Table 1.

Number of national HIV sentinel surveillance sites that contributed data to China’s national HIV estimates, 2003–09

Population	2003	2005	2007	2009
Female SWs	32	49	229	367
DUs/IDUs	36	62	229	243
MSM	1	1	11	25
STD outpatients	58	90	267	231
Pregnant women	13	26	75	66
Truck drivers	8	20	43	46
Othera	–	–	75	51
Total	148	248	929	1029

^aOther includes students and tuberculosis patients.

SWs: sex workers, STD: sexually transmitted disease.