CIHR Candrive Cohort Comparison with Canadian Household Population Holding Valid Driver’s Licenses Academic Article uri icon

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  • We investigated whether convenience sampling is a suitable method to generate a sample of older drivers representative of the older-Canadian driver population. Using equivalence testing, we compared a large convenience sample of older drivers (Candrive II prospective cohort study) to a similarly aged population of older Canadian drivers. The Candrive sample consists of 928 community-dwelling older drivers from seven metropolitan areas of Canada. The population data was obtained from the Canadian Community Health Survey - Healthy Aging (CCHS-HA), which is a representative sample of older Canadians. The data for drivers aged 70 and older were extracted from the CCHS-HA database, for a total of 3,899 older Canadian drivers. Two samples were demonstrated as equivalent on socio-demographic, health, and driving variables that we compared, but not on driving frequency. We conclude that convenience sampling used in the Candrive study created a fairly representative sample of Canadian older drivers, with a few exceptions.


  • Gagnon, Sylvain
  • Marshall, Shawn
  • Kadulina, Yara
  • Stinchcombe, Arne
  • Bédard, Michel
  • Gélinas, Isabelle
  • Man-Son-Hing, Malcolm
  • Mazer, Barbara
  • Naglie, Gary
  • Porter, Michelle M
  • Rapoport, Mark
  • Tuokko, Holly
  • Vrkljan, Brenda

publication date

  • June 2016