Table 1.

Sample characteristics

	Anthracosis	Malignant
Patients, n	49	30
Examined lymph nodes, n	89	54
Age (years), mean	65.7	65.9
Gender (male:female)	0.69:0.31	0.6:0.4

Age and gender distribution was not significantly different between the study groups (P = 0.940 and P = 0.546, respectively).