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. Author manuscript; available in PMC: 2011 Mar 24.
Published in final edited form as: JAMA. 2010 Mar 24;303(12):1173–1179. doi: 10.1001/jama.2010.312

Figure 1.

Figure 1

Physical Activity Levelsa over Study Duration, Women’s Health Study

Numbers below the x-axis indicate the number of women contributing data to each time period.

a See footnote to Table 1 regarding physical activity levels.