Abstract
Background
Early-onset colon cancers are increasing and the independent influence of age on prognosis and therapeutic efficacy of adjuvant therapy is unclear. The primary aim of the present study was to determine if young age was an independent prognostic factor for survival. Secondarily, age would be used in the context of known factors that predict benefit with adjuvant chemotherapy in stages II and III.
Methods
Retrospective, single centre study of operated, non-metastatic colon cancer (> 15 cm from anal verge) without pre-operative therapy. Early onset cancers were defined as age ≤ 45 years. Primary endpoint was disease-free survival (DFS).
Results
Six-hundred thirty-three patients were included with 206 (32.5%) early-onset cancers. With a median follow-up of 48 months, 5-year DFS was 79.5% and 76.2% for early and late-onset cancers, respectively (p – 0.585). In multivariate analysis, only tumour sidedness, family history, T4 stage, node positivity and microsatellite instability status influenced DFS and not the age of onset (HR — 0.969; 95% — 0.63–1.49). These results were consistent with different models and with stage-wise distribution.
Conclusions
Early-onset colon cancers treated with curative intent had survivals similar to older cohorts. Age was not an independent prognostic factor for recurrences. Age did not influence disease-free survival when stage-wise predictive variables for therapeutic benefit with adjuvant chemotherapy were considered.
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Data availability
The data that support the findings of this study are available on request from the corresponding author on reasonable request. The data are not publicly available due to privacy or ethical restrictions.
Abbreviations
- ASA :
-
American Society of Anaesthesiologist
- BMI :
-
Body-mass Index
- CEA :
-
Carcinoembryonic antigen
- CI :
-
Confidence interval
- CRC :
-
Colorectal cancer
- CT :
-
Computerized tomography
- DFS :
-
Disease-free survival
- ECOG :
-
Eastern Cooperative Oncology Group
- HR :
-
Hazard ratios
- IDEA :
-
International duration evaluation of adjuvant chemotherapy
- IQR:
-
inter-quartile range
- MSI :
-
Microsatellite instability
- NCCN :
-
National Comprehensive Cancer Network
- OS :
-
Overall survival
- SD :
-
Standard deviation
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Kazi, M., Gori, J., Srivishnu, S. et al. Early-onset non-metastatic colon cancers do not portend worse prognosis — implications for adjuvant chemotherapy. Langenbecks Arch Surg 407, 2027–2034 (2022). https://doi.org/10.1007/s00423-022-02500-0
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DOI: https://doi.org/10.1007/s00423-022-02500-0