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. 2012 Mar 23;7(3):e34112. doi: 10.1371/journal.pone.0034112

Table 4. Cox proportional hazard models for the risk of all-cause deaths according to the use of hormone treatment at baseline.

Women Deaths Follow-up, Hazard Ratio (95% CI), p
Hormone treatment N N Person-Years Age-adjusted Multivariate adjusteda
Never 3576 284 17,568 1 (Referent) 1 (Referent)
Past 845 52 4223 1.04 (0.77–1.41), 0.78 1.04 (0.72–1.41), 0.79
Current 714 16 3645 0.62 (0.37–1.05), 0.07 0.66 (0.39–1.12), 0.12
Characteristics of current users b
≤10 years current use 274 5 1414 0.36 (0.11–1.13), 0.08 0.37 (0.12–1.16), 0.09
>10 years current use 389 10 1970 0.74 (0.42–1.33), 0.31 0.81 (0.45–1.46), 0.49
initiated ≤5 yrs after menopause 385 7 1961 0.57 (0.26–1.22), 0.15 0.62 (0.29–1.34), 0.23
initiated >5 yrs after menopause 275 8 1418 0.75 (0.37–1.54), 0.44 0.77 (0.38–1.58), 0.48
unopposed estradiol HTc 127 5 656 0.95 (0.39–2.32), 0.91 0.94 (0.39–2.30), 0.90
oral estradiol+progestagen HT 121 3 609 0.74 (0.23–2.33), 0.60 0.84 (0.26–2.65), 0.76
transdermal estradiol+progestagen HTd 439 7 2244 0.45 (0.21–0.96), 0.04 0.48 (0.22–1.04), 0.06
a

Adjusted for age, education, recruitment centre, living situation, incapacities, comorbidity, depressive symptoms and cognitive impairment.

b

With reference to never users.

c

113 (89%) used transdermal estradiol treatment and 14 (11%) oral estradiol.

d

The 27 women who currently used other types of HT were not included in this analysis;