KEY TO VARIABLES IN ERLANGER CHEST PAIN DATABASE
I. PATIENT DEMOGRAPHICS:
Patient = Patient study number
HR0_CPCAT = Baseline (0 hour) chest pain category (categories 2-4)
HR2_CPCAT = 2 hour chest pain category (all category 3 in this patient population)
Age = age of patient in years
AGE$ = Age subdivided into four categories: < 40, 41-50, 51-60, 61-70, and > 70
RACE = 1: white, 2: Black, 3: Other
SEX = 1: male, 0 female
II. RISK FACTORS
HXMI = prior history myocardial infarction (1: yes; 0: no)
HX_PCI_CABG = prior history of percutaneous coronary intervention or bypass surgery (1: yes;
0: no)
HXCAD = prior history of coronary artery disease (1: yes; 0: no)
DM = patient with prior/current diagnosis of diabetes (1: yes; 0: no)
Type_DM [for patients with DM=1] (1: Insulin dependent DM; 0= NIDDM)
HBP = patient with prior/current diagnosis of hypertension (1: yes; 0: no)
CIG = patient with current or recent (< 1 year) regular cigarette use (1: yes; 0: no)
LIPID = patient with prior/current diagnosis of hyperlipidemia (1: yes; 0: no)
FAMILY HISTORY = patient with family hx of coronary artery disease in first degree relative <
age 60 (1: yes; 0: no)
OBESE = patient with BMI > 27 kg/m2 (1: yes; 0: no)
NUMRISK = number risk factors
NUMRISK$ = number risk factors divided in categories: 0-1, 2, 3, and 4-6
III. OUTCOME VARIABLES
ESC_AMI = acute myocardial infarction as defined by updated ESC/AHA/ACC criteria (1: yes;
0: no)
ESC_MI = patient with acute myocardial infarction (rising curve of cardiac markers) and
patients with completed myocardial infarction (falling curve of cardiac markers); (1: yes;
0: no) [Secondary Outcome Variable]
D30_CABG = Bypass surgery < 30 days of initial emergency department visit (1: yes; 0: no)
D30_PCI = percutaneous coronary intervention < 30 days of initial emergency department visit
(1: yes; 0: no)
D30_STENOSIS = coronary arteriogram revealing stenosis > 70% not amenable for intervention
< 30 days of initial emergency department visit (1: yes; 0: no)
D30_LTCOP = life-threatening complication < 30 days of initial emergency department visit (1:
yes; 0: no)
D30DEATH = Cardiac death < 30 days of initial emergency department visit (1: yes; 0: no)
D30_ACS = Acute coronary syndrome < 30 days of initial emergency department visit (i.e.
AMI, MI, CABG, PCI, STENOSIS, LTCOMP, and/or DEATH); (1: yes; 0: no) [Primary
Outcome Variable]
IV. DIAGNOSTIC TEST RESULTS
TN_0HR = baseline (time 0 hour) troponin value
TN_2HR = 2 hour troponin value
DELTA_TN = 2 hour delta troponin (i.e. 2 hour troponin value minus baseline value)
POS_TN_0 = baseline troponin > 0.8 ng/ml (1:yes; 0:no)
POS_TN_DEL = 2 hour delta troponin > +0.1 ng/ml
ECG_CAT = Findings on initial ECG: 1: Injury; 2: Ischemia; 3: Infarction, BBB, or
hypertrophy; 4: normal or non-diagnostic
INJURY_ECG = injury on initial ECG (1: yes; 0: no)
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
POS_STRESS = reversible ischemia on nuclear stress testing (1: yes; 0: no)
V. RISK STRATIFICATION SCORES
MOR_SCORE = Morise risk stratification score
MOR_RISK$ = Morise score stratified into “low,” “intermediate,” and “high risk scores”
MOD_MOR_S = Modified Morise score = Morise score after excluding estrogen status
MOR_SYMPT = Morise chest pain score: 1= non-cardiac chest pain; 3= atypical anginal; 5=
typical angina
HO_SCORE = Ho risk score
FRAM_SCORE = Framingham Risk Score
HEART = HEART Score
HEART_WT = weighted heart strain
HEARTS3 = HEARTS3 Score
REFERENCES FOR RISK STRATIFICATION SCORES:
Morise Score:
Morise AP, Haddad J, Beckner D, et al. Development and validation of a clinical score to
estimate the probability of coronary artery disease in men and women presenting with suspected
coronary disease. Am J Med 1997;102;:350-356.
Ho score:
Ho K, Miller TD, Hodge DO, et al. Use of a simple clinical score to predict prognosis of
patients with normal or mildly abnormal resting electrocardiographic findings undergoing
evaluation for coronary artery disease. Mayo Clin Proc 2002;77:515-521.
Framingham score:
Anderson KM, Wilson PWF, Odell PM, Kannel WB. An updated coronary risk profile.
Circulation 1991;83:356-362.
HEART, HEART weighted, and HEARTS3 score:
Fesmire FM, Martin EJ, Cao Y, Heath GW. Improving risk stratification in chest pain patients:
The Erlanger HEARTS3 score. Am J Emerg Med 2012 (in press).