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Table 1 Patient characteristics and outcome

From: Prospective external validation of an accelerated (2-h) acute coronary syndrome rule-out process using a contemporary troponin assay

Parameter

Per protocol group (N= 82)

ITT group (N= 97)a

Missed patientsb(N= 80)

Age (median, IQR)

47 (40 to 55)

48 (40 to 55)

49 (41 to 56)

Gender (N, %)

43, 52%

53, 55%

36, 46%

Arrival by ambulance (N, %)

59, 72%

70, 72%

62, 79%

Killip class 1 (N, %)

81, 99%

95, 98%

76, 96%

History of hypertension (N, %)

17, 21%

20, 21%

16, 20%

History of diabetes (N, %)

5, 6%

5, 5%

2, 3%

History of elevated cholesterol/cholesterol treatment (N, %)

16, 20%

18, 19%

21, 27%

Smoker (N, %)

27, 33%

32, 33%

16, 20%

Family history CAD (N, %)

22, 27%

28, 29%

22, 28%

Hospital admission (N, %)

3, 4%

5, 5%

6, 8%

GRACE risk score (median, IQR)

70 (60 to 88)

70 (59 to 88)

77 (60 to 89)

GRACE freedom from events score (median, IQR)

323 (312 to 333)

323 (311 to 333)

325 (312 to 336)

MACE at 7 days (N, %, 95% CI)

0, 0%, 0% to 4.5%

0, 0%, 0% to 3.8%

0, 0%, 0% to 4.6%

MACE at 30 days (N, %, 95% CI)

0, 0%, 0% to 4.5%

0, 0%, 0% to 3.8%

0, 0%, 0% to 4.6%

MACE or revascularization at 30 days (N, %, 95% CI)

0, 0%, 0% to 4.5%

0, 0%, 0% to 3.8%

1, 1.3%, 0.2% to 6.8%

  1. ITT, intention to treat; IQR, interquartile range; CAD, coronary artery disease; GRACE, Global Risk Acute Coronary Events Registry; MACE, major adverse cardiac events. aIncludes per protocol group; bstandard biomarker interval only, no 2-h specimen.