Neutrophil-lymphocyte ratio and absolute lymphocyte count as prognostic markers in patients treated with curative-intent radiotherapy for non-small cell lung cancer
Authors
Punjabi, A.Barrett, E.
Cheng, A.
Mulla, A.
Walls, G.
Johnston, D.
McAleese, J.
Moore, K.
Hicks, J.
Blyth, K.
Denholm, M.
Magee, L.
Gilligan, D.
Silverman, S.
Qureshi, M.
Clinch, H.
Hatton, M.
Philipps, L.
Brown, S.
O'Brien, M.
McDonald, F.
Faivre-Finn, Corinne
Hiley, C
Evison, M.
Affiliation
Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK.Issue Date
2021
Metadata
Show full item recordAbstract
Aims: The neutrophil-lymphocyte ratio (NLR) and the absolute lymphocyte count (ALC) have been proposed as prognostic markers in non-small cell lung cancer (NSCLC). The objective of this study was to examine the association of NLR/ALC before and after curative-intent radiotherapy for NSCLC on disease recurrence and overall survival. Materials and methods: A retrospective study of consecutive patients who underwent curative-intent radiotherapy for NSCLC across nine sites in the UK from 1 October 2014 to 1 October 2016. A multivariate analysis was carried out to assess the ability of pre-treatment NLR/ALC, post-treatment NLR/ALC and change in NLR/ALC, adjusted for confounding factors using the Cox proportional hazards model, to predict disease recurrence and overall survival within 2 years of treatment. Results: In total, 425 patients were identified with complete blood parameter values. None of the NLR/ALC parameters were independent predictors of disease recurrence. Higher pre-NLR, post-NLR and change in NLR plus lower post-ALC were all independent predictors of worse survival. Receiver operator curve analysis found a pre-NLR > 2.5 (odds ratio 1.71, 95% confidence interval 1.06-2.79, P < 0.05), a post-NLR > 5.5 (odds ratio 2.36, 95% confidence interval 1.49-3.76, P < 0.001), a change in NLR >3.6 (odds ratio 2.41, 95% confidence interval 1.5-3.91, P < 0.001) and a post-ALC < 0.8 (odds ratio 2.86, 95% confidence interval 1.76-4.69, P < 0.001) optimally predicted poor overall survival on both univariate and multivariate analysis when adjusted for confounding factors. Median overall survival for the high-versus low-risk groups were: pre-NLR 770 versus 1009 days (P = 0.34), post-NLR 596 versus 1287 days (P ≤ 0.001), change in NLR 553 versus 1214 days (P ≤ 0.001) and post-ALC 594 versus 1287 days (P ≤ 0.001). Conclusion: NLR and ALC, surrogate markers for systemic inflammation, have prognostic value in NSCLC patients treated with curative-intent radiotherapy. These simple and readily available parameters may have a future role in risk stratification post-treatment to inform the intensity of surveillance protocols.Citation
Punjabi A, Barrett E, Cheng A, Mulla A, Walls G, Johnston D, et al. Neutrophil–Lymphocyte Ratio and Absolute Lymphocyte Count as Prognostic Markers in Patients Treated with Curative-intent Radiotherapy for Non-small Cell Lung Cancer. Clinical Oncology. 2021 Aug;33(8):e331–8.Journal
Clinical OncologyDOI
10.1016/j.clon.2021.03.019PubMed ID
33863615Additional Links
https://dx.doi.org/10.1016/j.clon.2021.03.019Type
ArticleLanguage
enae974a485f413a2113503eed53cd6c53
10.1016/j.clon.2021.03.019
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