Evidence map›Paper›PMID 25709923›Full record

ArticleInternational journal of ophthalmology2015

Using Markov Chains to predict the natural progression of diabetic retinopathy.

Priyanka Srikanth

Abstract read
In one paragraph

Article in International journal of ophthalmology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

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0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. States Transitions Inference of Postpartum Depression Based on Multi-State Markov Model.International journal of environmental research and public health · 2021
    Article
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4 · The record

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5 · Who and what money

Authors and funding

1 author.

Priyanka SrikanthJaslok Hospital & Research Centre, 15, Dr. Deshmukh Marg, Pedder Road, Mumbai, Maharashtra 400026, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo study the natural progression of diabetic retinopathy in patients with type 2 diabetes.

methodsThis was an observational study of 153 cases with type 2 diabetes from 2010 to 2013. The state of patient was noted at end of each year and transition matrices were developed to model movement between years. Patients who progressed to severe non-proliferative diabetic retinopathy (NPDR) were treated. Markov Chains and Chi-square test were used for statistical analysis.

resultsWe modelled the transition of 153 patients from NPDR to blindness on an annual basis. At the end of year 3, we compared results from the Markov model versus actual data. The results from Chi-square test confirmed that there was statistically no significant difference (P=0.70) which provided assurance that the model was robust to estimate mean sojourn times. The key finding was that a patient entering the system in mild NPDR state is expected to stay in that state for 5y followed by 1.07y in moderate NPDR, be in the severe NPDR state for 1.33y before moving into PDR for roughly 8y. It is therefore expected that such a patient entering the model in a state of mild NPDR will enter blindness after 15.29y.

conclusionPatients stay for long time periods in mild NPDR before transitioning into moderate NPDR. However, they move rapidly from moderate NPDR to proliferative diabetic retinopathy (PDR) and stay in that state for long periods before transitioning into blindness.

Indexed as

Chi-square testdiabetes mellitusdiabetic retinopathyMarkov Chainstransition probability matrix

Identifiers

PMID25709923
PMCPMC4325257

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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.