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Cited by 978

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

Comparative reproducibility and validity of systems for assessing cardiovascular functional class: advantages of a new specific activity scale.

Open access
Goldman, L, Hashimoto, B, Cook, E F, Loscalzo, A·1981·Circulation

Abstract

Reproducibility and validity are prerequisites for a useful clinical scale. We therefore prospectively tested the reproducibility and validity of the New York Heart Association criteria and the Canadian Cardiovascular Society criteria for the assessment of cardiac functional class and compared these criteria with a new Specific Activity Scale based on the metabolic costs of specific activities. The New York Heart Association estimates made by two physicians had a reproducibility of only 56%, and only 51% of the estimates agreed with treadmill exercise performance. Functional estimates based on the Canadian Cardiovascular Society criteria were significantly more reproducible (73%), but not significantly more valid. The Specific Activity Scale was as reproducible as the Canadian Cardiovascular Society criteria, and its 68% validity was significantly higher than the validities of the other systems. The easily administered Specific Activity Scale was equally reproducible and valid when used by a nonphysician. It was especially better than the other systems for the evaluation of true class II patients and was significantly less likely to underestimate treadmill performance. Although no set of questions can perfectly predict exercise tolerance, the Specific Activity Scale deserves wider prospective testing.

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Crossref · 10.1161/01.cir.64.6.1227

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Metadata

Authors
Goldman, L., Hashimoto, B., Cook, E. F., & Loscalzo, A.
Venue
Circulation
Published
1981-12
Volume
64
Issue
6
Pages
1227-1234
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2060568260
Cited by
978
References
2
FWCI
4.80
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Comparative reproducibility and validity of systems for assessing cardiovascular functional class: advantages of a new specific activity scale. https://app.cochat.ai/papers/10.1161/01.cir.64.6.1227
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Goldman, L., Hashimoto, B., Cook, E. F., & Loscalzo, A. (1981). Comparative reproducibility and validity of systems for assessing cardiovascular functional class: advantages of a new specific activity scale. Circulation. https://doi.org/10.1161/01.cir.64.6.1227

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.