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Supplemental Information

Table S1 - summary of literature

DOI: 10.7287/peerj.preprints.738v2/supp-1

Variables used in the study

Table 2. Ordinal Odds Ratios Representing the Effect of Potential Contributing Factors to Self- reported Vision (Excellent, Very Good, Good, Fair, Poor). Participants suffering from Dementia, Parkinson’s Disease and serious memory impairment (all by self-report) were excluded from the analysis because they present cognitive impairment or neurologic illness that could influence the relationship between cognition and self-reported vision. Analyses are adjusted for clustered sample design and sampling weights.

DOI: 10.7287/peerj.preprints.738v2/supp-2

Additional Information

Competing Interests

The authors declare they have no competing interests.

Author Contributions

Annalisa Setti conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

James Loughman conceived and designed the experiments, performed the experiments, contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper.

George M Savva conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, reviewed drafts of the paper.

RoseAnne Kenny performed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Human Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Data from the first wave of the nationally representative Irish Longitudinal Study on Ageing (TILDA), were used for this study. The recruitment and sampling method has been described (Kearney et al. 2011). Ethical approval was obtained from the Trinity College Dublin research ethics committee, and all participants provided written informed consent in accordance with the Declaration of Helsinki.

Data Deposition

The following information was supplied regarding the deposition of related data:

http://www.ucd.ie/issda/data/tilda/

Funding

This work was funded by The Irish Longitudinal Study on Ageing (TILDA). Funding for TILDA was received from the Atlantic Philanthropies, the Irish Government, and Irish Life plc. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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