Evidence map›Paper›PMID 25620318›Full record

ArticleBMC medicine2015

Validating estimates of prevalence of non-communicable diseases based on household surveys: the symptomatic diagnosis study.

Spencer L James, Minerva Romero, Dolores Ramírez-Villalobos, Sara Gómez, Kelsey Pierce, Abraham Flaxman, Peter Serina, Andrea Stewart, Christopher J L Murray, Emmanuela Gakidou and 2 more

Open access · goldAbstract readValidation Study
In one paragraph

Article in BMC medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.7field-weighted citation impact, top 27% 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

2 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. 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

12 authors at 4 institutions in 3 countries.

Spencer L James
Minerva Romero
Dolores Ramírez-Villalobos
Sara Gómez
Kelsey Pierce
Abraham Flaxman
Peter Serina
Andrea Stewart
Christopher J L Murray
Emmanuela Gakidou
Rafael Lozano
Bernardo HernandezInstitute for Health Metrics and Evaluation, University of Washington, 2301 Fifth Ave,, Suite 600, Seattle 98121, WA, USA. bhp3@uw.edu.
University of Washington · USInstitute for Health Metrics and Evaluation · USInstituto Nacional de Salud Pública · MXNational Institute of Public Health · KH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEasy-to-collect epidemiological information is critical for the more accurate estimation of the prevalence and burden of different non-communicable diseases around the world. Current measurement is restricted by limitations in existing measurement systems in the developing world and the lack of biometry tests for non-communicable diseases. Diagnosis based on self-reported signs and symptoms ("Symptomatic Diagnosis," or SD) analyzed with computer-based algorithms may be a promising method for collecting timely and reliable information on non-communicable disease prevalence. The objective of this study was to develop and assess the performance of a symptom-based questionnaire to estimate prevalence of non-communicable diseases in low-resource areas.

methodsAs part of the Population Health Metrics Research Consortium study, we collected 1,379 questionnaires in Mexico from individuals who suffered from a non-communicable disease that had been diagnosed with gold standard diagnostic criteria or individuals who did not suffer from any of the 10 target conditions. To make the diagnosis of non-communicable diseases, we selected the Tariff method, a technique developed for verbal autopsy cause of death calculation. We assessed the performance of this instrument and analytical techniques at the individual and population levels.

resultsThe questionnaire revealed that the information on health care experience retrieved achieved 66.1% (95% uncertainty interval [UI], 65.6-66.5%) chance corrected concordance with true diagnosis of non-communicable diseases using health care experience and 0.826 (95% UI, 0.818-0.834) accuracy in its ability to calculate fractions of different causes. SD is also capable of outperforming the current estimation techniques for conditions estimated by questionnaire-based methods.

conclusionsSD is a viable method for producing estimates of the prevalence of non-communicable diseases in areas with low health information infrastructure. This technology can provide higher-resolution prevalence data, more flexible data collection, and potentially individual diagnoses for certain conditions.

Indexed as

Artificial IntelligenceEpidemiologic MethodsPrevalenceSurveys and QuestionnairesAdultAgedAlgorithmsCause of DeathChronic DiseaseData MiningFemaleHealth SurveysHumansMaleMexicoMiddle Aged

Identifiers

PMID25620318
PMCPMC4306245
OpenAlexW2130517884

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.