Table 2.

Demographic features of study subjects.

(n = 2565)		Frequency	Percentage
Sex	Male	1025	40
	Female	1540	60
Age group	16–30 years	641	25
	31–45 years	807	31.5
	46–60 years	692	27
	> 60 years	425	16.6
Place of residence	Urban	793	30.9
	Rural	1772	69.1
Peri-forested	Yes	1108	43.2
	No	1457	56.8
Survey areas	Erode	406	15.8
	Jawadhi Hills	205	8
	Nilgiris	345	13.5
	Palamathi Hills	146	5.7
	Kalrayan Hills	331	12.9
	Salem	181	7.1
	Tiruvannamalai	417	16.3
	Vellore	534	20.8