| Response | Baseline | Survey 2004* | Survey 2008 | |||
|---|---|---|---|---|---|---|
| Fully enrolled† | Partially enrolled‡ | Returned | No response | Returned | No response | |
| Total n | (n = 26 761), % | (n = 4311), % | (n = 9660), % | (n = 1971), % | (n = 20 707), % | (n = 8181), % |
| Sex§ ¶ | ||||||
| Men | 37.7 | 47.3 | 39.8 | 48.7 | 38.9 | 39.6 |
| Women | 62.4 | 52.7 | 60.2 | 51.3 | 61.1 | 60.4 |
| Age (yr)§ ¶ | ||||||
| 35-44 | 31.1 | 41.3 | 35.1 | 44.4 | 32.3 | 32.3 |
| 45-54 | 35.3 | 34.9 | 34.7 | 36.1 | 35.5 | 35.3 |
| 55-64 | 24.8 | 18.5 | 22.0 | 15.1 | 24.0 | 24.1 |
| 65-69 | 8.8 | 5.3 | 8.2 | 4.4 | 8.2 | 8.4 |
| Missing | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Education§ | ||||||
| High school not completed | 9.6 | 11.1 | 12.0 | 13.7 | 10.0 | 9.9 |
| High school completed | 18.5 | 18.2 | 20.2 | 21.2 | 18.5 | 18.7 |
| Some post-secondary** | 20.6 | 22.9 | 21.2 | 22.9 | 20.7 | 21.2 |
| Post-secondary completed†† | 51.4 | 47.7 | 46.6 | 42.2 | 50.8 | 50.2 |
| Missing | 0.0 | 0.2 | 0.0 | 0.1 | 0.0 | 0.0 |
| Marital status§ ¶ | ||||||
| Married/living with a partner | 78.8 | 75.2 | 80.5 | 76.1 | 78.4 | 78.1 |
| Single (never married) | 5.8 | 6.8 | 5.2 | 6.9 | 6.0 | 5.4 |
| Divorced/separated/widowed | 15.5 | 17.7 | 14.3 | 17.0 | 15.6 | 16.4 |
| Missing | 0.0 | 0.2 | 0.0 | 0.1 | 0.0 | 0.0 |
| Annual household income, $ § | ||||||
| < 30 000 | 13.0 | 14.9 | 15.7 | 17.6 | 13.2 | 13.8 |
| 30 000-59 999 | 27.0 | 26.4 | 31.4 | 32.3 | 26.8 | 28.2 |
| 60 000-89 999 | 25.3 | 24.7 | 26.6 | 27.2 | 25.3 | 25.4 |
| ≥ 90 000 | 32.4 | 31.0 | 23.9 | 20.4 | 32.3 | 30.1 |
| Missing | 2.4 | 3.0 | 2.4 | 2.6 | 2.4 | 2.6 |
| Geographic location‡‡ | ||||||
| Urban | 76.5 | 75.2 | 70.7 | 71.6 | 76.2 | 76.0 |
| Rural | 23.5 | 24.8 | 29.3 | 28.4 | 23.8 | 24.0 |
| Missing | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Working status§ ¶ | ||||||
| Full time | 55.8 | 64.2 | 54.5 | 63.8 | 57.0 | 57.0 |
| Part time | 16.8 | 13.3 | 17.1 | 12.6 | 16.6 | 15.8 |
| Homemaker | 1.9 | 3.0 | 2.0 | 2.9 | 1.9 | 2.2 |
| Unemployed | 8.3 | 6.8 | 9.4 | 7.8 | 8.1 | 8.2 |
| Student | 0.6 | 0.8 | 0.4 | 0.8 | 0.6 | 0.6 |
| Retired | 13.4 | 7.3 | 13.2 | 6.5 | 12.4 | 12.8 |
| Other | 3.2 | 4.5 | 3.3 | 5.5 | 3.4 | 3.4 |
| Missing | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.1 |
| Body mass index§ ¶ §§ | ||||||
| < 18.5 | 0.7 | 0.9 | 0.6 | 0.8 | 0.7 | 0.6 |
| 18.5-24.9 | 33.3 | 30.1 | 33.0 | 29.3 | 32.7 | 33.0 |
| 25.0-29.9 | 39.2 | 37.1 | 40.0 | 38.0 | 39.3 | 38.3 |
| ≥ 30.0 | 26.5 | 30.0 | 26.2 | 30.7 | 26.9 | 27.4 |
| Missing | 0.3 | 1.8 | 0.3 | 1.3 | 0.4 | 0.7 |
| Smoking status§¶ | ||||||
| Current daily smoker | 14.5 | 21.9 | 16.3 | 27.9 | 15.4 | 16.1 |
| Current occasional smoker | 3.1 | 3.4 | 3.4 | 4.0 | 3.1 | 3.3 |
| Former smoker | 37.6 | 34.3 | 37.6 | 33.2 | 37.1 | 37.8 |
| Never smoker | 44.8 | 40.0 | 42.7 | 35.0 | 44.3 | 42.8 |
| Missing | 0.1 | 0.4 | 0.0 | 0.1 | 0.1 | 0.1 |
| Family history of cancer§ ¶ ¶¶ | ||||||
| Yes | 53.2 | 48.6 | 51.2 | 46.2 | 53.1 | 51.4 |
| No | 46.8 | 51.5 | 48.8 | 53.8 | 46.9 | 48.6 |
| Missing | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Family history of chronic conditions*** | ||||||
| Diabetes | 27.8 | 28.5 | 26.4 | 29.5 | 27.8 | 27.8 |
| Heart attack§ | 22.1 | 19.8 | 23.0 | 20.5 | 21.8 | 22.0 |
| Stroke | 7.7 | 6.5 | 7.4 | 6.5 | 7.7 | 7.3 |
*Survey 2004 and Survey 2004 Express combined.
†Fully enrolled = participants who completed Health and Lifestyle Questionnaire, Canadian Diet History Questionnaire I and Past Year Total Physical Activity Questionnaire.
‡Partially enrolled = participants who completed Health and Lifestyle Questionnaire only, and did not return the Canadian Diet History Questionnaire I or Past Year Total Physical Activity Questionnaire.
§p < 0.001 fully enrolled vs. partially enrolled (χ2 test).
¶p < 0.001 Survey 2004 returned vs. Survey 2004 no response (χ2 test).
**Some post-secondary includes combined responses to some technical school/college training completed, completed technical school/college training, some part of university degree completed.
††Post-secondary completed includes combined responses to completed university degree, some part of post-graduate university degree completed, completed university postgraduate degree.
‡‡Geographical location defined according to postal code, where "0" as the second digit indicates rural residence.
§§Body mass index derived from participant self-reported height and weight.
¶¶Family history of cancer includes a self-reported cancer diagnosis in a first-degree relative (mother, father, brother, sister, son, daughter) of breast, ovarian, rectal, colon, prostate or other cancer.
***Family history of chronic conditions includes a self-reported diagnosis in a first-degree relative (mother, father, brother, sister, son, daughter) of diabetes, heart attack or stroke.