The BioImage Study: Novel approaches to risk assessment in the primary prevention of atherosclerotic cardiovascular disease—study design and objectives

BioImage Study flowchart.

Putative relative event rates (A) by age, gender, and number of claims-based risk indicators and (B) by age in relation to presence or absence of specific claims-based risk indicators. Data are based on 2-year follow-up in subjects from population described in Table I. The event rate for the total population =1.00. Pearson χ² tests for each age group, gender, and indicator (except hyperlipidemia) were significant at P < .001.

Enrolled study population in comparison to the eligible population (Chicago location, preliminary data) for age, gender, income, and risk indicators. A, Distribution of female and male gender among BioImage Study participants (P) by age group in comparison with the pool of eligible members (E) from which they were recruited. B, Household income as determined based on US Census information using census track mapping for BioImage Study participants, those eligible to participate, and those living in the Chicago metropolitan statistical area (Chicago-at-large) mapped to the same zip codes from which the eligible population is drawn. C, Presence of claims-based risk indicators among BioImage Study participants in comparison with the pool of eligible members from which they were recruited.