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August 9, 2026BMC Public HealthOpen Access

A decision-tree for trend analyses following major survey redesigns: an analysis using the Canadian Community Health Survey (CCHS)

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Authors

ABAlexandra BlairMPMatthew E. PerksRJRabina Jahan

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Overview

Randomized trial evaluates health inequality indicators post CCHS redesigns, highlighting significant findings.

Key Points

  • This research aims to create a framework to analyze changes in health inequality trends following major survey redesigns.
  • Analyzed Canadian Community Health Survey data from 2007 to 2024.
  • Estimated crude prevalence of 20 health indicators and assessed relative and absolute changes after redesigns.
  • Utilized a decision-tree and generalized linear models to evaluate data comparability and flagged indicators for further review.
  • No health indicators met all criteria post-2015 redesign.
  • Post-2022, food insecurity and self-rated health showed marginal meets of assessment criteria, suggesting areas needing further investigation.
  • Highlighting the importance of continued caution regarding redesign impacts on indicators.

Cite This Study

Blair et al. (2026) studied this question.

synapsesocial.com/papers/6a782d3b2e1896536c840130https://doi.org/10.1186/s12889-026-28851-7
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