just outside significancep = 0.06
For tongue cases, positive margins (0 mm), 1 mm to < 2 mm margins, 2 mm to < 3 mm margins, and 3 mm to < 4 mm margins, were all associated with significantly increased risk of LR compared to clear (≥ 5 mm) margins, while 0.1 mm to < 1 mm margins were just outside significance ( p = 0.06).