Samuel N M, Srijayanth P, Dharmarajan S, Bethel J, Van Hook H, Jacob M, Junankar V, Chamberlin J, Collins D, Read J S
The Tamil Nadu Dr M.G.R. Medical University, Chennai, India.
Indian J Med Res. 2007 Jan;125(1):49-64.
BACKGROUND & OBJECTIVE: Since the first report of HIV-1 infection in Tamil Nadu, India, HIV-1 seroprevalence in India has increased steadily. Though interventions to prevent mother-to-child transmission (MTCT) are available, their implementation is a significant challenge. Therefore, among pregnant women in rural Tamil Nadu, the acceptance of education regarding HIV-1 infection and transmission and, among a systematic sample, knowledge, attitudes, and beliefs; the acceptance of HIV-1 voluntary counselling and testing (VCT); and the seroprevalence of HIV-1 infection as well as risk factors for seropositivity were assessed.
Pregnant women registered in the antenatal clinics at Namakkal District Hospital and Rasipuram Government Hospital, Tamil Nadu, India, were offered an educational session regarding HIV-1 infection and transmission. HIV-1 VCT, with informed consent, was offered. Positive results with HIV-1 rapid testing were confirmed with HIV-1 ELISA and Western blot assays. With informed consent, a systematic sample of the study population was asked to participate in pre- and posteducation assessments. Chi-square tests were used to evaluate HIV-1 risk factors.
The educational session as well as VCT were well accepted by rural, pregnant, HIV-1- infected women. Of 3722 women registered for antenatal care at the two hospitals over a one year period, 3691 (99.2%) agreed to participate in the educational session and 3715 (99.8%) had VCT [74 had confirmed HIV-1 infection [seroprevalence: 2.0% (95% confidence interval (95%CI): 1.6%, 2.5%)]]. Of 759 eligible women, a systematic sample of 757 (99.7%) women participated in the pre- and post-education assessments. Although baseline knowledge regarding HIV-1 was limited, a highly significant improvement in such knowledge was observed (P<0.0001 for all comparisons of changes in knowledge, attitudes, and beliefs measured before and immediately after the educational session). The median per cent of correct responses increased from 26.4 per cent before the educational session to 93.8 per cent afterwards. Women whose husbands were long distance truck drivers were at increased risk of HIV-1 infection. Other factors associated with HIV-1 infection were clinical site (Namakkal District Hospital), a smaller number of persons in the household, being unmarried, and a history of previous surgeries.
INTERPRETATION & CONCLUSION: The acceptability of education and of VCT among antenatal clinic attendees in this study was encouraging. However, the relatively high seroprevalence highlights the spread of HIV-1 from high risk groups to the general population and emphasizes the need for primary prevention of HIV-1 infection among adolescent girls and women of reproductive age in India.
自印度泰米尔纳德邦首次报告HIV-1感染以来,印度的HIV-1血清阳性率稳步上升。尽管有预防母婴传播(MTCT)的干预措施,但这些措施的实施面临重大挑战。因此,在泰米尔纳德邦农村的孕妇中,评估了她们对HIV-1感染与传播相关教育的接受程度,以及在一个系统样本中她们的知识、态度和信念;HIV-1自愿咨询与检测(VCT)的接受情况;HIV-1感染的血清阳性率以及血清阳性的危险因素。
为在印度泰米尔纳德邦纳马卡尔区医院和拉西普拉姆政府医院产前诊所登记的孕妇提供了关于HIV-1感染与传播的教育课程。在获得知情同意后,提供HIV-1 VCT。HIV-1快速检测的阳性结果用HIV-1 ELISA和蛋白质印迹法进行确认。在获得知情同意后,要求从研究人群中抽取的一个系统样本参与教育前后的评估。采用卡方检验评估HIV-1危险因素。
农村HIV-1感染孕妇对教育课程和VCT的接受度良好。在一年时间里,在两家医院登记接受产前护理的3722名妇女中,3691名(99.2%)同意参加教育课程,3715名(99.8%)接受了VCT[74名确诊为HIV-1感染,血清阳性率为2.0%(95%置信区间(95%CI):1.6%,2.5%)]。在759名符合条件的妇女中,757名(99.7%)系统样本妇女参与了教育前后的评估。尽管关于HIV-1的基线知识有限,但观察到此类知识有极显著的改善(教育课程前后所测量的知识、态度和信念变化的所有比较中,P<0.0001)。正确回答的中位数百分比从教育课程前的26.4%增至之后的93.8%。丈夫是长途卡车司机的妇女感染HIV-1的风险增加。与HIV-1感染相关的其他因素包括临床地点(纳马卡尔区医院)、家庭人口较少、未婚以及既往手术史。
本研究中产前诊所就诊者对教育和VCT的接受度令人鼓舞。然而,相对较高的血清阳性率凸显了HIV-1从高危人群向普通人群的传播,并强调了在印度对青春期女孩和育龄妇女进行HIV-1感染一级预防的必要性。