Diagnostic category for needle residual materials Diagnostic category for direct smear materials Malignant Benign Non diagnostic Malignant 1 0 0 Benign 0 1 0 Non diagnostic 0 1 1

Kappa value: 0.636; p=0.046

Table 5: Agreement between diagnostic categories for needle residual materials and direct smear materials of salivary glands [n=4].