The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Sample Size Estimation: How Many Individuals Should Be Studied?
Abstract
The number of individuals to include in a research study, the sample size of the study, is an important consideration in the design of many clinical studies. This article reviews the basic factors that determine an appropriate sample size and provides methods for its calculation in some simple, yet common, cases. Sample size is closely tied to statistical power, which is the ability of a study to enable detection of a statistically significant difference when there truly is one. A trade-off exists between a feasible sample size and adequate statistical power. Strategies for reducing the necessary sample size while maintaining a reasonable power will also be discussed.
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Citations
Cites
The Abuse of Power: The Pervasive Fallacy of Power Calculations for Data Analysis
Hoenig, J. M., & Heisey, D. M. (2001) · The American Statistician · doi:10.1198/000313001300339897 · Cited by 2,046 · cited 1×
“However, retrospective power analysis is controversial because it can be shown that observed power is completely determined by the P value and therefore cannot add any additional information to its interpretation ( 19 ).”
BackgroundFreiman, J. A., Chalmers, T. C., Smith, H., & Kuebler, R. R. (1978) · New England Journal of Medicine · doi:10.1056/nejm197809282991304 · Cited by 1,628
Frison, L., & Pocock, S. J. (1992) · Statistics in Medicine · doi:10.1002/sim.4780111304 · Cited by 593
Cited by
Wang, X., & Cheng, Z. (2020) · CHEST · doi:10.1016/j.chest.2020.03.012 · Cited by 2,214
Checklist for Artificial Intelligence in Medical Imaging (CLAIM): a guide for authors and reviewers
Mongan, J., Moy, L., & Kahn, C. E. (2020) · Radiology: Artificial Intelligence · doi:10.1148/ryai.2020200029 · Cited by 1,443
Preparing Medical Imaging Data for Machine Learning
Willemink, M. J., Koszek, W. A., Hardell, C., Wu, J., Fleischmann, D., Harvey, H., Folio, L. R., Summers, R. M., Rubin, D. L., & Lungren, M. P. (2020) · Radiology · doi:10.1148/radiol.2020192224 · Cited by 1,020
Park, S. H., & Han, K. (2018) · Radiology · doi:10.1148/radiol.2017171920 · Cited by 894
Sample Size Estimation in Clinical Research
Wang, X., & Ji, X. (2020) · Chest · doi:10.1016/j.chest.2020.03.010 · Cited by 452
Metadata
- Authors
- Eng, J.
- Venue
- Radiology
- Published
- 2003-05
- Volume
- 227
- Issue
- 2
- Pages
- 309-313
- ISSN
- 0033-8419 (ISSN-L)
- 1527-1315
- OpenAlex
- W2049509720
- Cited by
- 811
- References
- 3
- FWCI
- 4.24
- Type
- journal article
- Language
- en
- Open access
- closed
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