Shah, Syed ATibble, HollyPillinger, RebeccaMcLean, SusannahRyan, DermotCritchley, HilaryPrice, DavidHawrylowicz, Catherine MSimpson, Colin RSoyiri, Ireneous NAppiagyei, FrancisSheikh, AzizNwaru, Bright I2022-02-022022-02-022021-05-31Shah, S A, Tibble, H, Pillinger, R, McLean, S, Ryan, D, Critchley, H, Price, D, Hawrylowicz, C M, Simpson, C R, Soyiri, I N, Appiagyei, F, Sheikh, A & Nwaru, B I 2021, 'Hormone replacement therapy and asthma onset in menopausal women : National cohort study', Journal of Allergy and Clinical Immunology, vol. 147, no. 5, pp. 1662-1670. https://doi.org/10.1016/j.jaci.2020.11.0240091-6749https://hdl.handle.net/2164/18018We would like to thank Dr Lynn Morrice for administrative assistance and the members of the Patient and Public Involvement group of the Asthma UK Centre for Applied Research who helped shape this project during the grant application stage. We are grateful to Optimum Patient Care and the Observational and Pragmatic Research Institute Pte Ltd for making the Optimum Patient Care Research Database database (www.opcrd.co.uk) available free of charge. We also thank Derek Skinner of the Observational and Pragmatic Research Institute Pte Ltd, who contributed to creation of the study data cut, identification of Read codes, and IMD quintiles. B.N. acknowledges the support of the VBG Group Herman Krefting Foundation on Asthma and Allergy, Knut and Alice Wallenberg Foundation, and the Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg.91299146engAsthmaestrogensepidemiologyestradiolprogestogenR MedicineSupplementary DataRJournal article10.1016/j.jaci.2020.11.0241475