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 | 63401 |
Downloads | 20682 |
Data Processing
Data Editing
At the survey site, data collection forms were completed, stored and later transported to the Statelevel. The State laboratory scientists collated all data forms at the State level and forwarded them to the Federal Ministry of Health for electronic entry by the data entry team. The team checked the data forms for completeness, obvious errors and inconsistencies in order to identify any possible data quality errors.
During the data entry process, the following specific measures were taken to ensure that the data were accurate:
CHECK codes were created to ensure that only legal entries and data in specified ranges were entered.
All entries on the computer were checked against the the data on paper, item by item.
Frequency tables were generated for all variables in order to further examine whether there were double or unusual entries.
Double entry of data (100%) was done to validate entered data using the VALIDATE option in EPIINFO menu.
Discrepant records were reviewed and corrected before data analysis commenced.
Other Processing
The analysis focused on determining the prevalence of HIV infection by the relevant independentvariables such as age, site, State, zone, education and location. The median and the overall prevalence rates for States, zones and the entire country were determined. Exact 95% confidence intervals were determined for all the rates. The differences between the States and zones were evaluated and the trend analysis was carried out for some consistent sites and States. PMTCT and ANC
sentinel surveillance data were analyzed and compared for all the sites which provided PMTCTservices and participated in the ANC survey.