showed a trendp = 0.052
The univariate analysis showed a trend that patients without post-resection radiotherapy experienced longer OS than patients with post-resection radiotherapy [HR 0.48 (95% CI 0.23 to 1.01, p = 0.052)], which was not confirmed by multivariate analysis, with an adjusted HR of 0.90 (95% CI 0.37 to 2.20, p = 0.816).