Table 7. Weights assigned by the history and physical dataset.

	Model 1	Model 2	Model 3	Model 4	Model 5	Average
Age	0.093	0.063	0.111	0.060	0.071	0.080
Pain precipitated by exertion or stress	0.037	0.057	0.089	0.048	0.043	0.055
Pain relieved by rest or NTG	0.037	0.057	0.078	0.042	0.043	0.051
Heavy pain	0.037	0.044	0.078	0.042	0.050	0.050
Substernal chest pain	0.047	0.051	0.089	0.006	0.057	0.050
Duration of pain in minutes	0.023	0.032	0.067	0.054	0.035	0.042
Pain level of severity	0.047	0.025	0.067	0.036	0.028	0.041
Male	0.009	0.032	0.056	0.030	0.035	0.032
Weak pulse on exam	0.023	0.019	0.011	0.036	0.043	0.026
Irregular heart rhythm on exam	0.023	0.019	0.011	0.024	0.050	0.025
Uses cocaine	0.014	0.019	0.011	0.048	0.021	0.023
Currently tachycardic on exam	0.023	0.019	0.011	0.024	0.035	0.023
History of diagnosed CAD	0.019	0.019	0.011	0.042	0.021	0.022
Previous myocardial infarction	0.014	0.019	0.011	0.042	0.021	0.022
Currently hypoxic on exam	0.023	0.019	0.011	0.024	0.028	0.021
Currently on insulin	0.023	0.019	0.011	0.030	0.021	0.021
History of hypertension	0.019	0.019	0.011	0.024	0.028	0.020
History of diabetes	0.019	0.019	0.011	0.030	0.021	0.020
Edema present on exam	0.023	0.019	0.011	0.018	0.028	0.020
Currently tachypneic on exam	0.023	0.019	0.011	0.018	0.028	0.020
Currently hypotensive on exam	0.023	0.019	0.011	0.024	0.021	0.020
Currently experiencing dyspnea	0.023	0.019	0.011	0.024	0.021	0.020
Currently on a statin medication	0.023	0.019	0.011	0.024	0.021	0.020
Currently on aspirin	0.023	0.019	0.011	0.024	0.021	0.020
Current smoker	0.014	0.019	0.011	0.030	0.021	0.019
Family history of CAD	0.019	0.019	0.011	0.024	0.021	0.019
Currently hypertensive on exam	0.023	0.019	0.011	0.018	0.021	0.019
Currently bradycardic on exam	0.023	0.019	0.011	0.018	0.021	0.019
Currently experiencing dizziness	0.023	0.019	0.011	0.018	0.021	0.019
Currently experiencing nausea	0.023	0.019	0.011	0.018	0.021	0.019
Currently experiencing palpitations	0.023	0.019	0.011	0.018	0.021	0.019
Currently on a BP medication	0.023	0.019	0.011	0.018	0.021	0.019
History of stroke	0.019	0.019	0.011	0.018	0.021	0.018
Currently on an NSAID	0.023	0.019	0.011	0.012	0.021	0.017
Currently married	0.023	0.019	0.011	0.006	0.021	0.016
Murmur present on cardiac auscultation	0.014	0.019	0.011	0.012	0.021	0.015
Moderate to heavy alcohol use	0.014	0.019	0.011	0.012	0.021	0.015
Pain worse with deep breath	0.014	0.019	0.011	0.012	0.021	0.015
Pain worse with lying down	0.014	0.019	0.011	0.012	0.021	0.015
African American	0.005	0.013	0.022	0.012	0.014	0.013
Currently febrile on exam	0.023	0.019	0.011	0.012	-0.014	0.010
Abnormal lung sounds on auscultation	0.014	0.019	0.011	0.012	-0.021	0.007
Pain reproducible on palpation	0.014	0.019	0.011	-0.030	-0.057	-0.009
Burning type of pain	-0.023	-0.019	-0.033	-0.030	-0.035	-0.028
Total	1.000	1.000	1.000	1.000	1.000	1.000

NTG, nitroglycerin; CAD, coronary artery disease; BP, blood pressure; NSAID, nonsteroidal anti-inflammatory drug.