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Table 2 Regression coefficients, contributions to the CHD-score, ORs (adjusted) for the subpopulation with cardiovascular risks (n = 435).

From: Ruling out coronary heart disease in primary care patients with chest pain: a clinical prediction score

Variables Regression Coefficient Score ORadjusted *
ORadj (95% CI)
Age-sex categories    
   M < 55 yr or F < 65 yr 0 0 1 (reference)
   M 55-64 yr or F 65 to 74 yr 1.99 2 7.3 (2.4 to 22.5)
   M ≥ 65 yr or F ≥ 75 yr 2.44 2 11.5 (4.2 to 31.5)
Known cardiovascular risk    
   None 0 0 1 (reference)
   1 to 2 1.76 2 5.8 (1.2 to 29.0)
   ≥3 1.91 2 6.7 (1.3 to 35.2)
Known previous history of CVD 1.89 2 6.7 (3.2 to 13.8)
Duration of chest pain 1 to 60 minutes 1.09 1 3.0 (1.4 to 6.2)
Area of pain described as substernal 1.65 2 5.2 (2.5 to 10.9)
Precipitating with exertion 0.75 1 2.1 (1.0 to 4.3)
Absence of tenderness 1.22 1 3.4 (1.5 to 8.0)
  1. * Adjusted for variables shown in this table.
  2. CHD = coronary heart disease; CVD = cardio-vascular disease; OR = odds ratio;
  3. ORadj = adjusted odds ratio
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