Elkrief, A. et al. (2022). Geriatric risk factors for serious COVID-19 outcomes among older adults with cancer. The Lancet Health Longevity. DOI:https://doi.org/10.1016/S2666-7568(22)00009-5
The researchers’ primary objective at the outset of this study was to determine whether a measure of geriatric risk could capture risk of severe clinical outcomes among older patients with cancer and COVID-19. Additionally, they also sought to describe the presentation, complications and effect of COVID-19 on subsequent cancer care among older adults with cancer.
Patients of 60 years of age and above who were categorised as high risk- using a novel geriatric risk index comprising age, performance status and commodities- had significantly higher COVID-19 severity, including hospitalisation, need for intensive care and mechanical ventilation, and death, within 30 days due to any cause than patients categorised as standard risk or intermediate risk (Source: Elkrief et al, 2022).
Elkrief and colleagues’ study examines the relationship between their novel geriatric risk index and adverse outcomes from COVID-19 among older adults with cancer, as well as the frequency of atypical presentations in this population.
Summary
Background
Older age is associated with poorer outcomes of SARS-CoV-2 infection, although the heterogeneity of ageing results in some older adults being at greater risk than others. The objective of this study was to quantify the association of a novel geriatric risk index, comprising age, modified Charlson comorbidity index, and Eastern Cooperative Oncology Group performance status, with COVID-19 severity and 30-day mortality among older adults with cancer.
Methods
In this cohort study, we enrolled patients aged 60 years and older with a current or previous cancer diagnosis (excluding those with non-invasive cancers and premalignant or non-malignant conditions) and a current or previous laboratory-confirmed COVID-19 diagnosis who reported to the COVID-19 and Cancer Consortium (CCC19) multinational, multicentre, registry between March 17, 2020, and June 6, 2021. Patients were also excluded for unknown age, missing data resulting in unknown geriatric risk measure, inadequate data quality, or incomplete follow-up resulting in unknown COVID-19 severity. The exposure of interest was the CCC19 geriatric risk index. The primary outcome was COVID-19 severity and the secondary outcome was 30-day all-cause mortality; both were assessed in the full dataset. Adjusted odds ratios (ORs) and 95 per cent CIs were estimated from ordinal and binary logistic regression models.
Findings
5671 patients with cancer and COVID-19 were included in the analysis. Median follow-up time was 56 days (IQR 22–120), and median age was 72 years (IQR 66–79). The CCC19 geriatric risk index identified 2365 (41·7 per cent) patients as standard risk, 2217 (39·1 per cent) patients as intermediate risk, and 1089 (19·2 per cent) as high risk. 36 (0·6 per cent) patients were excluded due to non-calculable geriatric risk index. Compared with standard-risk patients, high-risk patients had significantly higher COVID-19 severity (adjusted OR 7·24; 95 per cent CI 6·20–8·45). 920 (16·2 per cent) of 5671 patients died within 30 days of a COVID-19 diagnosis, including 161 (6·8 per cent) of 2365 standard-risk patients, 409 (18·5 per cent) of 2217 intermediate-risk patients, and 350 (32·1 per cent) of 1089 high-risk patients. High-risk patients had higher adjusted odds of 30-day mortality (adjusted OR 10·7; 95 per cent CI 8·54–13·5) than standard-risk patients.
Interpretation
The CCC19 geriatric risk index was strongly associated with COVID-19 severity and 30-day mortality. Our CCC19 geriatric risk index, based on readily available clinical factors, might provide clinicians with an easy-to-use risk stratification method to identify older adults most at risk for severe COVID-19 as well as mortality.