By sex

Data source: Ontario HIV Laboratory Cohort
 

Key points

  • The percent of people with diagnosed HIV living in Ontario who were virally suppressed doubled between 2000 and 2015 for both sexes. The percent suppressed was consistent slightly lower for females. In 2015, the percent of people with diagnosed HIV who were suppressed was 80.4% for males and 76.5% for females.
  • Time from HIV diagnosis to viral suppression among people newly diagnosed with HIV in Ontario also improved over time for both males and females. In 2015, the percent of newly diagnosed individuals who achieved viral suppression within six months of diagnosis was 42.9% for males and 36.5% for females.

 

Figures

Figure 1 Percent of people with diagnosed HIV living in Ontario who were virally suppressed by sex, 2000 to 2015


Trends: Between 2000 and 2015, the percent of people with diagnosed HIV who were virally suppressed increased from 41.6% to 80.4% for males and 36.3% to 76.5% for females. The percent suppressed was consistently slightly lower for females. See Table 1 below for data and definitions.


Figure 2 Percent of people with diagnosed HIV living in Ontario on ART who were virally suppressed by sex, 2000 to 2015


Trends: Between 2000 and 2015, the percent of people on ART who were virally suppressed increased from 63.3% to 94.7% for males and 62.3% to 93.4% for females. See Table 2 below for data and definitions.


Figure 3 Percent of people newly diagnosed with HIV in Ontario who achieved viral suppression within six months of diagnosis by sex, 2000 to 2014


Trends: The percent of newly diagnosed people who were suppressed within six months of diagnosis was relatively steady at approximately 20% for both sexes between 2000 and 2007, and then it increased to 42.9% for males and 36.5% to females by 2014. See Table 3 below for data and definitions.
 

Tables and definitions

Table 1 Number and percent of people with diagnosed HIV living in Ontario who were virally suppressed by sex, 2000 to 2015


Estimate of percent virally suppressed “Virally suppressed” definition (numerator) “Diagnosed” definition (denominator)
Main Less than 200 copies/ml on last viral load test Nominal HIV-positive diagnostic test or HIV viral load test, and not administratively lost to follow-up after 2 years

Table 2 Number and percent of people with diagnosed HIV living in Ontario on ART who were virally suppressed by sex, 2000 to 2015


Estimate of percent virally suppressed  “Virally suppressed” definition (numerator) “on ART” definition (denominator)
Main Viral load less than 200 copies per ml, and known on ART or ART status missing, on last VL Known on ART, or ART status missing, on last viral load test

Table 3 Number and percent of people newly diagnosed with HIV in Ontario who achieved viral suppression within six months of diagnosis by sex, 2000 to 2014


Estimate of percent achieving viral suppression within six months “Virally suppressed within six months” definition (numerator) “Newly diagnosed” definition (denominator)
Main Viral load less than 200 copies per ml within six months of HIV diagnosis Nominal HIV-positive diagnostic test and no evidence of previous diagnosis (i.e. no detectable viral load test or CD4 count before diagnosis date, and first VL after diagnosis not virally suppressed)

 
Notes: Data provided by Public Health Ontario Laboratories. ART status documented on VL test requisition by ordering provider and missing for 17-20% of requisitions (Figure 2 and Table 2). The year 2015 was removed as some individuals diagnosed in that year would not have had time to reach viral suppression (Figure 3 and Table 3). Individuals missing information on sex were excluded (approximately 0.4%). Tables and Figures display main estimates only. A range of plausible values, calculated using alternative definitions, are available upon request.