Table 5

Associations between MSI as determined by the panel of 12 markers and exogenous hormone

OR (referent)aOR (95% CI)OR (95% CI)OR (95% CI)
Oral contraceptive useNeverEver
MSI+/MSI−/control121/392/81724/133/280
MSI+ vs. control1.00.6 (0.4–1.1)
MSI− vs. control1.00.9 (0.7–1.2)
MSI+ vs. MSI−1.00.7 (0.4–1.2)
HRTbNeverEvercRecentdFormere
MSI+/MSI−/control83/326/62846/161/35423/115/26023/46/94
MSI+ vs. control1.01.0 (0.7–1.5)0.7 (0.4–1.1)1.8 (1.1–3.1)
MSI− vs. control1.00.9 (0.7–1.1)0.9 (0.7–1.1)1.0 (0.7–1.4)
MSI+ vs. MSI−1.01.2 (0.8–1.8)0.8 (0.5–1.4)2.0 (1.1–3.5)
  • a Adjusted for age, energy intake.

  • b Analyses restricted to postmenopausal women.

  • c Ever used for 3 months or longer.

  • d In the year prior to referent date.

  • e Having stopped 2 years prior to the referent date.