Prognostic role of metformin intake in diabetic patients with colorectal cancer: An updated qualitative evidence of cohort studies.

Oncotarget · 2017 · PMC5432271 · PMID 28103573

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did not reach statistical significanceno p-value reported

However, though it did not reach statistical significance for some subsets, the trends all indicated that patients with metformin intake had favorable OS, probably due to the limited sample size or statistical power involved.

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