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Sample Size MeSH Descriptor Data 2025

MeSH Heading: Sample Size
Tree Number(s): E05.318.370.762; E05.581.500.902; N05.715.360.325.692; N06.850.520.445.762
Unique ID: D018401
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D018401
Annotation: usually NIM with specific population or circumstances sampled (IM); not restricted to epidemiology
Scope Note: The number of units (persons, animals, patients, specified circumstances, etc.) in a population to be studied. The sample size should be big enough to have a high likelihood of detecting a true difference between two groups. (From Wassertheil-Smoller, Biostatistics and Epidemiology, 1990, p95)
Public MeSH Note: 95
History Note: 95
Date Established: 1995/01/01
Date of Entry: 1994/02/28
Revision Date: 2018/06/29

No Qualifiers

Investigative Techniques [E05]
- Epidemiologic Methods [E05.318]
  - Epidemiologic Research Design [E05.318.370]

Investigative Techniques [E05]
- Methods [E05.581]
  - Research Design [E05.581.500]

Health Care Quality, Access, and Evaluation [N05]
- Quality of Health Care [N05.715]
  - Health Care Evaluation Mechanisms [N05.715.360]
    - Epidemiologic Research Design [N05.715.360.325]

Environment and Public Health [N06]
- Public Health [N06.850]
  - Epidemiologic Methods [N06.850.520]
    - Epidemiologic Research Design [N06.850.520.445]

Sample Size Preferred

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