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External validity was analysed by calculating firstly the prevalence of the self-reported SEP measures, and then (i) Estimating agreement between the quantitative (survey) and qualitative (interview) data: as percentage, for age left school and job done for most of working life data.
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Cohen's κ was used to estimate agreement between the two data sources.
Cohen's κ was used to estimate agreement between the RAI-MDS and administrative health data.
Given this context, the purpose of this study was to estimate agreement between medication information recorded in population-based RAI-MDS and prescription drug administrative data.
Cohen's κ was used to estimate agreement between the RAI-MDS and administrative data; 95% confidence intervals (CIs) were also computed.
The purpose of this research was to estimate agreement between two population-based electronic data sources for measuring use of several medication classes among LTCF residents: outpatient prescription drug administrative data and the Resident Assessment Instrument Minimum Data Set (RAI-MDS) Version 2.0.
In order to evaluate the reliability and validity of responses to the short form food security scale, we first explored the consistency of the scale items [ 3] and estimated agreement between responses obtained from individual respondents from the same households.
To our knowledge, this is the first study to estimate agreement between diagnoses based on blinded clinical (physiotherapy) examinations, and a range of diagnoses using available reference standards and other classification categories, in patients presenting with pain presumably of lumbopelvic origin.
Comparing median step counts or assessing correlation coefficients over-estimates agreement between pedometer and accelerometer data.
The objectives of this methodological paper are to: (1) estimate agreement between the two data sources for irritable bowel syndrome (IBS) and compare the results to those for inflammatory bowel disease (IBD); (2) compare the frequency of IBS-related diagnoses in administrative data for survey respondents with and without self-reported IBS, and (3) estimate IBS prevalence from both sources.
To estimate the agreement between interview-ascertained medication use and pharmacy records among the population aged older than 50 years, and to identify patient-level predictors of discordance.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com