Purola, Petri K. M. http://orcid.org/0000-0001-5308-8622
Nättinen, Janika E.
Ojamo, Matti U. I.
Koskinen, Seppo V. P.
Rissanen, Harri A.
Sainio, Päivi R. J.
Uusitalo, Hannu M. T.
Funding for this research was provided by:
Tampereen seudun Näkövammaisten tukisäätiö s.r
Sokeain Ystävät r.y
Elsemay Björn Fund
Article History
Accepted: 4 March 2021
First Online: 23 March 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: All procedures performed in the Health 2000 and 2011 studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The ethical approval process details are discussed in previous publications [CitationRef removed, CitationRef removed].
: Participants received an information letter regarding the study beforehand. Two informed consents were obtained in the beginning of the study for each individual: one for the health interview and the other for the health examinations [CitationRef removed]. Participants were provided appropriate information concerning the study and asked to sign informed consents again before the follow-up examination in 2011 [CitationRef removed].