Nigeria - National HIV Sero-Prevalence Sentinel Survey 2008, Eight round
Reference ID | NGA-FMOH-ANC-2008-v1.1 |
Year | 2008 |
Country | Nigeria |
Producer(s) | Federal Ministry of Health - Federal Govenment of Nigeria |
Sponsor(s) | Center for Disease Conrtol - CDC - Technical and Financial Support World Health Organization - WHO - Technical and Financial Support National Agency for the Control of AIDS (NACA) - NACA - Technical and Financial Support |
Metadata | Documentation in PDF Download DDI Download RDF |
Created on | Aug 29, 2012 |
Last modified | Dec 02, 2013 |
Page views | 63403 |
Downloads | 20682 |
Data Collection
Data Collection Dates
Start | End | Cycle |
---|---|---|
2008-06-16 | 2008-09-08 | 12 weeks |
Time Periods
Start | End | Cycle |
---|---|---|
2008 | 3yrs |
Data Collection Mode
Face-to-face [f2f]
Blood and data collection
Government policy states that all public health facilities must screen all pregnant women for syphilis
in order to control and prevent congenital syphilis. As such, all women are routinely offered the
syphilis test during their first antenatal visit in Nigeria. If they accept, 5ml of blood is collected to
conduct the test. Women are then informed of the result of their syphilis screening during the next
visit and appropriately treated according to the country guidelines.
For this survey, an unlinked anonymous method was used. After the syphilis test, an anonymous and
unlinked serum sample was collected from the leftover blood and sent to the state central laboratory
for the HIV test.
3.6.1 Demographic data collection
All sites collected minimum demographic data from each eligible pregnant woman including age,
education, marital status, parity and gravidity using the Personal Data Form (Appendix I). The
participant's name was written on the personal data form and her survey ID sticker was also placed on
the same form.
3.6.2 Blood collection, processing and unlinking process
Pregnant women were sent to the laboratory staff or to the nurse responsible for blood collection.
Five (5) milliliters of blood were collected in a vacutainer labeled with the woman's name only and
sent to the local site laboratory for screening.
Quality Assurance Measures
The following measures were adopted to ensure that the results were accurate, reliable and reproducible:
Engagement of highly qualified and experienced laboratory personnel at the State laboratories and QC laboratory.
Conducting central and zonal level trainings for all the personnel involved in the survey.
The central and zonal level trainings were conducted by a team of resource persons using a standardized three-day training package. This included two days of didactic lectures with group work and one day of laboratory practicals.
All the laboratory scientists who participated in the quality control aspect of the survey were adequately trained for the activity.
All the sites/States used the same test kits for syphilis and HIV.
All the test kits used were thoroughly evaluated and assessed for potency and shelve life before use, All kits were stored at 4-8C (refrigerator or vaccine cold room). Lot number, batch number and expiry date were noted and documented.
All the States were provided with positive and negative HIV Control panels (produced in Nigeria). Worksheets were provided to document the running of controls on a weekly basis. At the end of the survey, all the specimens and survey forms were retrieved.
All the consumables used for sample separation, storage and dispensing were sterile and disposable.
TWO supervisory visits were made to all the the survey sites by the national survey team to ensure compliance with the survey protocol by all field workers using the Checklist for site supervisory visit (Appendix IV).
A medical officer in the ANC clinic recruited for the survey supervised the sample and data collection procedures at the respective ANC clinic; while the State laboratory
scientist supervised sample processing and storage during the weekly visit to sites. The SAPC also carried out regular supervisory visits to the sites and State laboratory using the Checklist for site supervisory visit (Appendix IV).
Every State produced a detailed report on the conduct of the survey in the State.
Laboratory scientists selected for participation in the survey were currently performing routine syphilis and/or HIV screening on the bench at their respective centres.
A system was put in place to perform HIV test kit lot monitoring.
3.10 Data collection from PMTCT sites
Data on PMTCT were collected from ANC sentinel sites offering PMTCT services. Data collected from PMTCT sites three months preceding the survey and during the survey period included the following:
Number of new clients
Number of clients counselled for HIV
Number of clients tested for HIV
Number of clients positive for HIV
Individual level information from the Personal Data Forms of the ANC survey.