Positive n = 18 Negative n = 26 p value Ipsilateral level II (n = 2)     0.162 Positive 2 (11.1%) 0 (0.0%) Negative 16 (88.9%) 26 (100.0%) Ipsilateral level III & IV (n = 3)     0.062 Positive 3 (16.7%) 0 (0.0%) Negative 15 (83.3%) 26 (100.0%) Ipsilateral level V (n = 7)     0.001 Positive 7 (38.9%) 0 (0.0%) Negative 11 (61.1%) 26 (100.0%)

Table 3: Relation between ipsilateral level VI lymph node involvement and other levels of lymph node involvement