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. 2013 Oct 14;13:475. doi: 10.1186/1471-2407-13-475

Table 4.

Body composition measures and breast cancer

 
 Pre-menopausal
 Post-menopausal
  Cases/Controls OR1 95% CI OR2 95% CI Cases/Controls OR1 95% CI OR2 95% CI
Fat mass (kg)
  
  
  
  
  
  
  
  
  
  
  ≤25.3
 128/125
 Ref
  
 Ref
  
 101/102
 Ref
  
 Ref
  
 25.4–34.1
 131/116
 1.08
 0.74–1.56
 1.24
 0.82–1.87
 126/107
 1.16
 0.78–1.74
 1.34
 0.86–2.07
 34.2–44.3
 96/100
 0.92
 0.62–1.37
 1.19
 0.70–2.03
 124/123
 0.94
 0.63–1.40
 1.21
 0.72–2.04
 >44.3
 87/114
 0.82
 0.54–1.23
 1.39
 0.61–3.14
 120/110
 1.05
 0.70–1.57
 1.69
 0.82–3.49
  p for trend
  
  
 0.24
  
 0.49
  
  
 0.93
  
 0.22
Fat free mass (kg)
  
  
  
  
  
  
  
  
  
  
 ≤44.1
 112/108
 Ref
  
 Ref
  
 130/118
 Ref
  
 Ref
  
 44.2–48
 121/125
 0.94
 0.64–1.39
 1.04
 0.70–1.55
 134/99
 1.28
 0.87–1.88
 1.32
 0.88–1.96
 48.1–52.6
 106/99
 1.00
 0.67–1.51
 1.24
 0.78–1.98
 107/124
 0.87
 0.59–1.27
 0.92
 0.59–1.43
 >52.6
 103/123
 0.84
 0.57–1.26
 1.32
 0.70–2.47
 101/101
 0.96
 0.65–1.43
 1.05
 0.61–1.83
  p for trend
  
  
 0.44
  
 0.35
  
  
 0.47
  
 0.88
Percent body fat
  
  
  
  
  
  
  
  
  
  
 ≤35.9
 145/137
 Ref
  
 Ref
  
 93/94
 Ref
  
 Ref
  
 36–41.6
 118/118
 0.92
 0.64–1.33
 1.02
 0.69–1.52
 123/107
 1.14
 0.75–1.71
 1.27
 0.83–1.96
 41.7–46.5
 96/104
 0.88
 0.60–1.30
 1.07
 0.67–1.72
 119/124
 0.85
 0.57–1.29
 1.05
 0.65–1.70
 >46.5
 83/106
 0.82
 0.55–1.23
 1.22
 0.62–2.42
 137/119
 1.09
 0.73–1.63
 1.59
 0.87–2.93
  p for trend
  
  
 0.32
  
 0.65
  
  
 0.98
  
 0.26
Fat mass index
  
  
  
  
  
  
  
  
  
  
 ≤9.37
 128/129
 Ref
  
 –
 –
 86/96
 Ref
  
 -
 -
 9.38–12.78
 138/119
 1.09
 0.75–1.58
 -
 -
 124/104
 1.39
 0.92–2.11
 -
 -
 12.79–16.77
 93/98
 0.95
 0.63–1.42
 -
 -
 140/127
 1.13
 0.75–1.70
 -
 -
 >16.77
 83/109
 0.80
 0.53–1.21
 -
 -
 121/115
 1.10
 0.72–1.66
 -
 -
  p for trend
  
  
 0.35
 -
 -
  
  
 0.58
 -
 -
Fat free mass index
  
  
  
 -
 -
  
  
  
 -
 -
 ≤16.64
 126/118
 Ref
  
 -
 -
 123/106
 Ref
  
 -
 -
 16.65-18.04
 116/121
 0.88
 0.60–1.28
 -
 -
 108/104
 0.94
 0.63–1.40
 -
 -
 18.05–19.80
 99/99
 0.85
 0.57–1.28
 -
 -
 129/124
 0.89
 0.60–1.30
 -
 -
 >19.80
 101/117
 0.81
 0.54–1.21
 -
 -
 112/108
 0.86
 0.58–1.28
 -
 -
  p for trend     0.33 - -     0.45 - -

Fat mass index: fat mass in kg/(height in m)2; Fat Free Mass index: fat free mass in kg/(height in m)2 OR1: Adjusted for age, ethnicity, country of origin, education, family history of breast cancer, history of benign breast disease, age at menarche, years since menopause (for postmenopausal women), parity (continuous), breastfeeding (yes/no), age at first birth, HRT use (never/ever), OC use (never/ever). OR2: Further adjusted for BMI.