TY - JOUR
T1 - Sampling design for the study of Cardiovascular Risks in Adolescents (ERICA)
AU - de Vasconcellos, Mauricio Teixeira Leite
AU - do Silva, Pedro Luis Nascimento
AU - Szklo, Moyses
AU - Kuschnir, Maria Cristina Caetano
AU - Klein, Carlos Henrique
AU - De Abreu, Gabriela Azevedo
AU - Barufaldi, Laura Augusta
AU - Bloch, Katia Vergetti
N1 - Publisher Copyright:
© 2015 Fundacao Oswaldo Cruz. All rights reserved.
PY - 2015/6/20
Y1 - 2015/6/20
N2 - The Study of Cardiovascular Risk in Adolescents (ERICA) aims to estimate the prevalence of cardiovascular risk factors and metabolic syndrome in adolescents (12-17 years) enrolled in public and private schools of the 273 municipalities with over 100,000 inhabitants in Brazil. The study population was stratified into 32 geographical strata (27 capitals and five sets with other municipalities in each macro-region of the country) and a sample of 1,251 schools was selected with probability proportional to size. In each school three combinations of shift (morning and afternoon) and grade were selected, and within each of these combinations, one class was selected. All eligible students in the selected classes were included in the study. The design sampling weights were calculated by the product of the reciprocals of the inclusion probabilities in each sampling stage, and were later calibrated considering the projections of the numbers of adolescents enrolled in schools located in the geographical strata by sex and age.
AB - The Study of Cardiovascular Risk in Adolescents (ERICA) aims to estimate the prevalence of cardiovascular risk factors and metabolic syndrome in adolescents (12-17 years) enrolled in public and private schools of the 273 municipalities with over 100,000 inhabitants in Brazil. The study population was stratified into 32 geographical strata (27 capitals and five sets with other municipalities in each macro-region of the country) and a sample of 1,251 schools was selected with probability proportional to size. In each school three combinations of shift (morning and afternoon) and grade were selected, and within each of these combinations, one class was selected. All eligible students in the selected classes were included in the study. The design sampling weights were calculated by the product of the reciprocals of the inclusion probabilities in each sampling stage, and were later calibrated considering the projections of the numbers of adolescents enrolled in schools located in the geographical strata by sex and age.
KW - Adolescent
KW - Cardiovascular Diseases
KW - Sampling Studies
KW - Statistical Models
UR - http://www.scopus.com/inward/record.url?scp=84931356893&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84931356893&partnerID=8YFLogxK
U2 - 10.1590/0102-311X00043214
DO - 10.1590/0102-311X00043214
M3 - Article
C2 - 26083168
AN - SCOPUS:84931356893
SN - 0102-311X
VL - 31
SP - 921
EP - 930
JO - Cadernos de saude publica
JF - Cadernos de saude publica
IS - 5
ER -