Evidence map›Paper›PMID 35672067›Full record

Observational studyBMJ open2022

Pairing regression and configurational analysis in health services research: modelling outcomes in an observational cohort using a split-sample design.

Edward J Miech, Anthony J Perkins, Ying Zhang, Laura J Myers, Jason J Sico, Joanne Daggy, Dawn M Bravata

Registry-linked trialAbstract readObservational Study
In one paragraph

Observational study in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04322162 (Addressing Sleep Apnea Post-Stroke), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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.

NCT04322162 naunknown statusnot on this map

Addressing Sleep Apnea Post-Stroke (ASAP)

TypeinterventionalSponsorVA Office of Research and DevelopmentRan2020 to 2024Enrolled6ConditionsIschemic Stroke, Transient Ischemic Attack (TIA), Obstructive Sleep ApneaArmsASAP Intervention Quality Improvement Protocol
3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
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

7 authors.

Edward J MiechQuality Enhancement Research Initiative (QUERI) and Health Services Research and Development (HSR&D), Roudebush VA Medical Center, Indianapolis, Indiana, USA edward.miech@va.gov.ORCID 0000-0002-7187-1570
Anthony J PerkinsBiostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Ying ZhangDepartment of Biostatistics, University of Nebraska Medical Center, Omaha, Nebraska, USA.
Laura J MyersQuality Enhancement Research Initiative (QUERI) and Health Services Research and Development (HSR&D), Roudebush VA Medical Center, Indianapolis, Indiana, USA.
Jason J SicoNeurology Service, VA Connecticut Healthcare System, West Haven, Connecticut, USA.
Joanne DaggyBiostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Dawn M BravataQuality Enhancement Research Initiative (QUERI) and Health Services Research and Development (HSR&D), Roudebush VA Medical Center, Indianapolis, Indiana, USA.ORCID 0000-0002-3048-2536

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
HSRD VA I50 HX003205NCATS NIH HHS UL1 TR001863
6 · The paper itself

Abstract

backgroundConfigurational methods are increasingly being used in health services research.

objectivesTo use configurational analysis and logistic regression within a single data set to compare results from the two methods.

designSecondary analysis of an observational cohort; a split-sample design involved randomly dividing patients into training and validation samples. PARTICIPANTS AND

settingPatients who had a transient ischaemic attack (TIA) in US Department of Veterans Affairs hospitals. MEASURES: The patient outcome was the combined endpoint of all-cause mortality or recurrent ischaemic stroke within 1 year post-TIA. The quality-of-care outcome was the without-fail rate (proportion of patients who received all processes for which they were eligible, among seven processes).

resultsFor the recurrent stroke or death outcome, configurational analysis yielded a three-pathway model identifying a set of (validation sample) patients where the prevalence was 15.0% (83/552), substantially higher than the overall sample prevalence of 11.0% (relative difference, 36%). The configurational model had a sensitivity (coverage) of 84.7% and specificity of 40.6%. The logistic regression model identified six factors associated with the combined endpoint (c-statistic, 0.632; sensitivity, 63.3%; specificity, 63.1%). None of these factors were elements of the configurational model. For the quality outcome, configurational analysis yielded a single-pathway model identifying a set of (validation sample) patients where the without-fail rate was 64.3% (231/359), nearly twice the overall sample prevalence (33.7%). The configurational model had a sensitivity (coverage) of 77.3% and specificity of 78.2%. The logistic regression model identified seven factors associated with the without-fail rate (c-statistic, 0.822; sensitivity, 80.3%; specificity, 84.2%). Two of these factors were also identified in the configurational analysis.

conclusionsConfigurational analysis and logistic regression represent different methods that can enhance our understanding of a data set when paired together. Configurational models optimise sensitivity with relatively few conditions. Logistic regression models discriminate cases from controls and provided inferential relationships between outcomes and independent variables.

Indexed as

Brain IschemiaIschemic Attack, TransientStrokeCohort StudiesHealth Services ResearchHumansneurologystatistics & research methodsstroke

Identifiers

PMID35672067
PMCPMC9174826

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.