Abstract: Objective  To analyze the results of HIV screening among tuberculosis (TB) patients in national key counties (districts) for Mtb/HIV co-infection control and prevention, and to provide evidence for improving HIV screening strategy among TB patients. Methods  The results of 48 848/98 739 screened patients of 294 national Mtb/HIV co-infection key counties (districts) in 2010/2012 were analyzed, and the positive rate was compared with that of National HIV Infection Survey among TB patients and of 2540 non-priority counties. Results  In 2010, the average HIV screening rate in 294 key counties (districts) was 43.32% (48 848/112 757), the overall HIV detection rate in key counties and non-priority counties were 2.71% (1324/48 848) and 0.41% (185/45 274) respectively, and the corresponding rates were 86.63% (98 739/113 978), 1.63% (1605/98 739) and 0.39% (628/159 586) in 2012. The HIV detection rates of key counties were 2.71% (1324/48 848) and 1.63% (1605/98 739) respectively in 2010 and 2012, while those of non-priority counties were 0.41% (185/45 274) and 0.39% (628/159 586). The differences of HIV detecting rate were significant between key counties and non-priority counties in 2010 and 2012 (χ²=789.17/1080.37, P<0.0001). The numbers of Mtb/HIV co-infection cases detected in 294 key counties in 2010 and 2012 were 1324 and 1605 respectively, which accounted for 50.40% (1324/2627) and 63.64% (1605/2522) of the estimated number of national Mtb/HIV patients. Conclusion  The number of screened cases and Mtb/HIV patients detected in key counties in 2012 has increased significantly than in 2010, and the implementation effect of the strategy of HIV screening among TB patients in Mtb/HIV co-infection key counties is good.

Key words: Tuberculosis/prevention &, control, HIV infections, Superinfection, HIV, Registries, Evaluation studies