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<td><img alt="" src="http://www.novoproso.com/images/SAS-PH4.jpg" /></td>
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<p>
SAS/PH-Clinical software is a new SAS Instnute software product for increasing the productivity of
clinical reviewers within drug or biotechnology research organizations. Atthough the product is designed to
work with a variety of clinical data structures, the internal algorithms handle some structures more
efficiently than others. In addnion to data set structures, any aspect of the clinical data that requires
a view overlay affects the efficiency of the software. For example, n variables must be renamed in the study
definnion process, SAS/PH-Clinical software overlays a DATA step view on the original clinical data. Before
any patient group can be created, the software generates this view and reads n, rather than reading
the original data. This paper discusses aspects of clinical data structures that can affect performance.
The discussion also provides techniques for defining studies quickly, including using the FASTLOAD utility,
creating new variables, and obtaining administrative reports. </p></td></tr></tbody></table>