Received: 4 April 2019
Accepted: 29 May 2019
First Online: 17 June 2019
Ethics approval and consent to participate
: Ethical approval for the study was obtained from the ethics committee in the ‘Universidade Federal de Pelotas’. In the 1982 and 2004 cohorts, written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.