
4.93	60	0.05	0.8	450	225	500	250
6.16	50	0.05	0.8	692	346	760	380
7.39	40	0.05	0.8	1146	573	1260	630