The sample for the 1999 KDHS successfully interviewed 4,800 women 15-49 years of age and 1,440 men 15-59 years of age.
The sampling frame for the 1999 KDHS consisted of the lists of health blocks obtained from local health-care departments and the Ministry of Health (for urban areas), and of the lists of villages obtained from the National Statistical Agency.
The 1999 KDHS sample was a stratified two-stage sample. Stratification was achieved by dividing each survey region into urban and rural areas. In the first stage of selection, 251 health blocks and villages were selected as primary sampling units (PSUs) with probability proportional to the population count. A complete listing of the households residing in the selected blocks and villages was carried out. The lists of households served as the sampling frame for the systematic selection of 6336 households in the second stage. Women age 15-49 were identified and interviewed in selected households. Every third household was identified as selected for the male survey, and in those households, all men age 15-59 were interviewed.
The 2012 HHS was conducted in summer of 2012 through face-to-face interviews in 12,000 randomly selected households, based on a sample frame stratified to be nationally and sub-national representative along a number of key variables including gender, personal and household income, household size and geographical location.
This HHS covered households across the Republic of Kazakhstan with differentiation by national and sub-national levels, rural and urban areas and income/welfare quintiles. It will include measurements of blood pressure, blood cholesterol and Body Mass Index (BMI).