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Table 4 Above-median percent (>28.5 %) and absolute (>32.4 cm2) mammographic density according to past-year alcohol consumption by type in premenopausal women (n = 202)a

From: Alcohol consumption, endogenous estrogen and mammographic density among premenopausal women

Alcohol consumption, past yearb   Age-adjusted modelc Multivariable-adjusted modeld
  Number Percent density (%) Absolute density (cm2) Percent density (%) Absolute density (cm2)
Total      
 <1 drink/week 66 1.00 1.00 1.00 1.00
 1–6 drinks/week 96 0.90 (0.47, 1.72) 1.10 (0.57, 2.11) 0.92 (0.39, 2.15) 1.16 (0.56, 2.42)
 ≥7 drinks/week 40 2.37 (1.00, 5.60) 4.38 (1.76, 10.87) 2.78 (0.90. 8.60) 5.08 (1.82, 14.20)
p-trend   0.094 0.004 0.106 0.004
Beer      
 <2 drinks/week 156 1.00 1.00 1.00 1.00
 ≥2 drinks/week 45 1.33 (0.66, 2.67) 1.96 (0.97, 3.98) 1.25 (0.51, 3.03) 1.95 (0.90, 4.24)
p-difference   0.423 0.062 0.627 0.092
Wine      
 <2 drinks/week 169 1.00 1.00 1.00 1.00
 ≥2 drinks/week 33 2.18 (0.97, 4.93) 2.60 (1.14, 5.93) 2.06 (0.77, 5.53) 2.47 (1.03, 5.92)
p-difference   0.060 0.024 0.152 0.043
Otherse      
 <2 drinks/week 184 1.00 1.00 1.00 1.00
 ≥2 drinks/week 18 2.80 (0.85, 9.17) 2.86 (0.88, 9.35) 2.55 (0.67, 9.64) 2.65 (0.79, 9.04)
p-difference   0.090 0.081 0.196 0.119
  1. Data presented as odds ratio (95 % confidence interval). All analyses used multivariable logistic regression models
  2. FFQ food frequency questionnaire
  3. aNumbers may vary owing to missing information
  4. bAlcohol consumption reported in past year, FFQ. One drink or unit is equal to 10 g alcohol
  5. cAdjusted for age (continuous)
  6. dAdjusted for age (continuous), body mass index (continuous), number of children (continuous), previous oral contraceptives (categorical), and current smokers (categorical)
  7. eIncludes spirits and fortified wine