Overall

Data source: Ontario HIV Laboratory Cohort
 

Key points

  • Between 2000 and 2015, the total number of people with diagnosed HIV living in Ontario increased from 8,859 to 16,110. A combination of factors has likely contributed to this increase, including ongoing new HIV diagnoses each year and improved life expectancy of people living with HIV due to successful treatment regimens.
  • Cascade engagement among people with diagnosed HIV living in Ontario has improved over time. Between 2000 and 2015, the percent of people with diagnosed HIV who were virally suppressed doubled from 40.7% to 79.5%.
  • These improvements are likely due to a combination of factors, including the availability of ART regimens that are more effective and easier to take, changes to treatment guidelines to recommend earlier initiation of ART after diagnosis, and the success of care and treatment initiatives.

 

Figures

Figure 1 Number of people living with HIV in Ontario who were engaged in the cascade by indicator, 2000 to 2015

See Table 1 below for data


Figure 2 Percent of people with diagnosed HIV living in Ontario who were engaged in the cascade by indicator, 2000 to 2015

See Table 2 below for data


Figure 3 Number of people living with HIV in Ontario who were engaged in the cascade by indicator, 2015


Figure 4 Percent of people with diagnosed HIV living in Ontario who were engaged in the cascade by indicator, 2015


 

Tables

Table 1 Number of people living with HIV in Ontario who were engaged in the cascade by indicator (main estimates), 2000 to 2015
Table 2 Percent of people with diagnosed HIV living in Ontario who were engaged in the cascade by indicator (main estimates), 2000 to 2015

Definitions

Cascade indicator Definition (main)
Diagnosed Nominal HIV-positive diagnostic testor HIV viral load test, and not administratively lost to follow-up after 2 years
In care At least one VL test in a given year
On antiretroviral treatment Documented on ART, or ART status missing and suppressed, on last VL test in a given year
Virally suppressed VL less than 200 copies/mL on last VL test in a given year

 
 
Notes: Data provided by Public Health Ontario Laboratories. ART status documented on viral load test requisition by ordering provider and missing for 17-20% of requisitions. Tables and Figures display main estimates only. A range of plausible values, based on alternativee definitions, are available upon request. VL=viral load. ART=antiretroviral treatment.