Evidence map›Paper›PMID 33731423›Full record

ArticleCMAJ open

Frequency and source of prescription eyewear insurance coverage in Ontario: a repeated population-based cross-sectional study using survey data.

Prem Nichani, Graham E Trope, Yvonne M Buys, Samuel N Markowitz, Sherif El-Defrawy, Gordon Ngo, Michelle Markowitz, Ya-Ping Jin

Open access · diamondAbstract read
In one paragraph

Article in CMAJ open. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
0.4field-weighted citation impact, top 44% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed, 2 citations in OpenAlex.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Prem NichaniFaculty of Medicine (Nichani), Institute of Health Policy, Management and Evaluation (Nichani), Department of Ophthalmology and Vision Sciences (Trope, Buys, Markowitz, El-Defrawy, Jin) and Dalla Lana School of Public Health (Jin), University of Toronto; Toronto Western Hospital (Trope, Buys, Markowitz), University Health Network; Kensington Eye Institute (El-Defrawy), Toronto, Ont.; Faculty of Medicine (Ngo), University of Western Ontario, London, Ont.; private practice (Markowitz), Toronto, Ont.
Graham E TropeFaculty of Medicine (Nichani), Institute of Health Policy, Management and Evaluation (Nichani), Department of Ophthalmology and Vision Sciences (Trope, Buys, Markowitz, El-Defrawy, Jin) and Dalla Lana School of Public Health (Jin), University of Toronto; Toronto Western Hospital (Trope, Buys, Markowitz), University Health Network; Kensington Eye Institute (El-Defrawy), Toronto, Ont.; Faculty of Medicine (Ngo), University of Western Ontario, London, Ont.; private practice (Markowitz), Toronto, Ont.
Yvonne M BuysFaculty of Medicine (Nichani), Institute of Health Policy, Management and Evaluation (Nichani), Department of Ophthalmology and Vision Sciences (Trope, Buys, Markowitz, El-Defrawy, Jin) and Dalla Lana School of Public Health (Jin), University of Toronto; Toronto Western Hospital (Trope, Buys, Markowitz), University Health Network; Kensington Eye Institute (El-Defrawy), Toronto, Ont.; Faculty of Medicine (Ngo), University of Western Ontario, London, Ont.; private practice (Markowitz), Toronto, Ont.
Samuel N MarkowitzFaculty of Medicine (Nichani), Institute of Health Policy, Management and Evaluation (Nichani), Department of Ophthalmology and Vision Sciences (Trope, Buys, Markowitz, El-Defrawy, Jin) and Dalla Lana School of Public Health (Jin), University of Toronto; Toronto Western Hospital (Trope, Buys, Markowitz), University Health Network; Kensington Eye Institute (El-Defrawy), Toronto, Ont.; Faculty of Medicine (Ngo), University of Western Ontario, London, Ont.; private practice (Markowitz), Toronto, Ont.
Sherif El-DefrawyFaculty of Medicine (Nichani), Institute of Health Policy, Management and Evaluation (Nichani), Department of Ophthalmology and Vision Sciences (Trope, Buys, Markowitz, El-Defrawy, Jin) and Dalla Lana School of Public Health (Jin), University of Toronto; Toronto Western Hospital (Trope, Buys, Markowitz), University Health Network; Kensington Eye Institute (El-Defrawy), Toronto, Ont.; Faculty of Medicine (Ngo), University of Western Ontario, London, Ont.; private practice (Markowitz), Toronto, Ont.
Gordon NgoFaculty of Medicine (Nichani), Institute of Health Policy, Management and Evaluation (Nichani), Department of Ophthalmology and Vision Sciences (Trope, Buys, Markowitz, El-Defrawy, Jin) and Dalla Lana School of Public Health (Jin), University of Toronto; Toronto Western Hospital (Trope, Buys, Markowitz), University Health Network; Kensington Eye Institute (El-Defrawy), Toronto, Ont.; Faculty of Medicine (Ngo), University of Western Ontario, London, Ont.; private practice (Markowitz), Toronto, Ont.
Michelle MarkowitzFaculty of Medicine (Nichani), Institute of Health Policy, Management and Evaluation (Nichani), Department of Ophthalmology and Vision Sciences (Trope, Buys, Markowitz, El-Defrawy, Jin) and Dalla Lana School of Public Health (Jin), University of Toronto; Toronto Western Hospital (Trope, Buys, Markowitz), University Health Network; Kensington Eye Institute (El-Defrawy), Toronto, Ont.; Faculty of Medicine (Ngo), University of Western Ontario, London, Ont.; private practice (Markowitz), Toronto, Ont.
Ya-Ping JinFaculty of Medicine (Nichani), Institute of Health Policy, Management and Evaluation (Nichani), Department of Ophthalmology and Vision Sciences (Trope, Buys, Markowitz, El-Defrawy, Jin) and Dalla Lana School of Public Health (Jin), University of Toronto; Toronto Western Hospital (Trope, Buys, Markowitz), University Health Network; Kensington Eye Institute (El-Defrawy), Toronto, Ont.; Faculty of Medicine (Ngo), University of Western Ontario, London, Ont.; private practice (Markowitz), Toronto, Ont. yaping.jin@utoronto.ca.
University Health Network · CAToronto Western Hospital · CA

Funding

CIHR
6 · The paper itself

Abstract

backgroundInsurance coverage may reduce cost barriers to obtain vision correction. Our aim was to determine the frequency and source of prescription eyewear insurance to understand how Canadians finance optical correction.

methodsWe conducted a repeated population-based cross-sectional study using 2003, 2005 and 2013-2014 Canadian Community Health Survey data from respondents aged 12 years or older from Ontario, Canada. In this group, the cost of prescription eyewear is not covered by the government unless one is registered with a social assistance program or belongs to a specific population. We determined the frequency and source of insurance coverage for prescription eyewear in proportions. We used survey weights provided by Statistics Canada in all analyses to account for sample selection, a complex survey, and adjustments for seasonal effect, poststratification, nonresponse and calibration. We compared unadjusted proportions and adjusted prevalence ratios (PRs) of having insurance.

resultsInsurance covered all or part of the costs of prescription eyewear for 62% of Ontarians in all 3 survey years. Of those insured, 84.1%-86.0% had employer-sponsored coverage, 9.0%-10.3% had government-sponsored coverage, and 5.7%-6.8% had private plans. Employer-sponsored coverage remained constant for those in households with postsecondary graduation but decreased significantly for those in households with less than secondary school graduation, from 67.0% (95% confidence interval [CI] 63.2%-70.8%) (

interpretationSixty-two percent of Ontarians had prescription eyewear insurance in 2003, 2005 and 2013-2014; the largest source of insurance was employers, primarily covering those with higher education levels, whereas government-sponsored insurance increased significantly among those with lower education levels. Further research is needed to elucidate barriers to obtaining prescription eyewear and the degree to which affordability impairs access to vision correction.

Indexed as

AdolescentAdultAgedCanadaChildContact LensesEyeglassesFemaleFinancing, GovernmentHealth Benefit Plans, EmployeeHumansInsurance CoverageInsurance, VisionMaleMiddle AgedOntario

Identifiers

PMID33731423
PMCPMC8034370
OpenAlexW3136379338

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.