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Hormone Replacement Therapy and Development of New Asthma

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  3. Unique Aspects of Asthma in Women

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BACKGROUND: Hormone replacement therapy (HRT) is prescribed to millions of women worldwide. Previous studies have suggested that HRT has both protective and harmful effects in asthma.

RESEARCH QUESTION: Is HRT in menopause associated with new development of asthma?

STUDY DESIGN AND METHODS: We undertook a nested case-control study based on the Danish registers from June 1, 1995, through December 31, 2018. A diagnosis of asthma was defined as two redeemed prescriptions of inhaled corticosteroids within 2 years. HRT was defined as two redeemed prescriptions of female sex hormones within 6 months. Data were analyzed using a conditional logistic regression model.

RESULTS: We included 34,533 women with asthma vs 345,116 women without asthma between 40 and 65 years of age. In a multivariate analysis adjusted for age, household income, and educational level, active HRT resulted in a hazard ratio (HR) of 1.63 (95% CI, 1.55-1.71; P < .001) of new asthma development. Women with asthma who terminated HRT were likely to discontinue their asthma treatment subsequently (HR, 2.12; 95% CI, 1.94-2.33; P < .001).

INTERPRETATION: HRT seems to play a role in the development of asthma in mature women. Clinicians prescribing HRT and women receiving HRT should be aware that new airway symptoms can develop, and discontinuation of HRT should be considered.

Original languageEnglish
JournalChest
Volume160
Issue number1
Pages (from-to)45-52
Number of pages8
ISSN0012-3692
DOIs
Publication statusPublished - Jul 2021

    Research areas

  • asthma, case-control study, estrogen, hormone replacement therapy

ID: 66259009