From the 6,206 people aged over 50 years and over selected from the 2005 census, 4,085 (65.8%) responded to a questionnaire.
A cross sectional study conducted among 346 adults 18 years and over selected from large stores across all governorates yielded a much higher estimate (55%) [ 22].
The study population consisted of all indigent persons aged 18 years and over selected by the VHCs (n = 2,093) in 2010.
Briefly, the MAPPING study was conducted on 4000 subjects aged 18 years and over, selected from the practice lists of 16 general practitioner-GPs (total target adult population of 20882 individuals).
The Ibadan study of aging [6] is a longitudinal cohort study of persons aged 65 years and over selected using stratified multistage cluster sampling from eight neighboring states of the Yoruba-speaking region of Nigeria.
In a cross-sectional, population-based study, we used National Cholesterol Education Program (NCEP -Adult TreatmeNCEP -AdultTreatmentriteria in 1791 subjects, aged 25 years and over, selected by cluster random samPanel in three IrATP -IIorts in the northern PersiATP -II.
The population of the source epidemiological survey was a sample of 20,099 insurance policyholders, aged 18 years or over, selected at random (one in every hundred) from a register of unique policy numbers assigned to individual affiliated members of the MGEN.
Controls (median age = 69 years, IQR 62 76 years) were selected over 55 years of age that corresponded to percentile 70 of the age at disease onset in our series of RA patients.
One adult aged 16 years and over is selected randomly from among all the over 16‐year‐olds in each household to be interviewed.
Its six-member teams are selected over years of high-level contests, and trained during intensive summer math camps.
The SSRs were selected over years by Limagrain with respect to their polymorphism information content value [ 61] in various sets of maize inbreds.
