2) people domiciled in minburi aged 15 years or more the number of items to be calculated 110531 sample size using the formula of khret Regency and Morgan (Morgan and Krejcie, 1970), as follows:
2) individuals who are domiciled in the Min age from 15 years to 110,531 the number to be calculated using the formula of the sample size of Krejcie and Morgan (Krejcie and Morgan, 1970) as follows.
2) people with domicile in area, age 15 years, were 110 531 cases. Be calculated to find the sample size by using the formula of krejci and Morgan (Krejcie, and Morgan 1970) as follows.