Table 2.

Trends in the clinical profile over the study period.

Clinical parameter	Total∗		Chi	df	P value
	No.	(%)
Single	846	86.4	64.9	3	<0.0001
Multiple	133	13.6
Total	979	100.0
Exposed area	893	88.7	1.2	3	0.74887
Covered areas	114	11.3
Total	1007	100.0
Less than 2cm	672	65.0	51.4	3	<0.0001
larger	362	35.0
Total	1034	100.0
Nonulcerative	509	49.5	22.5	3	<0.0001
Ulcerative	519	50.5
Total	1028	100.0
Up to 6months	764	74.1	39.2	12	<0.0001
7-12 months	200	19.4
Over 12	67	6.5
Total	1031	100.0
Lesion associated itchiness at anytime	61	18.4	107.9	6	<0.0001
Never	271	81.6
Total	332	100.0

∗Missing cases or variables were excluded.