showed a trendP = .05
Cox‐regression analysis showed a trend for surgical margin less than equal to 1 mm, to affect LRR ( P = .05) and surgical margin less than equal 1 mm, perineural invasion and lymph node metastasis to affect DSS ( P < .05).
Cox‐regression analysis showed a trend for surgical margin less than equal to 1 mm, to affect LRR ( P = .05) and surgical margin less than equal 1 mm, perineural invasion and lymph node metastasis to affect DSS ( P < .05).