National Health and Nutrition Examination Surveys

Describe advantages and disadvantages of case-control study

2. When would you calculate risk difference and why?

Figure 3. Prevalence of supplemental calcium use in women aged 60 and over, by racial and ethnic group: United States, 1988-2006 70 Total Non-Hispanic white Non-Hispanic black Mexican American 165.7 61.0 60 158.9 53.8 252.3 50 40 239.5 33.8 Percent 30 28.2 129.9 29.5 223.2 20 12.4 10 0 1988-1994 1999-2002 2003-2006 Years 1Significantly different from non-Hispanic black and Mexican-American women. 2Significantly different from non-Hispanic black women. NOTE: 1968-1904 rates significantly different from those of the 1999-2002 and 2003-2005 survey periods. SOURCE: CDC/NCHS, National Health and Nutrition Examination Surveys

3.. Use above Figure 3 to answer following questions.

A, Identify at least 3 findings from the figure above. 

b. Based on the figure which group would you target for education intervention to improve calcium supplementation intake? Explain.

C. What are some advantages for conducting a cross-sectional study?

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