Prevalence of CHD, angina pectoris and heart attack over years of living in the USA (, 0–4 years; , 5–9 years; , 10–14 years; , 15 years or more) among low-income, working-age immigrant adults. Data source is the pooled National Health Interview Survey 2011–2015. Values are proportions, with their se represented by vertical bars. Estimates account for complex survey design and confidence intervals are estimated at the 95 % level