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Canadian Community Health Survey (CCHS) - Annual Component

This overview provides information on the Canadian Community Health Survey (CCHS), including its history, important changes, survey design, collection methods, data processing, weighting, and content plan. It also highlights the inclusion of new variables and the Canadian Active Living Environment (CANALE) variable in the 2015-2016 Public Use Microdata File (PUMF).

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Canadian Community Health Survey (CCHS) - Annual Component

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  1. Canadian Community Health Survey (CCHS) - Annual Component Survey Overview - DLI Halifax Training May 9th, 2019

  2. Overview Survey Overview Content overview through the years Important changes about 2015 redesign 2015-16 CCHS PUMF1 Future modernizations 1 – Public Use Microdata File

  3. Survey overview - history Started with Health Information Roadmap -1999 Adoption of an indicator framework Health behaviours Health surveillance Access to health care system CCHS annual program and focus content program Governing committee – Canadian Population Health Survey Program Health Canada, Public Health Agency of Canada Expertgroups

  4. Survey Overview - Objectives • Health surveillance at the national, provincial and sub-provincial levels • Analysis on small populations and rare characteristics  • Readily available data to a diversified user community in a timely fashion • Flexible survey instrument

  5. Survey Overview: Design • Residents of private households aged 12 and over • Exclusions: • Aboriginal reserves / settlements • institutions (health institutions, prisons, religious institutions, convents, etc.) • members of Canadian Forces • Residents of certain very remote areas • Coverage (general) ~97% of targeted population • Designed to provide reliable estimates at the health region level with two years of data

  6. Survey overview: Health Regions • Administration of health in the provinces is divided into health regions. • PEI and territories each are designated as their own single HR • For CCHS 2015-2016, data was collected for 104 HRs in the provinces, in PEI and in each territory, totalling 108 HRs • This is the lowest level of geography on the PUMF, after some grouping*

  7. Survey overview: Collection • The CCHS is collected by interviewers using a computer based questionnaire: • 20% in person, and • 80% by telephone • Respondents aged 12-15 interviewed alone with parental consent • 2.5% of cases completed by proxy

  8. Survey overview: Data processing • During the interview, questions get skipped for various reasons and need coding: • Non-response • Interview incomplete • Question not relevant • “Other – specify” responses are sometimes recoded to a response category • Derived variables are added to the file based on responses These cases are coded as “Not stated” Coded as “Not applicable”

  9. Survey overview: Weighting • Each respondent represents themselves and others in the population • The sample weight WTS_M indicates the population represented by each respondent • Weights have been adjusted for non-response and calibrated to match population estimates: HR*sex*age group

  10. Survey overview - content • Three main types of content in survey • Core: all years, all respondents • Theme: certain years, all respondents • Optional: certain years, certain provinces/territories • Other content not available through DLI: • Buy-ins • Rapid responses • Sub-samples

  11. Survey overview – content plan

  12. CCHS Redesign of 2015 • Frame changes • Household survey frame for adults • CCB for youth 12-17 • Collection methods • More telephone interviews overall (incl. for all youth respondents) • Sample allocation more responsive to change • Territorial coverage only over 2-years

  13. CCHS - PUMF details • Previous one year PUMFs: • 2010 • 2012 • 2014 • Previous two year PUMFs: • Cycle 1.1 (2000/2001) • Cycle 2.1 (2002/2003) • Cycle 3.1 (2004/2005) • 2007/2008 • 2009/2010 • 2011/2012 • 2013/2014 • 2015/2016

  14. Included core content for CCHS 2015-2016 PUMF • Physical Activities for adults/youth • Primary Health Care Providers • Smoking • Maternal experiences • Administration • Age • Labour Force • Main occupation • Socio-demographics • Alcohol Use • Chronic Conditions • Contact with health professionals • Exposure to Second-hand Smoke • Flu Shots • Fruit and Vegetable Consumption • General Health • Height and Weight

  15. Included theme content for CCHS 2015-2016 PUMF • Mental health • Consultation about mental health • Suicidal thoughts and attempts* • Health conditions • Chronic conditions • Theme 1 • Health behaviours • Alcohol past week • Drug methods* • Sexual behaviours* • Patient experience • Insurance • Patient experience • Home care*

  16. Design for CCHS PUMF • 2015/16 PUMF contains 109,659 records • 1,199 variables • Geography variables • Province / territory of dwelling* • Health region of dwelling (grouped) • Canadian Active Living Environment (CANALE)

  17. Canadian Active Living Environnent (CANALE) • New variable for CCHS PUMF • Provides additional geospatial value to the file • Scores (1-5) each 2016 DA based on the active living environment (intersection/dwelling density, points of interest, and transit stops). • To link to CCHS, 2011 DAs from the file were linked with 2016 DAs in CANALE file. Multiple matches were dealt with random selection proportional to population size. • Included in pre-masking to prevent ungrouping of HRs

  18. CCHS PUMF – disclosure control • Geography / HR population size • Minimum population size of 70,000 per health region • 19 HRs grouped into 9 • 3 Territories not grouped this PUMF • Results in 98 Health Regions or HR groupings • Age of respondent • 5 year age groups 20-24 -> 75-79 • 12-14, 15-17, 18-19 • Supports research on Body Mass Index (BMI) and new physical activity content (PAA/PAY) • Other indirect identifiers grouped or masked to prevent disclosure

  19. CCHS 15-16 PUMF: Poisson bootstrap weights • Previous PUMFs did not include bootstrap weights • 2015-2016 PUMF includes Poisson bootstrap weights • Each weight for each replicate is generated independently • All bootstrap weights are strictly positive • The Poisson bootstrap does not pose confidentiality concerns

  20. PUMF Package • Data • Bootstrap weights • Documentation • User guides • CV tables • Data Dictionary • Derived Variables • Errata • Questionnaire • Beyond 2020

  21. 2021 CCHS Redesign Objectives • Transition to Electronic Questionnaires • Revisit content and develop a new content plan • Revisit the methodology • Increase administrative data holdings • Modernize with Statistics Canada • 2020 Pilot

  22. CCHS-Annual Contacts • Content manager: Anne-Marie Vinette • Anne-Marie.Vinette@canada.ca • Dissemination Manager: Shawn Brule • Shawn.Brule@canada.ca • Collection Manager: Bernard Paquet • Bernard.Paquet@canada.ca • Project Manager: Amanda Wright • Amanda.Wright@canada.ca • Redesign Manager: Ed Rama • Ed.Rama@canada.ca • Section Chief: José Gaudet • Jose.Gaudet@canada.ca

  23. THANK YOU! For more information, please visit www.statcan.gc.ca#StatCan100

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