OCS by the numbers

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Crucial stats

Below is a curated list of basic OCS demographic data.

  • 6,891 patients ever enrolled (↑220 from 2014)
  • Over 44,823 person-years of follow up (↑2,120 from 2014)
  • 4,806 participants with questionnaire data (↑227 from 2014)
  • 3,748 participants under active follow-up as of 2015
  • Among those ≥1 questionnaire as of December 2015
    • 68% ≥ 3 questionnaires
    • Median number of questionnaires = 4
  • Of 5,380 people with HIV studied from 2001-2011, 87% received tests to measure the level of HIV in their blood – a sign that they are engaged in ongoing care.
  • While the proportion of people with HIV receiving care was stable from 2001-2011, use of HIV treatments rose by 10%, and the number of people with a suppressed viral load increased by 26%.
  • About 43% of people who attend OCS-affliated clinics participate. The study includes men and women of different ages,  sexual orientations and ethnicities.
  • Three main groups seem to be less likely to be in care and to be taking antiretroviral drugs:
    • Younger adults (under 35) were less likely to be in care and to be taking antiretroviral drugs. This trend has also been observed in other places.
    • People with a history of injection drug use were also less likely to be in care and on treatment. It is not clear whether this difference is due to ongoing drug use or other complicating factors such as poverty or mental health concerns.
    • Heterosexual men were less likely to attend HIV care regularly. Previous work done in Ontario suggests that these men may feel that HIV care and services are designed for women and gay men, and may be uncomfortable accessing care.
  • African, Caribbean and Black participants were slightly less likely to be taking antiretroviral drugs, although they were as engaged in care as other participants. Immigration status was not a barrier to care.