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Table 5 Adjusted Odds Ratios (95% CI) for factors associated with mammographic breast density among women in Karachi, Pakistan

From: Factors associated with mammographic breast density among women in Karachi Pakistan

Category

Heterogeneously dense MBD

Dense MBD

Variables

AOR

95% CI

AOR

95% CI

Age (years)

    

 < 45

2.68

1.60, 4.49

4.83

2.54, 9.16

 > 45

Ref

 

Ref

 

History of benign breast disease

    

Yes

1.90

1.14, 3.17

3.61

1.90, 6.86

No

Ref

 

Ref

 

BMI*

0.94

0.90, 0.99

0.81

0.76, 0.87

  1. Ref is fatty/fibroglandular category. BI-RADS: Breast Imaging Reporting and Data System (fatty and scattered glandular dense = categories A and B, heterogeneously dense = C, dense = D)
  2. AOR, adjusted odds ratio; 95% CI, 95% confidence interval; *mean (SD)
  3. AORs adjusted for socioeconomic status, vitamin D, parity, diet, menopausal status/age at menopause, age at first birth, family history of breast cancer, exercise, and case–control status of women