1. NATIONAL EPIDEMIOLOGY CENTER POPULATION SIZE ESTIMATES 10 December 2009 Heritage Hotel Manila NATIONAL EPIDEMIOLOGY CENTER

2. MSM EstimatesSource of the Estimated Number Estimate 1*7% of total adult male population Estimate 2*6% of total adult male population Estimate 3*5% of total adult male population Estimate 4*4% of total adult male population Estimate 5*3% of total adult male population Estimate 6*2% of total adult male population Estimate 7*1% of total adult male population Estimate 8STIR UP Vulnerability Index *Estimate can be applied for the rest of the country

3. NATIONAL EPIDEMIOLOGY CENTER Registered FSW EstimatesSource of the Estimated Number Estimate 1Actual reported number of RFSW at the SHC in 2009 Estimate 2STIR UP: Vulnerability Index Estimate 3*2007 Estimates: 0.3% of total adult female population Estimate 4a*Asian Models: High estimate 2.6% of total adult female population Estimate 4b*Asian Models: Low estimate 0.2% of total adult female population Estimate 5a*Using the proportion of RFSW (as reported by SHC) in total female population: Median Proportion – 1.07% Estimate 5b*Using the proportion of RFSW (as reported by SHC) in total female population: Low Proportion – 0.12% *Estimate can be applied for the rest of the country

4. NATIONAL EPIDEMIOLOGY CENTER Freelance FSW EstimatesSource of the Estimated Number Estimate 1IHBSS Multiplier: Visited the SHC in the past year Estimate 2STIR UP: Low FSW Estimate Estimate 3STIR UP: Vulnerability Index Estimate 4a*2007 Estimates: High Estimate 0.5% of total adult female population Estimate 4b*2007 Estimates: Low Estimate 0.3% of total adult female population Estimate 5a*Asian Models: High estimate 2.6% of total adult female population Estimate 5b*Asian Models: Low estimate 0.2% of total adult female population Estimate 6a*Using the proportion of Freelance FSW in total female population: Median proportion – 0.5% Estimate 6b*Using the proportion of Freelance FSW in total female population: Low proportion – 0.023% *Estimate can be applied for the rest of the country

5. NATIONAL EPIDEMIOLOGY CENTER Total FSW EstimatesSource of the Estimated Number Estimate 1Total Registered + Total Freelance Sex Workers Estimate 2STIR UP: High FSW Estimate Estimate 3STIR UP: Vulnerability Index Estimate 4a*2007 Estimates: High Estimate 0.9% of total adult female population Estimate 4b*2007 Estimates: Low Estimate 0.6% of total adult female population Estimate 5a*Asian Models: High estimate 2.6% of total adult female population Estimate 5b*Asian Models: Low estimate 0.2% of total adult female population *Estimate can be applied for the rest of the country

6. NATIONAL EPIDEMIOLOGY CENTER Clients of FSW EstimatesSource of the Estimated Number Estimate 1IHBSS: Average # of clients per month of RFLW x estimated total # of RFSW + Average # of clients per month of FLSW x estimated total # of FLSW Estimate 2a*2007 Estimates: High Estimate 7% of total adult male population Estimate 2b*2007 Estimates: Average Estimate 4.5% of total adult male population Estimate 2c*2007 Estimates: Low Estimate 2% of total adult female population Estimate 3a*Total # of clients in IHBSS sites + 2007 High estimate (7%) Estimate 3b*Total # of clients in IHBSS sites + 2007 Average estimate (4.5%) Estimate 3c*Total # of clients in IHBSS sites + 2007 Low estimate (2%) *Estimate can be applied for the rest of the country

7. NATIONAL EPIDEMIOLOGY CENTER Injecting Drug Users EstimatesSource of the Estimated Number Estimate 1IHBSS: % ever injected drugs among RegFSW x total estimated # of RFSW + % ever injected drugs among FreelanceFSW x total est # of FLSW + % ever injected drugs among MSM x total est # of MSM + Estimated number of IDU in Cebu, GenSan & Zamboanga Estimate 2STIR UP: Vulnerability Index Estimate 3a*2007 Estimates: High Estimate 0.05% of total adult population Estimate 3b*2007 Estimates: Low Estimate 0.02% of total adult population Estimate 4a*Using the proportion of Estimate 3a or 3b in IHBSS sites: Median proportion – 0.042% Estimate 4b*Using the proportion of Estimate 3a or 3b in IHBSS sites: Low proportion – 0.0178% *Estimate can be applied for the rest of the country