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Hormonal contraceptives and onset of asthma in reproductive-age women: Population-based cohort study.

Artikel i vetenskaplig tidskrift
Författare Bright I Nwaru
Rebecca Pillinger
Holly Tibble
Syed A Shah
Dermot Ryan
Hilary Critchley
David Price
Catherine M Hawrylowicz
Colin R Simpson
Ireneous N Soyiri
Francis Appiagyei
Aziz Sheikh
Publicerad i The Journal of allergy and clinical immunology
ISSN 1097-6825
Publiceringsår 2020
Publicerad vid Krefting Research Centre
Wallenberg Centre for Molecular and Translational Medicine
Språk en
Länkar dx.doi.org/10.1016/j.jaci.2020.02.0...
www.ncbi.nlm.nih.gov/entrez/query.f...
Ämneskategorier Klinisk medicin, Hälsovetenskaper

Sammanfattning

Despite well-described sex differences in asthma incidence, there remains uncertainty about the role of female sex hormones in the development of asthma.We sought to investigate whether hormonal contraceptive use, its subtypes, and duration of use were associated with new-onset asthma in reproductive-age women.Using the Optimum Patient Care Research Database, a UK national primary care database, we constructed an open cohort of 16- to 45-year-old women (N = 564,896) followed for up to 17 years (ie, January 1, 2000, to December 31, 2016). We fitted multilevel Cox regression models to analyze the data.At baseline, 26% of women were using any hormonal contraceptives. During follow-up (3,597,146 person-years), 25,288 women developed asthma, an incidence rate of 7.0 (95% CI, 6.9-7.1) per 1000 person-years. Compared with nonuse, previous use of any hormonal contraceptives (hazard ratio [HR], 0.70; 95% CI, 0.68-0.72), combined (HR, 0.70; 95% CI, 0.68-0.72), and progestogen-only therapy (HR, 0.70; 95% CI, 0.67-0.74) was associated with reduced risk of new-onset asthma. For current use, the estimates were as follows: any (HR, 0.63; 95% CI, 0.61-0.65), combined (HR, 0.65; 95% CI, 0.62-0.67), and progestogen-only therapy (HR, 0.59; 95% CI, 0.56-0.62). Longer duration of use (1-2 years: HR, 0.83; 95% CI, 0.81-0.86; 3-4 years: HR, 0.64; 95% CI, 0.61-0.67; 5+ years: HR, 0.46; 95% CI, 0.44-0.49) was associated with a lower risk of asthma onset than nonuse.Hormonal contraceptive use was associated with reduced risk of new-onset asthma in women of reproductive age. Mechanistic investigations to uncover the biological processes for these observations are required. Clinical trials investigating the safety and effectiveness of hormonal contraceptives for primary prevention of asthma will be helpful to confirm these results.

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