Journal article
Evaluation of clinical prediction models (part 3): calculating the sample size required for an external validation study
- Abstract:
- An external validation study evaluates the performance of a prediction model in new data, but many of these studies are too small to provide reliable answers. In the third article of their series on model evaluation, Riley and colleagues describe how to calculate the sample size required for external validation studies, and propose to avoid rules of thumb by tailoring calculations to the model and setting at hand.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Version of record, pdf, 251.6KB, Terms of use)
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- Publisher copy:
- 10.1136/bmj-2023-074821
Authors
+ Medical Research Council
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- Funder identifier:
- https://ror.org/03x94j517
- Grant:
- MR/V038168/1
- Programme:
- Better Methods Better Research
+ Cancer Research UK
More from this funder
- Funder identifier:
- https://ror.org/054225q67
- Grant:
- C49297/A27294
+ Engineering and Physical Sciences Research Council
More from this funder
- Funder identifier:
- https://ror.org/0439y7842
- Grant:
- EP/Y018516/1
- Publisher:
- BMJ Publishing Group
- Journal:
- British Medical Journal More from this journal
- Volume:
- 384
- Article number:
- e074821
- Place of publication:
- England
- Publication date:
- 2024-01-22
- Acceptance date:
- 2023-07-29
- DOI:
- EISSN:
-
0959-8138
- ISSN:
-
1759-2151
- Pmid:
-
38253388
- Language:
-
English
- Pubs id:
-
1608268
- Local pid:
-
pubs:1608268
- Deposit date:
-
2025-03-17
- ARK identifier:
Terms of use
- Copyright holder:
- Riley et al
- Copyright date:
- 2024
- Rights statement:
- ©2024 The Authors. This is an Open Access article distributed in accordance with the terms of the Creative Commons Attribution (CC BY 4.0) license, which permits others to distribute, remix, adapt and build upon this work, for commercial use, provided the original work is properly cited. See: http://creativecommons.org/licenses/by/4.0/.
- Licence:
- CC Attribution (CC BY)
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