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Table 1 Coding of 25 Risk Factors for Strategy 1

From: Risk factors for coronary artery disease and the use of neural networks to predict the presence or absence of high blood pressure

Category Coded 0 Coded 1  
Age at beginning ≥40 ≥40  
Chol, beginning ≥200 ≥200  
Chol, end ≥200 ≥200  
Chol, change negative positive  
Glu minimum <110 ≥110  
Glu maximum ≥110 ≥110  
LDL minimumA ≥130 ≥130  
LDL maximumA ≥130 ≥130  
HDL minimum ≥35 ≥35  
HDL maximum ≥35 ≥35  
Tri minimum ≥150 ≥150  
Tri maximum ≥150 ≥150  
BMI, beginningB ≥25 ≥25  
BMI, endB ≥25 ≥25  
BMI, changeB negative positive  
Sex female male  
3-column binary coding
cig smoked never always 1–20 >20 at any time
alcohol always < 10 g always 10–60 > 60 at any time
age at death alive (at last measure) ≥ 50 yrs 50 yrs
  1. A LDL values were calculated from the standard formula: LDL = total cholesterol – HDL – Triglycerides/5. B BMI was calculated from the formula: BMI = 703 × Wt/(Ht)2 (Units in pounds and inches).
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