The NHANES used a stratified, multistage probability-sampling frame and represented the civilian, noninstitutionalized U.S. population.
Thus, weighted estimates produced by data analysis accounted for the multistage sampling design as well as any sampling frame inadequacies and were considered nationally representative.
Depending on the characteristics of each country and its sampling frame, different multistage sampling designs were used; the samples for all countries are representative of the target population (OECD 2013a).
This cross-sectional survey was designed as a multistage stratified, clustered probability sample, the sampling frame includes US residents ≥2 months of age, civilian, non-institutionalised population and NHANES III over sampled those >65 years, Non-Hispanic Blacks and Mexican Americans.
The baseline data were derived from the 1984 National Alcohol Survey, an in-person survey in which respondents were selected through a multistage area probability procedure with a sampling frame including households in the 48 contiguous US states.
Similar to 2002, a multistage sampling design was used to select households using the master sampling frame of census enumeration blocks from the 2004 Jordan census to select the sample of blocks, or primary sampling areas, from which households were selected.
The complex, multistage design incorporated the Census 2000/2001 Supplementary Survey (C2SS) and Census 2000 Group Quarters Inventory sampling frame and oversampled African American, Hispanics, and young adults (18 – 24).
First, their sampling methods were various, including multistage sampling [ 29, 31], convenience sampling [ 35], multistage random cluster sampling [ 30], and cluster sampling [ 33].
