Table 1. Demographic data of the Orang Asli.

Tribes	Age (years)		Gender
	Mean	Range	Male	Female
Negritos
Bateq	32.8	20–45	8	1
Kensiu	42.2	18–59	5	5
Lanoh	40.0	17–67	5	5
Senoi
Che Wong	33.3	18–70	5	8
Semai	34.6	19–52	5	9
Proto-Malay
Kanaq	35.4	23–52	1	5