Evidence map›Paper›PMID 26214804›Full record

ArticlePloS one2015

The Clinical Effectiveness and Cost-Effectiveness of Screening for Age-Related Macular Degeneration in Japan: A Markov Modeling Study.

Hiroshi Tamura, Rei Goto, Yoko Akune, Yoshimune Hiratsuka, Shusuke Hiragi, Masakazu Yamada

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 40 citations in OpenAlex.

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  12. Telemedicine for Age-Related Macular Degeneration.Telemedicine journal and e-health : the official journal of the American Telemedicine Association · 2020
    Review
  13. Practice Guidelines for Ocular Telehealth-Diabetic Retinopathy, Third Edition.Telemedicine journal and e-health : the official journal of the American Telemedicine Association · 2020
    Article
  14. Article
  15. Observational
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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

6 authors at 5 institutions in 1 country.

Hiroshi TamuraDivision of Medical Information Technology & Administration Planning, Kyoto University Hospital, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Ophthalmology & Visual Sciences, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.
Rei GotoHakubi Center of Advanced Research, Kyoto University, Yoshida, Sakyo, Kyoto 606-8501, Japan; Graduate School of Economics, Kyoto University, Yoshida, Sakyo, Kyoto 606-8501, Japan.
Yoko AkuneNational Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan.
Yoshimune HiratsukaDepartment of Health and Welfare Services, National Institute of Public Health, Wako, Japan.
Shusuke HiragiDivision of Medical Information Technology & Administration Planning, Kyoto University Hospital, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.
Masakazu YamadaDepartment of Ophthalmology, Kyorin University School of Medicine, Tokyo, Japan.
Kyoto University Hospital · JPKyorin University · JPKyoto University · JPNational Institute of Public Health · JPTokyo Medical Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the cost-effectiveness of screening and subsequent intervention for age-related macular degeneration (AMD) in Japan.

methodsThe clinical effectiveness and cost-effectiveness of screening and subsequent intervention for AMD were assessed using a Markov model. The Markov model simulation began at the age of 40 years and concluded at the age of 90 years. The first-eye and second-eye combined model assumed an annual state-transition probability, development of prodromal symptoms, choroidal neovascularization (CNV), and reduction in visual acuity. Anti-vascular-endothelial-growth-factor (anti-VEGF) intravitreal injection therapy and photodynamic therapy (PDT) were performed to treat CNV. Intake of supplements was recommended to patients who had prodromal symptoms and unilateral AMD. Data on prevalence, morbidity, transition probability, utility value of each AMD patient, and treatment costs were obtained from published clinical reports.

resultsIn the base-case analysis, screening for AMD every 5 years, beginning at the age of 50 years, showed a decrease of 41% in the total number of blind patients. The screening program reduced the incidence of blindness more than did the additional intake of supplements. However, the incremental cost-effectiveness ratio (ICER) of screening versus no screening was 27,486,352 Japanese yen (JPY), or 259,942 US dollars (USD) per quality-adjusted life year (QALY). In the sensitivity analysis, prodromal symptom-related factors for AMD had great impacts on the cost-effectiveness of screening. The lowest ICER obtained from the best scenario was 4,913,717 JPY (46,470 USD) per QALY, which was approximately equal to the willingness to pay in Japan.

conclusionsOphthalmologic screening for AMD in adults is highly effective in reducing the number of patients with blindness but not cost-effective as demonstrated by a Markov model based on clinical data from Japan.

Indexed as

Cost-Benefit AnalysisMass ScreeningAdultAgedAged, 80 and overFemaleHealth Care CostsHumansJapanMacular DegenerationMaleMarkov ChainsMiddle AgedModels, StatisticalMorbidityReproducibility of Results

Identifiers

PMID26214804
PMCPMC4516236
OpenAlexW1761708297

What OpenQuestion holds

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LicenceCC BY
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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.