Evidence map›Paper›PMID 27369084›Full record

ArticleMedical decision making : an international journal of the Society for Medical Decision Making2016

Changing Cycle Lengths in State-Transition Models: Challenges and Solutions.

Jagpreet Chhatwal, Suren Jayasuriya, Elamin H Elbasha

Abstract read
In one paragraph

Article in Medical decision making : an international journal of the Society for Medical Decision Making, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Trial
  2. Article
  3. Evaluating Semi-Markov Processes and Other Epidemiological Time-to-Event Models by Computing Disease Sojourn Density as Partial Differential Equations.Medical decision making : an international journal of the Society for Medical Decision Making · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Comparison of Decision Modeling Approaches for Health Technology and Policy Evaluation.Medical decision making : an international journal of the Society for Medical Decision Making · 2021
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Estimating Long-Term Drinking Patterns for People with Lifetime Alcohol Use Disorder.Medical decision making : an international journal of the Society for Medical Decision Making · 2019
    Article
  17. Review
  18. Review
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

3 authors.

Jagpreet ChhatwalInstitute for Technology Assessment, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA (JC)
Suren JayasuriyaSchool of Electrical and Computer Engineering, Cornell University, Ithaca, NY, USA (SJ)
Elamin H ElbashaMerck Research Laboratories, Merck & Co., North Wales, PA, USA (EHE)

Funding

Training, Outreach & Diversity ComponentU54GM088491 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BROWN, SHAWN T. · 2009 to 2018
$16.7M
University of Pittsburgh Clinical and Translational Science InstitutionKL2TR000146 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$8.7M
NCATS NIH HHS KL2 TR000146NIGMS NIH HHS U54 GM088491
6 · The paper itself

Abstract

The choice of a cycle length in state-transition models should be determined by the frequency of clinical events and interventions. Sometimes there is need to decrease the cycle length of an existing state-transition model to reduce error in outcomes resulting from discretization of the underlying continuous-time phenomena or to increase the cycle length to gain computational efficiency. Cycle length conversion is also frequently required if a new state-transition model is built using observational data that have a different measurement interval than the model's cycle length. We show that a commonly used method of converting transition probabilities to different cycle lengths is incorrect and can provide imprecise estimates of model outcomes. We present an accurate approach that is based on finding the root of a transition probability matrix using eigendecomposition. We present underlying mathematical challenges of converting cycle length in state-transition models and provide numerical approximation methods when the eigendecomposition method fails. Several examples and analytical proofs show that our approach is more general and leads to more accurate estimates of model outcomes than the commonly used approach. MATLAB codes and a user-friendly online toolkit are made available for the implementation of the proposed methods.

Indexed as

Clinical Decision-MakingData Interpretation, StatisticalProbabilityCost-Benefit AnalysisHumansMarkov ChainsModels, TheoreticalObservational Studies as Topiccost-effectiveness analysisdecision analysisglobal healthMarkov modelsmathematical models

Identifiers

PMID27369084
PMCPMC5045797

What OpenQuestion holds

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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.