Table 1. Distribution of sex, age and biochemical findings according to the groups

Mean	Mesothelioma	Pleural plaque	Healthy asbestos exposed subjects	Control subjects	p
	(n=24)	(n=277)	(n=121)	(n=118)
Male %	71	66	69	61	0.53
Age	59	64	63	62	0.076
Folate	5.81	4.53	4.73	4.49	0.002
Vit B12	587	276	264	296	<0.001
Free T3	1.89	3.25	3.26	3.27	<0.001
Free T4	1.23	1.14	1.14	1.16	0.19
TSH	1.44	1.77	1.66	1.42	0.145
Ferritin	371	89	71	89	<0.001
CEA	2.17	2.17	2.23	2.37	0.626
CA15-3	27.1	20.6	17.5	21.5	<0.001
CA19-9	13.8	10.6	10.7	12.3	0.276
CA125	40.2	14.23	11.74	12.6	<0.001