[Status on maternal testing and detection of HIV infection among pregnant women in Liangshan Yi Autonomous Prefecture, Sichuan province, 2008-2016]

Objective: To understand the status of maternal testing, detection and trends of HIV infection among pregnant women in Liangshan Yi Autonomous Prefecture (Liangshan) of Sichuan province during 2008-2016. Methods: Data were collected from the monthly work report on maternal HIV testings and the case-reporting records of HIV-positive pregnant women, from the National Management Information System of China's Prevention of Mother-to-child transmission of HIV, syphilis, and HBV Program. Descriptive method was applied to show both the maternal HIV and predelivery HIV testing rates and maternal HIV positive rates as well as the distribution in different counties, between 2008 and 2016. Results: During 2008-2016, both maternal HIV test rates and predelivery maternal HIV testing increased from 40.7% (8 191/20 125) and 8.0% (1 607/20 125) to 95.7% (88 000/91 946) and 70.1% (64 421/91 946), respectively (trend χ(2)=94 497.28, P<0.001; trend χ(2)=90 655.03, P<0.001). A total of 3 271 HIV-positives were detected from 436 519 pregnant women, with the HIV positive rate as 0.75% (95%CI: 0.72%-0.77%). Among 3 271 HIV-positive pregnant women, 1 527 (46.7%) of them were tested at labor. The maternal HIV-positive rates at labor increased yearly (trend χ(2)=9.21, P=0.002). In 2016, the maternal HIV-positive rate at labor was 1.32% (95%CI: 1.18%-1.47%), which was higher than that (0.67%, 95%CI: 0.61%-0.73%) in the pregnant women who received HIV test predelivery (χ(2)=88.23, P<0.001). The maternal HIV- positive rates in Butuo, Zhaojue, Jinyang, Meigu, and Yuexi counties all appeared ≥1%, in 2016,respectively. Conclusions: The maternal HIV test rates increased in Liangshan during 2008-2016, but the maternal HIV test rates at labor were relatively high. The HIV prevalence among pregnant women in Liangshan was severe and late for pregnant women to receive testing.