Skip to main content
. Author manuscript; available in PMC: 2012 Dec 1.
Published in final edited form as: Ann Thorac Surg. 2011 Dec;92(6):2184–2192. doi: 10.1016/j.athoracsur.2011.06.008

Table 3. Feasibility of analyzing between-center variation.

VSD TOF AVC ASO ASO+VSD Fontan Truncu
s		 Norwood
Number of participants included in analysis 74 74 73 70 65 71 66 69
Aggregate mortality rate 0.64% 1.1% 2.2% 2.9% 7.0% 1.3% 10.9% 19.3%
Sample size required for 50% power to detect 2x increase in mortality 599 338 172 131 48 304 31 17
Number of participants meeting mortality requirement 0 0 0 1 1 0 1 40
Number of participants meeting PLOS requirement (≥5 cases) 73 72 65 60 44 64 33 59