Table 4.

Serum 25(OH) vitamin D levels and their association with advanced distal colorectal adenoma in women based on use of HRT

VariableNumber of subjects
Mean ± SE (ng/ml)
OR95% CIPtrend
CasesControlsCasesControls
All women12312425.1 ± 0.8829.3 ± 0.870.590.45–0.780.0002
    Current HRT users586027.9 ± 1.4032.6 ± 1.370.620.44–0.880.007
    Former or never HRT users656322.0 ± 1.3427.3 ± 1.320.500.32–0.790.003
  • Note: Mean values are adjusted for age, ethnic origin, study center, and months of blood draw. OR for serum vitamin D levels per 10 units increase. ORs adjusted for age, ethnic origin, study center, and month of blood draw.