Fertility Treatment Resulting in Live Births in Women with Asthma – Associated with Perennial Allergy?
Received 22 January 2020
Accepted for publication 3 April 2020
Published 24 April 2020 Volume 2020:13 Pages 145—152
Checked for plagiarism Yes
Review by Single-blind
Peer reviewer comments 3
Editor who approved publication: Dr Luis Garcia-Marcos
Casper Tidemandsen,1 Anne Vejen Hansen,1 Vibeke Backer,2 Elisabeth Juul Gade,3 Zarqa Ali,4 Charlotte Suppli Ulrik1,2
1Department of Respiratory Medicine, Hvidovre Hospital, Hvidovre, Denmark; 2Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; 3Department of Gynecology and Obstetrics, Rigshospitalet, Copenhagen, Denmark; 4Department of Dermatology and Wound Healing Centre, Bispebjerg Hospital, Copenhagen, Denmark
Correspondence: Casper Tidemandsen
Respiratory Research Unit Hvidovre, Department of Respiratory Medicine, Hvidovre University Hospital, Kettegård Alle 30, Hvidovre DK-2650, Denmark
Tel +45 50751516
Background: Asthma has been linked with prolonged time to pregnancy compared to healthy controls, also asthma has been linked to a higher need for fertility treatment. However, knowledge of the possible association between allergy and need for fertility treatment is limited. Our aim was to explore a possible difference in having had fertility treatment in women with asthma and live births in those with perennial allergy (animals, fungi and dust mites) compared to no allergy/seasonal allergy. The primary outcome of interest was fertility treatment.
Patients and Methods: Women enrolled in the Management of Asthma during Pregnancy (MAP) program at Hvidovre Hospital, DK, were included in the present analysis provided they fulfilled the following criteria: 1) diagnosed with asthma and current anti-asthma therapy and 2) first visit to the respiratory outpatient clinic within the first 18 weeks of pregnancy. Participants were divided into two groups: asthma with perennial allergy (cases) and asthma with seasonal/no allergy (controls). Logistic regression analysis was applied, and findings expressed as odds ratios (OR).
Results: Among women with asthma and perennial allergy (n=544 cases), 13.8% (n=75) had fertility treatment, compared to only 10.1% (n=39) among women with asthma and seasonal/no allergy (n=388, controls) (OR 1.43, 95% CI 0.95– 2.16, p=0.087). This association remained statistically insignificant after adjusting for confounders, including BMI (OR 1.19, 95% CI 0.77– 1.84, p=0.433). In women ≥ 35 years of age, 28% (n=44) and 20% (n=19), respectively, among cases and controls had fertility treatment (OR 1.60, 95% CI 0.87– 2.94, p=0.132), and likewise, statistically insignificant after adjusting for confounders (OR 1.41, 95% CI 0.74– 2.69, p< 0.293).
Conclusion: In women with asthma and live births, our study revealed a trend towards an association between perennial allergy and a higher need for fertility treatment compared to seasonal/no allergy.
Keywords: asthma, allergy, pregnancy, IVF, ART, fertility, atopy
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