The Duke Treadmill score is a prognostic tool based on the duration of exercise, ST-segment deviation (depression or elevation), and the presence and severity of angina during exercise.

References
Mark DB, Hlatky MA, Harrell FE, Lee KL, Califf RM, Pryor DB. Exercise treadmill score for predicting prognosis in coronary artery disease. Ann Int Med 1987; 106:793-800.
View Abstract

Mark DB, Shaw L, Harrell FE Jr. et al. Prognostic value of a treadmill exercise score in outpatients with suspected coronary artery disease. N Engl J Med 1991; 325:849-53.
View Abstract

Alexander KP, Shaw L, Delong ER, Mark DB, Peterson ED. Value of exercise treadmill testing in women. J Am Coll Cardiol 1998; 32:1657-64. (gender based Prognosis/Vessel Chart)
View Abstract

Shaw LJ, Hachamovitch R, Redberg RF. Current evidence on diagnostic testing in women with suspected coronary artery disease: choosing the appropriate test. Cardiol Rev 2000;8(1):65–74.
View Abstract

Shaw LJ et al Use of a prognostic treadmill score in identifying diagnostic coronary disease subgroups. Circulation 1998; 98; 1622-30. (nongender based vessel chart)
View Abstract     View Full Text