25. Read 275280 Relative Risk is ..... Men: ? / ? = ? women ? / ? =? [ncidence and prevalence rates can also be used to compare the rates of ec across settings (places), people, or time. We therefore need measures of (a) 4 pe 3 is 1 is 0 . The ratio of two measures of disease frequency is called the rela(2) prish (as discussed in chapter 10). The difference between two measures of Felase firquency is called the risk difference, or rate difference. In some cases, in in olves a measure in an exposed group (or groups) and a measure in an esposed or comparison group. In other cases, it may not-for example, you ay y y nnt to compare stroke rates among blacks versus whites, as we did earlier. Metabolic syndrome (MS), also called insulin resistance syndrome, west three of the following risk factors: high plasma glucose, low high-density poproteins (HDL), high triglycerides, a large waist circumference, and high bood pressure. A meta-analysis (Gami et al. 2007) that combined 37 sepapre sulies showed that MS puts both men and women at increased risk of docloping cardiovascular disease (CVD). Suppose that you did a large study of 10,000 men and 10,000 women and followed them for ten years. Of the men, 3,000 had metabolic syndrome, compared with 3,500 women. The incidence of CVD among men was 6 per 100 for those with MS and 3.03 per 100 for those without. Among women, the incidence of CVD was 5 per 100 for thof with MS and 1.9 per 100 for those without