Table 4. Odds ratios (ORs) and 95% confidence intervals (95% CIs) for breast cancer associated with AMH concentration.
AMH quartiles1 | Ptrend5 | ||||
---|---|---|---|---|---|
| |||||
Q1 | Q2 | Q3 | Q4 | ||
Cases/Controls | 631/789 | 684/777 | 711/779 | 809/777 | . |
Unadjusted OR2 (95% CI) | 1.00 (Referent) | 1.20 (1.02, 1.41) | 1.35 (1.14, 1.61) | 1.64 (1.35, 1.98) | <.0001 |
Adjusted OR3 (95% CI) | 1.00 (Referent) | 1.18 (1.00, 1.39) | 1.32 (1.10, 1.58) | 1.60 (1.31, 1.94) | <.0001 |
Adjusted OR3 (95% CI), among women with testosterone measurements | 1.00 (Referent) | 1.18 (0.99, 1.40) | 1.34 (1.11, 1.61) | 1.62 (1.32, 1.98) | <.0001 |
Adjusted OR4 (95% CI), including adjustment for testosterone | 1.00 (Referent) | 1.17 (0.99, 1.40) | 1.33 (1.10, 1.60) | 1.58 (1.29, 1.93) | <.0001 |
Defined using cohort-specific cutpoints.
Estimated using conditional logistic regression (cohort and age are adjusted for through matching).
Estimated using conditional logistic regression and adjusting for race/ethnicity (white, black, other or unknown), education (high school or less, some college or higher, unknown), BMI (ordered categorical, <18.5, 18.5-25, 25-30, 30+ kg/m2), age at menarche (ordered categorical, <12, 12, 13, 14+ years), parity (ordered categorical, 0, 1, 2, 3+), age at 1st FTP (ordered categorical, <=20, 21-25, 26-30, 30+ years or nulliparous), oral contraceptive use (never, former, current, unknown), partial oophorectomy (no, yes, unknown), family history of breast cancer (no, yes), benign breast biopsy (no, yes, unknown), and smoking status (never, former, current, unknown).
Estimated using conditional logistic regression and adjusting for variables in footnote 2 and testosterone (cohort-specific quartiles, with measurements from previous studies calibrated to the Mayo LC-MS/MS assay).
Ptrend was calculated using ordered-categorical AMH.