Evidence map›Paper›PMID 30092046›Full record

ArticlePloS one2018

Trend analysis for national surveys: Application to all variables from the Canadian Health Measures Survey cycle 1 to 4.

Yi-Sheng Chao, Chao-Jung Wu, Hsing-Chien Wu, Wei-Chih Chen

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In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

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3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Yi-Sheng ChaoCentre de recherche du centre hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal, Montréal, Québec, Canada.ORCID 0000-0002-4019-3586
Chao-Jung WuDépartement d'informatique, Université du Québec à Montréal, Montréal, Québec, Canada.
Hsing-Chien WuTaipei Hospital, Ministry of Health and Welfare, New Taipei city, Taiwan.
Wei-Chih ChenDepartment of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.ORCID 0000-0003-4172-5529

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundTrend analysis summarizes patterns over time in the data to show the direction of change and can be used to investigate uncertainties in different time points and associations with other factors. However, this approach is not widely applied to national surveys and only selected outcomes are investigated. This study demonstrates a research framework to conduct trend analysis for all variables in a national survey, the Canadian Health Measures Survey (CHMS). DATA AND

methodsThe CHMS cycle 1 to 4 was implemented between 2007 and 2015. The characteristics of all variables were screened and associated to the weight variables. Missing values were identified and cleaned according to the User Guide. The characteristics of all variables were extracted and used to guide data cleaning. Trend analysis examined the statistical significance of candidate predictors: the cycles, age, sex, education, household income and body mass index (BMI). R (v3.2) and RStudio (v0.98.113) were used to develop the framework.

resultsThere were 26557 variables in 79 data files from four cycles. There were 1055 variables significantly associated with the CHMS cycles and 2154 associated with the BMI after controlling for other predictors. The trend of blood pressure was similar to those published.

conclusionTrend analysis for all variables in the CHMS is feasible and is a systematic approach to understand the data. Because of trend analysis, we have detected data errors and identified several environmental biomarkers with extreme rates of change across cycles. The impact of these biomarkers has not been well studied by Statistics Canada or others. This framework can be extended to other surveys, especially the Canadian Community Health Survey.

Indexed as

AdultAgedAge FactorsBlood PressureBody Mass IndexCanadaData Interpretation, StatisticalEnvironmental BiomarkersFemaleHealth SurveysHumansMaleMiddle AgedSex FactorsSocioeconomic FactorsTime FactorsEnvironmental Biomarkers

Identifiers

PMID30092046
PMCPMC6084849

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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.