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Abstract Background The National Early Warning Score 2 (NEWS2) is a scoring tool predictive of poor outcome in hospitalised patients. Older patients with COVID-19 have increased risk of poor outcome, but it is not known if frailty may impact the predictive performance of NEWS2. We aimed to investigate the impact of frailty on the performance of NEWS2 to predict in-hospital mortality in patients hospitalised due to COVID-19. Methods We included all patients admitted to a non-university Norwegian hospital due to COVID-19 from 9 March 2020 until 31 December 2021. NEWS2 was scored based on the first vital signs recorded upon hospital admission. Frailty was defined as a Clinical Frailty Scale score ≥ 4. The performance of a NEWS2 score ≥ 5 to predict in-hospital mortality was assessed with sensitivity, specificity and area under the receiver operating characteristic curve (AUROC) according to frailty status. Results Out of 412 patients, 70 were aged ≥ 65 years and with frailty. They presented less frequently with respiratory symptoms, and more often with acute functional decline or new-onset confusion. In-hospital mortality was 6% in patients without frailty, and 26% in patients with frailty. NEWS2 predicted in-hospital mortality with a sensitivity of 86%, 95% confidence interval (CI) 64%-97% and AUROC 0.73, 95% CI 0.65–0.81 in patients without frailty. In older patients with frailty, sensitivity was 61%, 95% CI 36%-83% and AUROC 0.61, 95% CI 0.48–0.75. Conclusion A single NEWS2 score at hospital admission performed poorly to predict in-hospital mortality in patients with frailty and COVID-19 and should be used with caution in this patient group. Graphical Abstract Graphical abstract summing up study design, results and conclusion

Abstract Background In March 2020, the COVID-19 pandemic challenged both the Norwegian population and healthcare system. In this study we explored how older men and women experienced rehabilitation and recovery after hospitalisation due to severe COVID-19. Methods Semi-structured interviews with 17 participants aged 60–96 years were performed 6 months after discharge from hospital. A thematic descriptive analysis was conducted. Results The results revealed that the participants experienced a challenging span between loneliness and companionship in recovering from severe COVID-19. The four subthemes highlighted experiences of being discharged to home and left to themselves, the importance of exercise and companionship at rehabilitation stay, requirement of self-effort and time to recover, and the challenging span between loneliness and companionship when being with family. Conclusion Among participants, the experiences of loneliness throughout the recovery period were striking. An individualised approach including psychological support should be emphasized in primary healthcare to promote recovery in older survivors after severe COVID-19 and their next-of-kin.