Table 2. Characteristics of forest workers.

Operation		Height (cm)	Weight (kg)	Age	Underlying disease	Work experience (Year)
Site1	Worker1	176	83	69	N	Over 20
	Worker2	170	63	58	N	Over 10
	Worker3	174	58	60	N	10
	Worker4	163	58	62	N	10
Site2	Worker5	171	62	61	N	10
	Worker6	168	68	61	N	15
	Worker7	165	56	67	N	15
Site3	Worker8	177	81	66	N	10
	Worker9	171	66	52	N	10
	Worker10	174	84	58	N	10
	Worker11	169	61	48	N	10
Site4	Worker12	174	58	64	N	Over 20
	Worker13	171	68	57	N	Over 20
	Worker14	167	70	72	N	Over 20
Site5	Worker15	174	65	58	N	Over 20
	Worker16	182	81	47	N	10
	Worker17	165	56	55	N	10