HIV in British Columbia:

Recent Trends

Presentation for the Pacific AIDS Network

February 25, 2009

Stephen SmithManager, Blood-borne Pathogens

HIV Testing and Newly Identified Infections (Source: BCCDC HIV Surveillance)

What we know from HIV surveillance data:• How many people tested positive for HIV within BC; • In most cases, what health region most of these people live in;• In most cases, gender, age range, ethno-cultural background;• In most cases, how they believe they became infected.

What we don’t know from HIV surveillance data:• Which are incident infections and which are prevalent infections;• How many undiagnosed infections there are in BC;• How many people are living with HIV in BC at present.

Number of HIV Tests Performed in BC, 2001-2007

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

180,000

200,000

2001 2002 2003 2004 2005 2006 2007

# o

f H

IV T

ests

Per

form

ed

Number of HIV Tests Performed in BC, 2001-2007Proportion Attributable to Prenatal Screening

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

180,000

200,000

2001 2002 2003 2004 2005 2006 2007

# of

HIV

Tes

ts P

erfo

rmed

Rate of Persons Testing Newly Positive for HIV in BC and Canada, 2001-2007

0.0

2.0

4.0

6.0

8.0

10.0

12.0

Ra

te p

er

10

0,0

00

po

pu

lati

on

BC Rate 10.3 10.2 9.8 10.5 9.4 8.3 9.1

Canadian Rate 7.0 8.0 7.9 7.9 7.8 7.8 7.5

2001 2002 2003 2004 2005 2006 2007

VCH

53%

FHA

21%

VIHA

14%

IHA

5%

NHA

7%

Percentage of Newly Reported HIV Infections by Health Region - 2007

Number of People Testing Newly Positive for HIV by Health Authority, 2001-2007

0

50

100

150

200

250

300

2001 2002 2003 2004 2005 2006 2007

# of

Cas

es

FHA IHA NHA VCH VIHA

<200% 20-29

18%

30-3934%

40-4930%

50+18%

<201%

20-2944%

30-3924%

40-4917%

50+14%

Persons Testing Newly Positive for HIV in BC by Age and Gender, 2007

Females – 55% >29 Males – 82% >29

Caucasian68%

Aboriginal15%

Asian8%

Black3%

Hispanic5%

Other1%

Newly Reported HIV Infections by Ethno-cultural Categories, 2007

Newly Reported Infections by Ethno-cultural Categories and Gender, 2007

Caucasian45%

Aboriginal41%

Asian8%

Black5%

Other1%

Hispanic0%

Caucasian74%

Aboriginal8%

Asian9%

Black2%

Other1%

Hispanic6%

Females Males

HIV Treatment Data (Source: BC HIV Drug Treatment Program – BCCfE)

What we know from treatment data:• The number of people actively on HAART in BC and accessing treatment

through the BC HIV DTP;• The number of people who are DTP participants but not actively on

HAART;• The number of people taking various combinations of ARVs;• Median viral load counts for DTP participants;• Median CD4 counts for DTP participants;• Some characteristics such as gender, ethno-cultural background, etc.;• Some level of access to care.

What we don’t know from HIV treatment data:• Who may need treatment but not have access to it.

Number of Drug Treatment Program Participants on ARV Treatment by Health Authority of Residence, 2003-2007

0

500

1000

1500

2000

2500

3000

VCH VIHA FHA NHA IHA

2003 2004 2005 2006 2007

Number of Aboriginal HIV Drug Treatment Program Participants on ARV Treatment by Health Authority of Residence, 2006 & 2007

0

20

40

60

80

100

120

140

160

VCH VIHA FHA NHA IHA

2006 2007

Males

Number of Aboriginal HIV Drug Treatment Program Participants on ARV Treatment by Health Authority of Residence, 2006 & 2007

Females

0

5

10

15

20

25

30

35

VCH VIHA FHA NHA IHA

2006 2007