Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 11

Describe the influence of mental illness and heart disease on activity limitations according to age group in adults (see Figure 1).

FIGURE 1 Activity limitation according to one or more chronic health conditions among adults in the United States, 2004–2005. *Unreliable estimates. From National Center for Health Statistics. Health, United States, 2007 With Chartbook on Trends in the Health of Americans. Hyattsville, MD; 2007; 43. Note that children with more than one chronic condition causing activity limitation are counted in each category.

Step 1 of 3

Activity limitation is defined as the people who face difficulty in doing certain activities and work. From 1997, the National Health Interview Survey collected data in which activity limitation is described annually.