Assessment of fitness for surgical procedures and the variability of anaesthetists' judgments.

A Coefficient of Agreement for Nominal Scales

1960 • 37,524 citations

Weighted kappa: Nominal scale agreement provision for scaled disagreement or partial credit.

1968 • 7,926 citations

Measuring nominal scale agreement among many raters.

1971 • 7,731 citations

Multifactorial Index of Cardiac Risk in Noncardiac Surgical Procedures

1977 • 2,734 citations

ASA Physical Status Classifications

1978 • 1,898 citations

Maximum Likelihood Estimation of Observer Error-Rates Using the EM Algorithm

1979 • 1,613 citations

Primer on Certain Elements of Medical Decision Making

1975 • 1,168 citations