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. Author manuscript; available in PMC: 2025 Mar 1.
Published in final edited form as: Cancer Causes Control. 2024 May 21;35(9):1283–1295. doi: 10.1007/s10552-024-01882-4

Table 1.

Characteristics of the never/former menopausal hormone therapy users (n=920) from the Women’s Health Initiative-Observational Study.

N % N Weighteda
Overall n 920
Age (mean±SD) 64.4±7.2
BMI (mean±SD) 28.4±6.8
Waist-to-hip ratio (mean±SD) 0.82±0.08
Age at blood draw
 <60 years old 244 26.5 7529
 60–69 years old 416 45.2 13822
 70+ years old 260 28.3 8936
Race and ethnicityb
 Non-Hispanic White 807 87.7 26865
 Other 113 12.3 3423
Education
 HS education or less 203 22.1 6546
 Some post-HS education 313 34.0 10814
 College graduate 394 42.8 12669
 Missing 10 1.1
Smoking status
 Never smoked 468 50.9 15161
 Past smoker 382 41.5 12199
 Current smoker 63 6.8 2603
 Missing 7 0.8
Current alcohol consumption
 No 184 20.0 6426
 Yes 626 68.0 20360
 Missing 110 12.0
BMI
 < 25 kg/m2 335 36.4 13436
 25–29.9 kg/m2 292 31.7 9425
 30+ kg/m2 291 31.6 7420
 Missing 2 0.2
Number of term pregnancies
 Never pregnant 130 14.1 4235
 Never had term pregnancy 19 2.1 509
 1 80 8.7 2549
 2 211 22.9 6706
 3 221 24.0 7134
 4 136 14.8 4670
 5+ 120 13.0 4239
 Missing 3 0.3
OC use
 Never 601 65.3 18868
 Ever 319 34.7 11420
Time since menopause
 < 10 years 299 32.5 9299
 10–20 years 364 39.6 11701
 ≥ 20 years 257 27.9 9288
Ever diagnosed with diabetes?
 No 868 94.3 29110
 Yes 52 5.7 1178
Tubal ligation
 No 781 84.9 25334
 Yes 139 15.1 4954
Age at tubal ligation
 <30 years old 14 1.5 324
 30–34 years old 42 4.6 1143
 35–39 years old 45 4.9 1565
 40–44 years old 27 2.9 1286
 45+ years old 11 1.2 635
Hysterectomy
 No 818 88.9 26325
 Yes 102 11.1 3963
Age at hysterectomy
 <30 years old 5 0.5 124
 30–34 years old 10 1.1 245
 35–39 years old 28 3.0 985
 40–44 years old 19 2.1 782
 45+ years old 37 4.0 1825
a

Weighted n reflects weighted counts and refers to the study cohort.

b

Categories were dichotomized to non-Hispanic White women and other due to small numbers. Other is defined as women that self-identified as Black or African American, Hispanic/Latino, or other (American Indian or Alaskan Native, Asian or Other Pacific Islander, or other).