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. Author manuscript; available in PMC: 2011 Mar 10.
Published in final edited form as: Int J Stroke. 2008 May;3(2):138–144. doi: 10.1111/j.1747-4949.2008.00190.x

Table 2.

Power for Economic Analyses

Mean Annual Cost $60,157
Standard Deviation* $30,078
Reduction in cost (10%)  $6,016
Percent Power 80%
*

assuming that control variables explain 50% of the variance in total cost