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Bittner, V., Weiner, D.H., Yusuf, S., Rogers, W.J., McIntyre, K.M., Bangdiwala, S.I., et al. (1993) Prediction of Mortality and Morbidity with a 6-Minute Walk Test in Patients with Left Ventricular Dysfunction. JAMA, 270, 1702-1707.
http://dx.doi.org/10.1001/jama.1993.03510140062030

has been cited by the following article:

• TITLE: A Comparison of the NYHA Classification and the Duke Treadmill Score in Patients with Cardiovascular Disease

  AUTHORS: Sandra L. Carroll, Karen Harkness, Michael Hugh McGillion

  KEYWORDS: Nursing Practice, Function, Measurement, Cardiovascular Disease, Framework

  JOURNAL NAME: Open Journal of Nursing, Vol.4 No.11, October 27, 2014

  ABSTRACT: Aim: A discussion of the measurement of functional status in cardiovascular research. Background: Selection of appropriate outcome measures and instrumentation is vital for nurse researchers to ensure that outcomes align conceptually and are measured using reliable and valid tools. Functional status is a well-known outcome in cardiovascular research—however attention to underlying conceptual differences that may influence choices of whether to include subjective or objective measures is needed. Design: This work is a discussion paper: seminal research reporting the development, validation, and reliability testing of the NYHA classification system and the Duke Treadmill Score. Implications for nursing: Conceptually clarity and comprehensive appraisal of the reliability and validity of outcome measures in nursing research are essential to ensure high level of quality outcomes that will benefit patients.