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The internal logic of the Canadian Cardiovascular Society scale for grading angina pectoris: a first appraisal.

https://arctichealth.org/en/permalink/ahliterature222769
Source
Can J Cardiol. 1992 Nov;8(9):947-53
Publication Type
Article
Date
Nov-1992
Author
W H Kong
H. Llewellyn-Thomas
C D Naylor
Author Affiliation
University of Toronto Medical Faculty, Ontario.
Source
Can J Cardiol. 1992 Nov;8(9):947-53
Date
Nov-1992
Language
English
Publication Type
Article
Keywords
Adult
Aged
Angina Pectoris - classification - physiopathology
Canada
Cardiology
Humans
Middle Aged
Physical Exertion
Rest
Societies, Medical
Walking
Abstract
To assess the internal logic (content validity) of the Canadian Cardiovascular Society (CCS) scale for grading angina pectoris.
Forty-one consenting patients with stable angina of at least two months duration, admitted to a tertiary centre for coronary angiography.
Patients completed a supervised questionnaire with closed-ended questions. Key questions included: usual numbers of blocks walked on the level or flights of stairs climbed before onset of chest pain; frequency with which chest pain occurred at the usual threshold distance; presence of rest pain; and influence of modifiers suggested for class II of the scale such as walking uphill and into the wind.
Agreement of four questionnaire-defined 'stair-climbing grades' and 'walking grades' was statistically significant (P
PubMed ID
1486545 View in PubMed
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