W. Osika et al. / Economics and Human Biology 4 (2006) 398-411 401 Table 1 Associations with angina pectoris (n = 116,587) n without angina (%) n with angina (%) Total n (%) Adjusted odds ratioa 95% CI Weighted odds ratio Income US$ 20000 or more 79847 (70.5) 1831 (55.1) 81678 (70.1) 1.00 1.00 Less than US$ 20000 33417 (29.5) 1492 (44.9) 34909 (29.9) 1.95 1.82, 2.09 1.96 1. Based on Table 1, what are the unadjusted odds of having angina pectoris for those with a family income <$20,000 compared to those with a higher income