Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4092534 | SAS Journal | 2007 | 8 Pages |
Abstract
The a priori statistical plan for an IDE study may not adequately address the final distribution of the data. Therefore, statistical analyses more appropriate to the distribution may be necessary to develop meaningful statistical conclusions from the study. A nonparametric statistical analysis of the Charité artificial disc IDE outcomes scores demonstrates superiority for lumbar arthroplasty versus fusion at all follow-up time points to 24 months.
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Authors
Fred H. MD, PhD,