Table 1.

Characteristics of WHI breast cancer survivors according to prediagnosis physical activity category (N = 4,643)

 Sports/recreational physical activity, MET-h/wk
0 (n = 1,119)>0–2.9 (n = 473)3–8.9 (n = 1,065)≥9 (n = 1,986)
Age at enrollment, y63.9 ± 7.163.5 ± 6.863.4 ± 7.163.8 ± 7.1
BMI at enrollment, kg/m230.2 ± 7.129.6 ± 6.028.1 ± 5.626.7 ± 5.1a, b
High school graduate, %94969597
Race/ethnicity, %
 African American10965
 Non-Hispanic white83858790
 Hispanic white3442
 Other4233
Disease stage, %
 Local70757374
 Regional30252726
ER status, %
 Positive73777776
 Negative16151413
 Unknown118911
HER2 status, %
 Positive14101211
 Negative48545147
 Unknown38363742
Type 2 diabetes6642a, b
Current smoker, %9764a, b

a≥9 MET-h/wk significantly different from 0 MET-h/wk, P < 0.05.

b≥9 MET-h/wk significantly different from >0–2.9 MET-h/wk, P < 0.05.