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Table 1 Physical activity (PA) level and changes in PA level across the three periods of life among 80,202 postmenopausal women in the Norwegian Women and Cancer Study

From: Physical activity and the risk of postmenopausal breast cancer - the Norwegian Women and Cancer Study

   PA level (%)
  N Very low Low Moderate High Very high
At age 14a 77 623 2.2 12.1 34.6 34.1 17.0
At age 30a 78 477 1.7 12.2 42.9 32.0 11.1
At enrollment 80 202 5.2 20.9 41.8 25.6 6.4
   Changes in PA level b (%)
   Inactive-no change Active to inactive Inactive to active Active-no change  
Age 14 to age 30 77 272 5.3 8.7 9.0 77.1  
Age 14 to enrollment 77 623 4.7 21.4 9.6 64.3  
Age 30 to enrollment 78 477 8.3 17.8 5.6 68.3  
  1. aMissing at age 14, 3.2%; age 30, 2.2%, compared to enrollment.
  2. bInactive: very low or low PA level. Active: Moderate, high or very high PA level.
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Journal of Negative Results in BioMedicine

ISSN: 1477-5751

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