Main Page Content

Self-reported high blood pressure rates for the Windsor-Essex County area are presented below. Rates are presented by age and sex. Relationships between rates and various social variables were also investigated. 

Table 1: Percentage of Individuals Reporting High Blood Pressure by Year, Ages 12 and Older
  2007 2008 2009 2010 2011 2012
Percent 15.6 19.4 17.0 19.3 19.0 19.0
95% CI 12.7-19.0 16.1-23.3 13.9-20.6 15.0-24.5 14.9-23.8 15.4-23.2

There are no significant differences in rates of reported high blood pressure by year. 

Table 2: Percentage of Individuals Reporting High Blood Pressure by Age and Sex, 2007-2012
  Male
Percent (95% CI)
Female
Percent (95% CI)
Total
Both Sexes
Age 12 to 19 NR NR NR
Age 20 to 44 5.6 E (3.7-8.4) 4.3 E (2.4-7.7) 5.0 E (3.6-6.9)
Age 45 to 64 26.6 (21.8-31.9) 27.4 (21.7-33.8)  27.0 (23.1-31.2)
Age 65 and Over 45.3 (38.3-52.6) 50.8 (46.0-55.6) 48.4 (44.0-52.7)
Total All Ages 17.5 (15.6-19.5) 18.9 (16.7-21.3) 18.2 (16.8-19.7)

E Interpret with caution due to high sampling variability. 
NR = not reportable due to high sampling variability.

There are significant differences in high blood pressure rates based on age, with the percentage of people reporting they have high blood pressure increasing as age categories increase for both men and women. There are no significant differences in rates between men and women. 

Table 3: Percentage of Individuals Aged 45 to 64 Reporting High Blood Pressure by Income Quintile, 2007-2012
  Quintile 1
Lowest Income
Quintile 2 Quintile 3 Quintile 4 Quintile 5
Highest Income
Percent (%) 24.2 E 26.8 E 33.0 28.2 E 23.2
95% CI 16.0-34.7 18.2-37.5 25.0-42.3 19.6-38.6 16.6-31.4

E Interpret with caution due to high sampling variability. 

Table 4: Percentage of Individuals Aged 65 and Above Reporting High Blood Pressure by Income Quintile, 2007-2012
  Quintile 1
Lowest Income
Quintile 2 Quintile 3 Quintile 4 Quintile 5
Highest Income
Percent (%) 51.9 52.3 42.8 50.5 36.8
95% CI 43.1-60.5 45.6-58.9 33.4-52.7 36.2-64.7 26.3-48.9

To investigate differences in rates by income, values for those aged 45 to 64 and then also for those aged 65 and above were computed (see Tables 3 and 4 above). Rates were not found to differ significantly by income for those aged 45 to 64. At first glance, while rates do appear to differ based on income for those aged 65 and above, because of the large confidence intervals for these values rates cannot be said to be significantly different. When results are age standardized and calculated for all individuals aged 12 and above, there are no significant differences based on income.

Table 5: Percentage of Individuals Reporting High Blood Pressure by Education Level, Ages 12 and Older, 2007-2012
  Less Than
Secondary School
Secondary
School Graduate
Some-Post 
Secondary
Post-Secondary
Graduate
Percent (%) 20.1 19.5 7.2 E 18.7
95% CI 17.1-23.4 16.2-23.3 3.9-12.8 16.4-21.3

E Interpret with caution due to high variability. 

There appears to be a difference in high blood pressure rates between those who had some post-secondary education and all other education groups. However, given the pattern of results, this difference may be related to the caution for this value due to high sampling variability and may not demonstrate a true difference. 

Table 6: Percentage of Individuals Reporting High Blood Pressure by Minority Status, Ages 12 and Older, 2007-2012
  White Minority
Percent (%) 18.6 14.7
95% CI 17.0-20.3 10.8-19.7

There is no significant difference in high blood pressure status based on ethnic minority status. When results are age standardized there are still no significant differences found.

Table 7: Percentage of Individuals Reporting High Blood Pressure by Immigration Status, Ages 12 and Older, 2007-2012
  Born in Canada Immigrant
Percent (%) 17.1 21.7
95% CI 15.6-18.7 18.4-25.3

There is also no significant difference in blood pressure rates based on whether one was born in Canada or immigrated to Canada.  When results are age standardized there are still no significant differences found.

Data Notes

  1. Data Source: Canadian Community Health Survey, [2007,2008,2009,2010,2011,2012], Share File, Ontario Ministry of Health and Long Term Care.
  2. The Canadian Community Health Survey (CCHS) collects data through participant self-report. Data collected through self-report can be biased due to inaccurate memory or because of social desirability. Social desirability happens when individuals answer questions in a manner that they think will be viewed favourably, and is more likely to occur when individuals are answering sensitive questions.
  3. Not Stated and Don’t Know responses were excluded from analysis.
  4. 95% CI = 95% confidence interval. The 95% confidence interval provides a range within which we are 95% confident that the true population proportion (%) falls. If a stated result percentage is 18% with a 95% CI of 15.0-21.0%, we can be 95% confident that the true percentage lies within the range of 15.0% to 21.0%. The wider the confidence interval, the more variability there is, and the less precise the estimate.
  5. Significant differences were determined based on non-overlapping confidence intervals.
  6. Understanding income quintiles used in this report: The Canadian Community Health Survey contains a variable that groups Windsor-Essex survey respondents into one of 10 income deciles. Each decile contains 10% of the sample population. So that the lowest or first decile contains the 10% of the population that has the lowest household income, and the highest or 10th decile contains the 10% of the sample population that has the highest household income. The calculation takes into account reported household income, low-income cut-off values, household size, and community size. For the purposes of this report, deciles were used to create quintiles for ease of analysis and interpretation (quintiles are fifths, and so each quintile contains 20% of the sample population). The lowest two deciles were combined to make the lowest quintile, the third and fourth deciles were combined to create the second lowest quintile, and so forth, with the two highest income deciles being combined to make the highest income quintile.
  7. A white ethnic background was defined as an individual who reported that their ethnicity was white. All other ethnicities were coded as minority.
  8. Immigrant was defined as someone who had ever immigrated to Canada.
  9. The geographical area of Windsor-Essex County represents the population of the entire county of Essex and includes all municipalities within the county.
  10. Age standardized statistics available upon request.