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Menopausal hormone ...
Menopausal hormone therapy and colorectal cancer: a linkage between nationwide registries in Norway
- Artikel/kapitelEngelska2017
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LIBRIS-ID:oai:prod.swepub.kib.ki.se:137567904
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http://kipublications.ki.se/Default.aspx?queryparsed=id:137567904URI
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https://doi.org/10.1136/bmjopen-2017-017639DOI
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Språk:engelska
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Sammanfattning på:engelska
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With the present study, we aimed to investigate the association between menopausal hormone therapy (HT) and risk of colorectal cancer (CRC).SettingCohort study based on the linkage of Norwegian population-based registries.ParticipantsWe selected 466822 Norwegian women, aged 55–79, alive and residing in Norway as of 1 January 2004, and we followed them from 2004 to 2008. Each woman contributed person-years at risk as non-user, current user and/or past HT user.Outcome measuresThe outcome of interest was adenocarcinoma of the colorectal tract, overall, by anatomic site and stage at diagnosis. Incidence rate ratios (RRs) with 95% CIs were estimated by Poisson regression and were used to evaluate the association between HT and CRC incidence.ResultsDuring the median follow-up of 4.8 years, 138 655 (30%) women received HT and 3799 (0.8%) incident CRCs occurred. Current, but not past, use of HT was associated with a lower risk of CRC (RR 0.88; 95% CI 0.80 to 0.98). RRs for localised, regionally advanced and metastatic CRC were 1.13 (95% CI 0.91 to 1.41), 0.81 (95% CI 0.70 to 0.94) and 0.79 (95% CI 0.62 to 1.00), respectively. RRs for current use of oestrogen therapy (ET) were 0.91 (95% CI 0.80 to 1.04) while RR for current use of combined oestrogen–progestin therapy (EPT) was 0.85 (95% CI 0.70 to 1.03), as compared with no use of HT. The same figures for ET and EPT in oral formulations were 0.83 (95% CI 0.68 to 1.03) and 0.86 (95% CI 0.71 to 1.05), respectively.ConclusionsIn our nationwide cohort study, HT use lowered the risk of CRC, specifically the most advanced CRC.
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Stoer, NC
(författare)
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Sakshaug, S
(författare)
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Graff-Iversen, S
(författare)
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Vangen, S
(författare)
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Hofvind, S
(författare)
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de Lange, T
(författare)
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Bagnardi, V
(författare)
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Ursin, G
(författare)
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Weiderpass, EKarolinska Institutet
(författare)
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Karolinska Institutet
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:BMJ open: BMJ7:11, s. e017639-2044-6055
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BMJ open
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Till lärosätets databas
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Botteri, E
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Stoer, NC
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Sakshaug, S
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Graff-Iversen, S
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Vangen, S
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Hofvind, S
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visa fler...
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de Lange, T
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Bagnardi, V
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Ursin, G
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Weiderpass, E
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visa färre...
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BMJ open
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Karolinska Institutet