Province | Year | Population | Sample size | Proportion injecting | Source |
---|---|---|---|---|---|
Hanoi HCMC | 2000 | KSW | 943 | 4.3% – 5.6% (last six months) | BSS [16] |
Hanoi HCMC | 2000 | SSW | 723 | 15.6% – 21.5% (last six months) | BSS [16] |
Twelve provinces | 2002 | KSW | 2,968 | 0.8% (ever) | [13, 14] |
Twelve provinces | 2002 | SSW | 1,185 | 9.1% (ever) | [13, 14] |