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. Author manuscript; available in PMC: 2017 Aug 30.
Published in final edited form as: Stat Methods Med Res. 2012 Oct 14;25(1):488–501. doi: 10.1177/0962280212460442

Table 1.

Cardiac Risk Factors in BARI 2D

Risk Factor Goal1 Collection Schedule Parameterization
LDL <100 mg/dL Baseline, 6 months, 1 year and annually thereafter Indicator variables model three groups; LDL<100, LDL>100 and LDL not computed as Triglycerides > 400
Non-HDL <130 mg/dL Indicator variable indicating in-control status
Triglycerides <150 mg/dL Indicator variable indicating in-control Status
Blood Pressure SBP <130 mmHg
DBP <80 mmHg		 Baseline, monthly for the first 6 months, and quarterly thereafter Indicator variables modeled 4 in- vs. out-of control groups due to high correlations
HbA1c <7.0% Baseline, 1 month, 3 months, 6 months and semi-annually thereafter Indicator variable indicating in-control status
Smoking Non-smoker Baseline and annually thereafter Indicator variable indicating in-control status
1

From the American College of Cardiology and/or the American Diabetes Association