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Purpose <p>Glioblastoma is the most prevalent primary malignant brain tumour in adults and bears poor survival. Data on associations of nutrition with outcome parameters are scarce. Our aim was to investigate whether dietary habits influence chemotherapy-related toxicity and overall survival in patients with glioblastoma.</p> Methods <p>In this retrospective cohort study, we included glioblastoma patients who received treatment between January 2010 and December 2019. We used a 35-item food frequency questionnaire to calculate a dietary score based on Mediterranean-like diet recommendations. We analysed relationships between nutrition score, side effects and survival using chi square tests, binary logistic regression, Kaplan-Meier and multivariable Cox regression analyses.</p> Results <p>From an initial population of 1,448 patients, a homogenous cohort of 128 glioblastoma cases were included in our final analysis. Patients with a higher score than the median, tending to a more Mediterranean-like diet, showed more infections (13.8% vs. 3.2%, <i>p</i> = 0.031) and a trend for more myelodepression (32.3% vs. 17.5%, <i>p</i> = 0.052). A higher score was predictive for infections (OR = 12.33, 95% CI: 1.36-111.98; <i>p</i> = 0.026). Median survival was worse in the higher score group (16.6 vs. 19.4 months, <i>p</i> = 0.004), confirmed by multivariable cox regression analysis (HR 1.60, 95% CI 1.04–2.46; <i>p</i> = 0.034).</p> Conclusion <p>We identified associations between dietary patterns and chemotherapy-related toxicity as well as outcome. Our findings underscore the potential impact of nutrition on cancer treatment outcomes. Further research is needed to validate these results and to address possible underlying mechanisms.</p>

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Dietary habits in relation to outcome and therapy-related toxicity in patients with glioblastoma – a retrospective cohort study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月21日

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  • Tareq M. Haedenkamp,
  • Linda Götz,
  • Tananeh Ansafi,
  • Michael Gerken,
  • Monika Klinkhammer-Schalke,
  • Anna Fischl,
  • Markus J. Riemenschneider,
  • Julia Maurer,
  • Martin Proescholdt,
  • Oliver Kölbl,
  • Nils Ole Schmidt,
  • Ralf Linker,
  • Elisabeth Bumes,
  • Peter Hau

摘要

Purpose

Glioblastoma is the most prevalent primary malignant brain tumour in adults and bears poor survival. Data on associations of nutrition with outcome parameters are scarce. Our aim was to investigate whether dietary habits influence chemotherapy-related toxicity and overall survival in patients with glioblastoma.

Methods

In this retrospective cohort study, we included glioblastoma patients who received treatment between January 2010 and December 2019. We used a 35-item food frequency questionnaire to calculate a dietary score based on Mediterranean-like diet recommendations. We analysed relationships between nutrition score, side effects and survival using chi square tests, binary logistic regression, Kaplan-Meier and multivariable Cox regression analyses.

Results

From an initial population of 1,448 patients, a homogenous cohort of 128 glioblastoma cases were included in our final analysis. Patients with a higher score than the median, tending to a more Mediterranean-like diet, showed more infections (13.8% vs. 3.2%, p = 0.031) and a trend for more myelodepression (32.3% vs. 17.5%, p = 0.052). A higher score was predictive for infections (OR = 12.33, 95% CI: 1.36-111.98; p = 0.026). Median survival was worse in the higher score group (16.6 vs. 19.4 months, p = 0.004), confirmed by multivariable cox regression analysis (HR 1.60, 95% CI 1.04–2.46; p = 0.034).

Conclusion

We identified associations between dietary patterns and chemotherapy-related toxicity as well as outcome. Our findings underscore the potential impact of nutrition on cancer treatment outcomes. Further research is needed to validate these results and to address possible underlying mechanisms.