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Background: The role of pubertal BMI change in adult‐onset concomitant asthma and allergic rhinitis is unknown. Objective: We investigated the association of childhood and young adult BMI, and pubertal BMI changes with adult‐onset asthma, allergic rhinitis, and concomitant asthma and rhinitis in Swedish men. Methods: The BMI Epidemiology Study in Gothenburg, Sweden, comprised of height and weight measures taken from school health records (6.5‐9.5 years) and during military conscription (17.5‐22 years) for all men born 1945‐1961 (n = 37 652). Age‐adjusted childhood BMI centred at 8 years and young adult BMI at 20 years were linked to high quality data on asthma and allergic rhinitis diagnoses from the Swedish National Patient Register. Findings: High BMI (4th quartile vs the two median quartiles) at 8 years was associated with increased risk of concomitant asthma and allergic rhinitis (HR 1.45; 95% CI 1.00‐2.11). Overweight (HR 1.45; 95% CI 1.12‐1.89) and obesity (HR 1.95; 95% CI 1.08‐3.54) at 20 years were associated with increased risk of asthma without concomitant allergic rhinitis as main or auxiliary diagnosis. Pubertal BMI change showed a non‐linear association, so that both low (1st quartile vs the two median quartiles) and high pubertal BMI changes were associated with increased risk of asthma (low: HR 1.36; 95% CI 1.11‐1.68; high: HR 1.32; 95% CI 1.07‐1.63) and asthma without concomitant allergic rhinitis (low: HR 1.33; 95% CI 1.04‐1.69; high: HR 1.36; 95% CI 1.07‐1.74) as a main diagnosis. Conclusions and Clinical Relevance: Both low and high pubertal BMI changes are predictors of adult‐onset asthma in men, particularly asthma without concomitant allergic rhinitis. Primary prevention of adult‐onset asthma requires monitoring of changes in BMI during puberty. [ABSTRACT FROM AUTHOR]

• In a population-based dataset, 2.0% of patients with COVID-19 had post-COVID-19 condition (PCC). • The cumulative incidence was higher among women than men (2.3% vs 1.6%). • Among hospitalized (intensive care) patients with COVID-19 (n = 2509), 36.9% had PCC. • Among non-hospitalized patients with COVID-19 (n = 478,241), 1.5% had PCC. • Compared with patients without PCC, patients with PCC were older and had a tertiary education. The objective of this study was to provide a comprehensive characterization of patients diagnosed with post-COVID-19 condition (PCC) during the first 16 months of use of the International Classification of Diseases revision 10 (ICD-10) diagnosis code U09.9 in Sweden. We used data from national registers and primary health care databases for all adult inhabitants of the two largest regions in Sweden, comprising 4.1 million inhabitants (approximately 40% of the Swedish population). We present the cumulative incidence and incidence rate of PCC overall and among subgroups and describe patients with COVID-19 with or without PCC regarding sociodemographic characteristics, comorbidities, subsequent diseases, COVID-19 severity, and virus variants. Of all registered COVID-19 cases available for PCC diagnosis (n = 506,107), 2.0% (n = 10,196) had been diagnosed with PCC using ICD-10 code U09.9 as of February 15, 2022 in the two largest regions in Sweden. The cumulative incidence was higher among women than men (2.3% vs 1.6%, P <0.001). The majority of PCC cases (n = 7162, 70.2%) had not been hospitalized for COVID-19. This group was more commonly female (69.9% vs 52.9%, P <0.001), had a tertiary education (51.0% vs 44.1%, P <0.001), and was older (median age difference 5.7 years, P <0.001) than non-hospitalized patients with COVID-19 without PCC. This characterization furthers the understanding of patients diagnosed with PCC and could support policy makers with appropriate societal and health care resource allocation. [ABSTRACT FROM AUTHOR]