Table 3.

The comparison of procalcitonin levels based on tumour diagnosis

Variables		n	Procalcitonin levels		p value
			mean ± SD	median (min-max)
Cytology/ histopathology	Adenocarcinoma	(n = 55)	1.02 ± 2.06	0.34 (0.02 - 11.9)	0.206 a
	Squamous Cell Carcinoma and large cell	(n = 13)	0.91 ± 1.24	0.48 (0.14 - 4.2)
Stage	I	(n = 8)	1.21 ± 2.23	0.44 (0.02 - 6.71)	0.12 b
	II	(n = 10)	0.84 ± 0.45	0.90 (0.14 - 1.47)
	III	(n = 9)	0.63 ± 1.04	0.17 (0.04 - 2.86)
	IV	(n = 41)	1.07 ± 2.24	0.25 (0.02 - 11.9)

a) Mann-Whitney test; b) Kruskal Wallis test.