RPA at baselinea, h/wk/y | RPA at 10-year follow-upb, h/wk/y | Overall | Observed person-years | Cases, no. | Adjusted HR (95Â % CI) |
---|---|---|---|---|---|
Breast cancer overall | |||||
 No change | |||||
  Low (≤0.50) | Low (≤0.50) | 24,028 | 396,185 | 692 | Referent |
  Intermediate (0.51–3.50) | Intermediate (0.51–3.50) | 6273 | 104,479 | 155 | 1.01 (0.84–1.21) |
  High (≥3.51) | High (≥3.51) | 2462 | 41,105 | 42 | 0.71 (0.52–0.98) |
 Increasing | |||||
  Low (≤0.50) | Intermediate (0.51–3.50) | 5640 | 93,840 | 127 | 0.86 (0.71–1.04) |
  Low (≤0.50) | High (≥3.51) | 1267 | 21,076 | 34 | 1.03 (0.72–1.45) |
  Intermediate (0.51–3.50) | High (≥3.51) | 1751 | 29,121 | 40 | 0.89 (0.64–1.23) |
 Decreasing | |||||
  Intermediate (0.51–3.50) | Low (≤0.50) | 8436 | 139,718 | 209 | 0.96 (0.82–1.12) |
  High (≥3.51) | Low (≤0.50) | 2212 | 36,515 | 58 | 1.00 (0.76–1.32) |
  High (≥3.51) | Intermediate (0.51–3.50) | 2617 | 43,519 | 46 | 0.75 (0.55–1.02) |