KEY TO VARIABLES IN ERLANGER CHEST PAIN DATABASE

SECG_ECG = Findings on serial ECG: 1: new/evolving injury; 2: new/evolving ischemia; 3: non-diagnostic changes; 4: no changes POS_SECG = new/evolving injury or ischemia (1: yes; 0: no) STRESS_CAT = findings on nuclear stress testing: 1= reversible ischemia; 2= no reversible ischemia; 3=borderline reversible ischemia ................
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