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Statistics on Windsor-Essex County (WEC) teen sexual behaviour and birth control use are presented below.

Table1: Ever had Sexual Intercourse, Ages 15 to 18, WEC, 2007-2012
  % 95% CI
Yes have had intercourse 24.6 18.3-32.2
No have not 65.0 57.4-71.8
Don't know, refused, not stated 10.4  


Table 2: Age at First Intercourse for Teens who Have had Sexual Intercourse, Ages 15 to 18, WEC, 2007-2012
Age Percent of Teens 95% CI
Age 14 or under NR NR
Age 15 23.1 E 12.0-39.9
Age 16 46.2 E 29.8-63.4
Age 17 22.3 E 11.5-38.8
Age 18 NR NR

E Interpret with caution due to high sampling variability.
NR = Not reportable due to high sampling variability or low cell counts.

Number of Sexual Intercourse Partners

  • Of those teens who disclosed how many sexual partners they have had, 79% have had one sexual partner with whom they had sexual intercourse (95% CI = 65.1-88.8).

Birth Control

  • 72.6% of teens (95% CI = 53.9-85.8) who have had sex reported that they used a condom the last time they had sexual intercourse.
  • 83.9% of teens (95% CI = 69.7-92.1) who have had sex report that they usually use birth control.
  • No teens reported that they used no birth control the last time they had sexual intercourse.
  • When asked: “What kind of birth control did you and your partner usually use?” Responses from teens who have had intercourse were:
    • 67.0 % reported that they usually use condoms (95% CI = 43.8-84.1).
    • 65.8 % reported that they usually use the pill (95% CI = 43.3-82.9) 

Note: Data on other forms of birth control collected by the Canadian Community Health Survey was not releasable due to small cell counts. The birth control options that are inquired about in the CCHS are: condoms, birth control pills, birth control injections, diaphragm, and spermicide. 

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. 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.
  4. Due to the large 95% confidence intervals for some values, please interpret estimates with caution. 
  5. Not applicable, Not Stated, and Don’t Know responses were excluded from all analyses, excluding those presented in Table 1.
  6. The geographical area of Windsor-Essex County represents the population of the entire County of Essex and includes all municipalities within the county.

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