	Spray		Cotton-tipped		X²	P
	No.	%	No.	%	X²	P
Gender
Male	5	62.5	2	28.6	0.63	>0.005
Female	3	37.5	5	71.4	0.63	>0.005
Age (years)
Mean ± SD	60.7 ± 13.2		55 ± 12.5		0.86	>0.005
Range	42 - 80		38 - 70		0.86	>0.005
Residance
Rural	8	100.0	7	100.0	0.0	>0.005
Urban	0	0.0	0	0.0	0.0	>0.005
Total	8	100	7	100