The individuals in this study belong to three of the main population-based Brazilian cohorts: Salvador (n=1309), Bambui (n=1442) and Pelotas (n=3736), from Northeast, Southeast and Southern Brazil respectively. They have collected data of clinical and biomedical interest for more than 10 years for each of the participants.
The project comprises the 1982 Pelotas birth cohort study, the Bambui cohort study of ageing , and the Salvador-Scaala study. The Epigen protocol was approved by Brazil's national research ethics committee, the Conselho Nacional de Ética em Pesquisa (CONEP, resolution number 15895, Brasília).
More information about the cohorts are available at:
Victora CG, Barros FC (2006). Cohort profile: the 1982 Pelotas (Brazil) birth cohort study. Int J Epidemiol.35(2):237-42
Lima-Costa MF, Firmo JO, Uchoa E (2011) Cohort profile: the Bambui (Brazil) Cohort Study of Ageing. Int J Epidemiol 40(4):862-7
Barreto ML et al. (2006). Risk factors and immunological pathways for asthma and other allergic diseases in children: background and methodology of a longitudinal study in a large urban center in Northeastern Brazil (Salvador-SCAALA Study). BMC Pulmonary Medicine 6(1):e15