External validation of clinical prediction models: simulation-based sample size calculations were more reliable than rules-of-thumb
<br><strong>Introduction<br></strong> Sample size “rules-of-thumb” for external validation of clinical prediction models suggest at least 100 events and 100 non-events. Such blanket guidance is imprecise, and not specific to the model or validation setting. We investigate fac...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Elsevier
2021
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