Outcome based subgroup analysis: a neglected concern
<p>Abstract</p> <p>Background</p> <p>A subgroup of clinical trial subjects identified by baseline characteristics is a proper subgroup while a subgroup determined by post randomization events or measures is an improper subgroup. Both types of subgroups are often analyze...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2009-05-01
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| Series: | Trials |
| Online Access: | http://www.trialsjournal.com/content/10/1/33 |