Table 3.

Measures of agreement stratified by race and geographic location (n=116)

	PPA*	NPA*	AR	Kappa K (SE)
CHEST PAIN
RACE:
African American (n=51)	97%	86%	92%	0.84 (0.08)
European American (n=65)	92%	87%	91%	0.75 (0.10)
GEOGRAPHY
South (n=87)	95%	88%	93%	0.84 (0.06)
Non-South (n=29)	89%	80%	86%	0.69 (0.14)
HEART FAILURE
RACE:
African American (n=51)	100%	87%	92%	0.84 (0.08)
European American (n=65)	89%	96%	94%	0.85 (0.07)
GEOGRAPHY
South (n=87)	93%	92%	92%	0.82 (0.06)
Non-South (n=29)	100%	95%	97%	0.92 (0.07)
CORONARY REVASCULARIZATION
RACE:
African American (n=51)	71%	98%	94%	0.74 (0.14)
European American (n=65)	100%	93%	95%	0.90 (0.06)
GEOGRAPHY
South (n=87)	91%	94%	93%	0.83 (0.07)
Non-South (n=29)	100%	100%	100%	1.00 (0.00)
MYOCARDIAL INFARCTION
RACE:
African American (n=51)	76%	97%	90%	0.77 (0.10)
European American (n=65)	81%	89%	86%	0.71 (0.09)
GEOGRAPHY
South (n=87)	85%	92%	90%	0.78 (0.07)
Non-South (n=29)	60%	95%	83%	0.59 (0.16)

PPA: Positive Percent Agreement = [A / (A+C)] * 100 (see Table 1)

NPA: Negative Percent Agreement = [D / (B+D)] * 100 (see Table 1)

AR: Percent Agreement Rate = [(A+D) / (A+B+C+D)] * 100 (see Table 1)

SE: Standard Error of measurement

^*Blinded outcomes were used as reference