RT Journal Article SR Electronic T1 Impact of smoking on COVID-19 outcomes: a HOPE Registry subanalysis JF BMJ Nutrition, Prevention & Health JO BMJ Nutrition FD BMJ Publishing Group Ltd SP 285 OP 292 DO 10.1136/bmjnph-2021-000269 VO 4 IS 1 A1 Carolina Espejo-Paeres A1 Iván J Núñez-Gil A1 Vicente Estrada A1 Cristina Fernández-Pérez A1 Giovanna Uribe-Heredia A1 Clara Cabré-Verdiell A1 Aitor Uribarri A1 Rodolfo Romero A1 Marcos García-Aguado A1 Inmaculada Fernández-Rozas A1 Victor Becerra-Muñoz A1 Martino Pepe A1 Enrico Cerrato A1 Sergio Raposeiras-Roubín A1 María Barrionuevo-Ramos A1 Freddy Aveiga-Ligua A1 Carolina Aguilar-Andrea A1 Emilio Alfonso-Rodríguez A1 Fabrizio Ugo A1 Juan Fortunato García-Prieto A1 Gisela Feltes A1 Ibrahim Akin A1 Jia Huang A1 Jorge Jativa A1 Antonio Fernández-Ortiz A1 Carlos Macaya A1 Ana Carrero-Fernández A1 Jaime Signes-Costa YR 2021 UL http://nutrition.bmj.com/content/4/1/285.abstract AB Background Smoking has been associated with poorer outcomes in relation to COVID-19. Smokers have higher risk of mortality and have a more severe clinical course. There is paucity of data available on this issue, and a definitive link between smoking and COVID-19 prognosis has yet to be established.Methods We included 5224 patients with COVID-19 with an available smoking history in a multicentre international registry Health Outcome Predictive Evaluation for COVID-19 (NCT04334291). Patients were included following an in-hospital admission with a COVID-19 diagnosis. We analysed the outcomes of patients with a current or prior history of smoking compared with the non-smoking group. The primary endpoint was all-cause in-hospital death.Results Finally, 5224 patients with COVID-19 with available smoking status were analysed. A total of 3983 (67.9%) patients were non-smokers, 934 (15.9%) were former smokers and 307 (5.2%) were active smokers. The median age was 66 years (IQR 52.0–77.0) and 58.6% were male. The most frequent comorbidities were hypertension (48.5%) and dyslipidaemia (33.0%). A relevant lung disease was present in 19.4%. In-hospital complications such sepsis (23.6%) and embolic events (4.3%) occurred more frequently in the smoker group (p<0.001 for both). All cause-death was higher among smokers (active or former smokers) compared with non-smokers (27.6 vs 18.4%, p<0.001). Following a multivariate analysis, current smoking was considered as an independent predictor of mortality (OR 1.77, 95% CI 1.11 to 2.82, p=0.017) and a combined endpoint of severe disease (OR 1.68, 95% CI 1.16 to 2.43, p=0.006).Conclusion Smoking has a negative prognostic impact on patients hospitalised with COVID-19.Data are available upon reasonable request (Health Outcome Predictive Evaluation for COVID-19 Registry).