Does nonlocal women's attendance at antenatal clinics distort HIV prevalence surveillance estimates in pregnant women in Zimbabwe?
| Autor: | Katherine C. Wilson, Mutsa Mhangara, Simon Gregson, Jeffrey W. Eaton, Timothy B. Hallett, Janet Dzangare, Owen Mugurungi |
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| Přispěvatelé: | Medical Research Council (MRC), UNAIDS, National Institutes of Health |
| Rok vydání: | 2017 |
| Předmět: |
Pediatrics
HIV Infections 0302 clinical medicine Pregnancy hemic and lymphatic diseases Epidemiology Immunology and Allergy Medicine 030212 general & internal medicine Pregnancy Complications Infectious POPULATION reproductive and urinary physiology education.field_of_study 1. No poverty Attendance Prenatal Care 11 Medical And Health Sciences Middle Aged Hiv prevalence female genital diseases and pregnancy complications 3. Good health Infectious Diseases Epidemiological Monitoring Female 0305 other medical science Life Sciences & Biomedicine HIV surveillance Zimbabwe Adult medicine.medical_specialty Adolescent participation bias prevalence Immunology Population READY Developing country Article 17 Psychology And Cognitive Sciences Young Adult 03 medical and health sciences Virology Environmental health FERTILITY Humans education Antenatal clinics Science & Technology 030505 public health business.industry Public health 06 Biological Sciences PREVENTION TRENDS Rural area business TO-CHILD TRANSMISSION antenatal clinic bias |
| Zdroj: | AIDS (London, England) S102 S95 |
| ISSN: | 0269-9370 |
| Popis: | Objective: The objective was to assess whether HIV prevalence measured among women attending antenatal clinics (ANCs) are representative of prevalence in the local area, or whether estimates may be biased by some women's choice to attend ANCs away from their residential location. We tested the hypothesis that HIV prevalence in towns and periurban areas is underestimated in ANC sentinel surveillance data in Zimbabwe. Methods: National unlinked anonymous HIV surveillance was conducted at 19 ANCs in Zimbabwe in 2000, 2001, 2002, 2004, 2006, 2009, and 2012. This data was used to compare HIV prevalence and nonlocal attendance levels at ANCs at city, town, periurban, and rural clinics in aggregate and also for individual ANCs. Results: In 2000, HIV prevalence at town ANCs (36.6%, 95% CI 34.4–38.9%) slightly underestimated prevalence among urban women attending these clinics (40.7%, 95% CI 37.6–43.9%). However, there was no distortion in HIV prevalence at either the aggregate clinic location or at individual clinics in more recent surveillance rounds. HIV prevalence was consistently higher in towns and periurban areas than in rural areas. Nonlocal attendance was high at town (26–39%) and periurban (53–95%) ANCs but low at city clinics ( |
| Databáze: | OpenAIRE |
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