Tumor findings Variables N (%)
Tumor location Transglottic 96(75%)
Supraglottic 32(25%)
Histologic grade Well-differentiated 80(62.5%)
Moderately-differentiated 43(33.6%)
Poorly-differentiated 5(3.9%)
UICC/TNM stage II 21(16.4%)
III 28(21.9%)
Iv 79(61.7%)
Extralaryngeal extension Present 75(58.6%)
Absent 53(41.4%)
Nodal involvement Present 53(41.4%)
Absent 75(58.6%)
Perineural invasion Present 35(27.3%)
Absent 93(72.7%)
Vascular invasion Present 22(17.2%)
Absent 106(82.8%)
Tumor budding Low-budding 51(39.8%)
High-budding 35(27.3%)
Absent 42(32.8%)
Cell nest size Single cell 39(30.5%)
Small 47(36.7%)
Intermediate 24(18.8%)
Large 18(14.1%)
Survival rate Disease-free patients 48(37.5%)
Recurrence and/or death 80(62.5%)