{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T00:36:57Z","timestamp":1791506217390,"version":"4.3.4"},"reference-count":43,"publisher":"BMJ","license":[{"start":{"date-parts":[[2026,2,18]],"date-time":"2026-02-18T00:00:00Z","timestamp":1771372800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ"],"accepted":{"date-parts":[[2026,2,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To assess whether menopausal hormone therapy increases the risk of all cause mortality.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design<\/jats:title>\n                    <jats:p>Nationwide, registry based cohort study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting<\/jats:title>\n                    <jats:p>Denmark.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Participants<\/jats:title>\n                    <jats:p>Danish women born between 1950 and 1977 and alive at 45 years. Follow-up began on each woman\u2019s 45th birthday and ended on 31 July 2023. Of 969\u2009424 eligible women, 92\u2009619 were excluded because of thrombophilia, liver disease, arterial thrombosis or venous thrombosis, breast cancer, endometrial cancer, ovarian cancer, previous use of menopausal hormone therapy, or previous bilateral oophorectomy. Systemic menopausal hormone therapy was the intervention of interest.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Main outcome measures<\/jats:title>\n                    <jats:p>Death as registered in the Central Persons Register. Secondary outcomes were cause specific mortality registered in the cause of death register (cardiovascular, cancer, or other mortality). Hazard ratios were estimated using Cox regression, adjusted for age, calendar year, parity, educational degree, income group quarter (based on quartiles), country of birth, diabetes, hypercholesterolemia, hypertension, atrial fibrillation, valvular disease, heart failure, and three or more hospital contacts between 44 and 45 years of age.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Of 876\u2009805 women, 104\u2009086 (11.9%) redeemed a prescription for menopausal hormone therapy, and 47\u2009594 (5.4%) died, with a median follow-up time of 14.3 years (interquartile range (IQR) 7.9-21.0 years). Women who used menopausal hormone therapy had an incidence rate of 54.9 deaths per 10\u2009000 person years compared to 35.5 per 10\u2009000 person years in the unexposed group, corresponding to an adjusted hazard ratio of 0.96 (95% confidence interval (CI) 0.93 to 0.98). Stratifying this by cumulative duration of menopausal hormone therapy use gave an adjusted hazard ratio after &lt;1 years of menopausal hormone therapy of 1.01 (95% CI 0.98 to 1.05), after 1-2.9 years of use 0.94 (0.89 to 0.98), 3-4.9 years of use 0.90 (0.84 to 0.95), 5-9.9 years of use 0.89 (0.84 to 0.95), and over \u226510 years of use 0.98 (0.90 to 1.07). No unequivocal differences in cause-specific mortality were found between groups. Among the 703 women who underwent bilateral oophorectomy between 45-54 years, those who used menopausal hormone therapy experienced a 27-34% lower mortality hazard as compared to women who did not (median age at death for those who had taken menopausal hormone therapy 60.9 years (IQR 55.3-66.6 years)\n                      <jats:italic>v<\/jats:italic>\n                      56.6 years (52.9-62.0 years) for those who had not).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This nationwide cohort study did not find menopausal hormone therapy was associated with increased mortality.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/bmj-2025-085998","type":"journal-article","created":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T01:10:32Z","timestamp":1771463432000},"page":"e085998","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":8,"title":["Menopausal hormone therapy and long term mortality: nationwide, register based cohort study"],"prefix":"10.1136","volume":"392","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7583-9826","authenticated-orcid":false,"given":"Anders Pretzmann","family":"Mikkelsen","sequence":"first","affiliation":[{"name":"Department of Gynaecology and Obstetrics, Copenhagen University Hospital Herlev, 2730 Herlev, Denmark"},{"name":"Department of Gynaecology and Obstetrics, Zealand University Hospital Holb\u00e6k, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Bergholt","sequence":"additional","affiliation":[{"name":"Department of Gynaecology and Obstetrics, Copenhagen University Hospital Herlev, 2730 Herlev, Denmark"},{"name":"Department of Clinical Medicine, University of Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u00d8jvind","family":"Lidegaard","sequence":"additional","affiliation":[{"name":"Department of Clinical Medicine, University of Copenhagen, Denmark"},{"name":"Department of Gynaecology, Fertility and Obstetrics, Copenhagen University Hospital Rigshospitalet, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikolai Madrid","family":"Scheller","sequence":"additional","affiliation":[{"name":"Department of Surgical Gastroenterology, Copenhagen University Hospital Rigshospitalet, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,2,18]]},"reference":[{"key":"2026021821000770000_392.feb18_16.e085998.1","doi-asserted-by":"publisher","DOI":"10.1007\/s10654-025-01291-0"},{"key":"2026021821000770000_392.feb18_16.e085998.2","unstructured":"World Health Organization. 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