TY - JOUR
T1 - Incidence and prevalence of asthma, chronic obstructive pulmonary disease and interstitial lung disease between 2004 and 2023
T2 - harmonised analyses of longitudinal cohorts across England, Wales, South-East Scotland and Northern Ireland
AU - CVD-COVID-UK/COVID-IMPACT Consortium
AU - Whittaker, Hannah
AU - Machado, Adriana Kramer Fiala
AU - Hatam, Sara
AU - Cook, Sarah
AU - Scully, Sean
AU - Evans, Hywel Turner T.
AU - Bolton, Thomas
AU - Kallis, Constantinos
AU - Busby, John
AU - Heaney, Liam G.
AU - Sheikh, Aziz
AU - Quint, Jennifer K.
AU - Proudfoot, Alastair
AU - Constantine, Andrew
AU - Jones, Dan
AU - Rathod, Krishnaraj
AU - Ahmed, Nida
AU - Fitzgerald, Richard
AU - O’Connell, Dan
AU - Arafin, Rony
AU - Babu-Narayan, Sonya
AU - Karim, Zainab
AU - Shelton, Jon
AU - Slapkova, Martina
AU - Hinchliffe, Rosie
AU - Johnson, Shane
AU - Toms, Renin
AU - Townson, Julia
AU - Braithwaite, Tasanee
AU - Douiri, Abdel
AU - Oluyase, Adejoke
AU - Dregan, Alexandru
AU - Ronaldson, Amy
AU - Bone, Anna
AU - Bray, Ben
AU - Wolfe, Charles
AU - Bromage, Daniel
AU - Nikiphorou, Elena
AU - Chukwusa, Emeka
AU - Higginson, Irene
AU - Sleeman, Katherine
AU - Becares, Laia
AU - O’Connell, Matthew
AU - Hocaoglu, Mevhibe
AU - Cripps, Rachel
AU - Killick, Richard
AU - Curcin, Vasa
AU - Nafilyan, Vahé
AU - Mandal, Swapna
AU - Fraser, Lorna
N1 - Publisher Copyright:
© Author(s) (or their employer(s)) 2025. Re-use permitted under CC BY. Published by BMJ Group.
PY - 2025/7/1
Y1 - 2025/7/1
N2 - Background We describe the epidemiology of asthma, chronic obstructive pulmonary disease (COPD) and interstitial lung disease (ILD) from 2004 to 2023 in England, Wales, Scotland and Northern Ireland (NI) using a harmonised approach. Methods Data from the National Health Service England (NHSE), Clinical Practice Research Datalink Aurum in England, Secure Anonymised Information Linkage Databank in Wales, DataLoch in South-East Scotland and the Honest Broker Service in NI were used. A harmonised approach to COPD, asthma and ILD case definitions, study designs and study populations across the four nations was performed. Age-sex-standardised incidence rates and point prevalence were calculated between 2004 and 2023 depending on data availability. Logistic and negative binomial regression compared incidence and prevalence rates between the start and end of each study period. Linear extrapolation projected incidence rates between 2020 and 2023 to illustrate how observed and projected rates differed. Results Incidence rates were lower in 2019 versus 2005 for asthma (England: incidence rate ratio 0.89, 95% CI 0.88 to 0.90; Wales: 0.66, 0.65 to 0.68; Scotland: 0.67, 0.64 to 0.71; NI: 0.84, 0.81 to 0.86), COPD (England: 0.83, 0.82 to 0.85; Wales: 0.67, 0.65 to 0.69) and higher for ILD (England: 3.27, 3.05 to 3.50; Wales: 1.39, 1.27 to 1.53; Scotland: 1.63, 1.36 to 1.95; NI: 3.03, 2.47 to 3.72). In NHSE, the incidence of asthma was similar in June 2023 versus November 2019, but lower for COPD and higher for ILD. Prevalence of asthma in 2019 in England, Wales, Scotland and NI was 9.7%, 15.9%, 13.2% and 7.0%, respectively, for COPD 4.5%, 5.1%, 4.4% and 3.0%, and for ILD 0.4%, 0.5%, 0.6% and 0.3%. Projected incidence rates were 2.8, 3.4 and 1.8 times lower for asthma, COPD and ILD compared with observed rates at the height of the pandemic. Interpretation Asthma, COPD and ILD affect over 10 million people across the four nations, and a substantial number of diagnoses were missed during the pandemic.
AB - Background We describe the epidemiology of asthma, chronic obstructive pulmonary disease (COPD) and interstitial lung disease (ILD) from 2004 to 2023 in England, Wales, Scotland and Northern Ireland (NI) using a harmonised approach. Methods Data from the National Health Service England (NHSE), Clinical Practice Research Datalink Aurum in England, Secure Anonymised Information Linkage Databank in Wales, DataLoch in South-East Scotland and the Honest Broker Service in NI were used. A harmonised approach to COPD, asthma and ILD case definitions, study designs and study populations across the four nations was performed. Age-sex-standardised incidence rates and point prevalence were calculated between 2004 and 2023 depending on data availability. Logistic and negative binomial regression compared incidence and prevalence rates between the start and end of each study period. Linear extrapolation projected incidence rates between 2020 and 2023 to illustrate how observed and projected rates differed. Results Incidence rates were lower in 2019 versus 2005 for asthma (England: incidence rate ratio 0.89, 95% CI 0.88 to 0.90; Wales: 0.66, 0.65 to 0.68; Scotland: 0.67, 0.64 to 0.71; NI: 0.84, 0.81 to 0.86), COPD (England: 0.83, 0.82 to 0.85; Wales: 0.67, 0.65 to 0.69) and higher for ILD (England: 3.27, 3.05 to 3.50; Wales: 1.39, 1.27 to 1.53; Scotland: 1.63, 1.36 to 1.95; NI: 3.03, 2.47 to 3.72). In NHSE, the incidence of asthma was similar in June 2023 versus November 2019, but lower for COPD and higher for ILD. Prevalence of asthma in 2019 in England, Wales, Scotland and NI was 9.7%, 15.9%, 13.2% and 7.0%, respectively, for COPD 4.5%, 5.1%, 4.4% and 3.0%, and for ILD 0.4%, 0.5%, 0.6% and 0.3%. Projected incidence rates were 2.8, 3.4 and 1.8 times lower for asthma, COPD and ILD compared with observed rates at the height of the pandemic. Interpretation Asthma, COPD and ILD affect over 10 million people across the four nations, and a substantial number of diagnoses were missed during the pandemic.
UR - http://www.scopus.com/inward/record.url?scp=105004274083&partnerID=8YFLogxK
U2 - 10.1136/thorax-2024-222699
DO - 10.1136/thorax-2024-222699
M3 - Article
C2 - 40199588
AN - SCOPUS:105004274083
SN - 0040-6376
VL - 80
SP - 466
EP - 477
JO - Thorax
JF - Thorax
IS - 7
M1 - 10.1136/thorax-2024-222699
ER -