Table 4.

Age- and energy-adjusted ORs and 95% CIs stratified by ER/PR status for the association between dietary and supplemental sources of micronutrients in relation to breast cancer incidence among postmenopausal women, LIBCSP, 1996–1997

Controls (n = 953)ER+PR+
ER+PR−
ER−PR+
ER−PR−
Cases (n = 378)OR (95% CI)Cases (n = 117)OR (95% CI)Cases (n = 29)OR (95% CI)Cases (n = 128)OR (95% CI)
Dietary α-carotene, μg/d
    0–267.75602361.00651.00191.00831.00
    267.8+3931420.89 (0.69–1.15)521.16 (0.77–1.75)100.63 (0.28–1.41)450.86 (0.57–1.30)
P for trend*0.230.420.460.18
Dietary β-carotene, μg/d
    0–2,647.45402401.00751.00131.00871.00
    2,647.5+4131380.76 (0.58–0.99)420.71 (0.46–1.09)161.50 (0.68–3.33)410.67 (0.44–1.02)
P for trend*0.020.140.170.01
Dietary cryptoxanthin, μg/d
    0–90.75552231.00681.00151.00791.00
    90.8+3981550.96 (0.74–1.23)490.94 (0.62–1.42)141.19 (0.55–2.57)490.94 (0.64–1.42)
P for trend*0.520.780.460.40
Dietary lutein, μg/d
    0–1,937.35612481.00681.00151.00861.00
    1,937.3+3921300.80 (0.62–1.03)491.13 (0.75–1.71)141.19 (0.55–2.56)420.78 (0.52–1.17)
P for trend*0.050.560.460.10
Dietary lycopene, μg/d
    0–1,602.75892541.00811.00181.00931.00
    1,602.8+3941240.84 (0.64–1.10)360.74 (0.48–1.14)110.77 (0.34–1.74)350.68 (0.45–1.05)
P for trend*0.120.200.830.03
Dietary vitamin C, mg/d
    0–131.05552451.00721.00181.00811.00
    131.1+3981330.75 (0.58–0.98)450.84 (0.55–1.29)110.73 (0.33–1.63)470.93 (0.61–1.41)
P for trend*0.020.470.720.27
Dietary vitamin E, a-te/d
    0–7.85852451.00701.00181.00911.00
    7.9+3681330.96 (0.72–1.30)471.23 (0.77–1.97)110.62 (0.24–1.55)370.75 (0.47–1.20)
P for trend*0.430.440.840.04
  • * P for trend for continuous variable.