Table 3.
Oral Estrogen | Cutaneous Estrogen | p-value for homogeneity among routes of estrogen treatment | |||
---|---|---|---|---|---|
cases / totalb | HR [95% CI] | cases / totalb | HR [95% CI] | ||
Model 1c | |||||
Estrogen aloned | 16 / 796 | 0.75 [0.44 – 1.28] | 72 / 3856 | 0.87 [0.67 – 1.13] | 0.62 |
Estrogen combined with: | |||||
Progesterone | 4 / 674 | -e | 112 / 7725 | 0.77 [0.62 – 0.97] | - |
Dydrogesterone | 10 / 1571 | 0.62 [0.33 – 1.16] | 86 / 4455 | 0.93 [0.72 – 1.19] | 0.23 |
Medroxyprogesterone acetate | 22 / 1453 | 0.85 [0.55 – 1.33] | 3 / 85 | -e | - |
Cyproterone acetate | 12 / 1527 | 0.50 [0.26 – 0.97] | 2 / 159 | -e | - |
Chlormadinone acetate | 5 / 424 | 0.49 [0.16 – 1.53] | 28 / 1748 | 0.95 [0.63 – 1.42] | 0.28 |
Medrogestone | 2 / 272 | -e | 24 / 1167 | 1.20 [0.78 – 1.85] | - |
Nomegestrol acetate | 12 / 627 | 1.07 [0.57 – 2.02] | 56 / 3272 | 0.97 [0.72 – 1.30] | 0.76 |
Promegestone | 13 / 805 | 0.98 [0.53 – 1.78] | 37 / 2676 | 0.81 [0.57 – 1.15] | 0.58 |
Norethisterone acetate | 17 / 2199 | 0.48 [0.28 – 0.81] | 0 / 25 | -e | - |
P-value for homogeneity among progestagens | 0.35 | 0.57 | |||
Model 2f | |||||
Estrogen alone | 16 / 796 | 0.68 [0.40 – 1.17] | 72 / 3856 | 0.80 [0.61 – 1.04] | 0.59 |
Estrogen combined with: | |||||
Progesterone | 4 / 674 | -e | 112 / 7725 | 0.67 [0.54 – 0.84] | - |
Dydrogesterone | 10 / 1571 | 0.58 [0.31 – 1.09] | 86 / 4455 | 0.84 [0.66 – 1.08] | 0.27 |
Medroxyprogesterone acetate | 22 / 1453 | 0.77 [0.50 – 1.20] | 3 / 85 | -e | - |
Cyproterone acetate | 12 / 1527 | 0.44 [0.23 – 0.85] | 2 / 159 | -e | - |
Chlormadinone acetate | 5 / 424 | 0.45 [0.14 – 1.40] | 28 / 1748 | 0.86 [0.57 – 1.29] | 0.29 |
Medrogestone | 2 / 272 | -e | 24 / 1167 | 1.01 [0.66 – 1.56] | - |
Nomegestrol acetate | 12 / 627 | 0.95 [0.51 – 1.78] | 56 / 3272 | 0.88 [0.66 – 1.18] | 0.83 |
Promegestone | 13 / 805 | 0.89 [0.49 – 1.63] | 37 / 2676 | 0.72 [0.51 – 1.03] | 0.54 |
Norethisterone acetate | 17 / 2199 | 0.44 [0.26 – 0.75] | 0 / 25 | -e | - |
P-value for homogeneity among progestagens | 0.37 | 0.47 |
corresponding to the MHT used for the greatest length of time);
The number of cases and total of women do not add up to the totals as data are not tabulated for weak estrogens (43 diabetes cases / 2376 total women), and other (intramusculary administered estrogen or progestogen; androgen; nasally administered estrogen; transdermally administered progestagen; or tibolone) or unknown MHT (126 diabetes cases / 7457 total women);
Model 1: adjusted for the same covariates as model 1 in Table 2;
Conjugated equine estrogens were only marginally used by women in our cohort (0.7%), so separate estimates for conjugated equine estrogens and estradiol compounds are not provided;
Data are not presented as there are fewer than five cases in this MHT category;
Model 2: Model 1 with adjustment for BMI (<22 / [22–25[ / [25–27[ / [27–30[ / ≥30 kg/m2) as a time-dependent variable.