Post Yellow Fever Campaign Coverage Survey 2019, First Round
Nigeria, 2019
Get MicrodataIdentification
NGA_2019_PYFCCS_v01_M
Post Yellow Fever Campaign Coverage Survey 2019
First Round
| Name | Country code |
|---|---|
| Nigeria | NGA |
Other Household Survey [hh/oth]
The survey was conceptualized by the National Measles and Yellow Fever Technical Coordinating Committee (NMYFTCC) of the National Primary Health Care Development Agency (NPHCDA) and conducted by the National Bureau of Statistics (NBS) with technical assistance from the World Health Organization and funded by Gavi. The survey was also to determine reasons for non-vaccination of eligible population during the campaign and to determine the prevalence of children receiving the first dose of yellow fever vaccine during the campaign (i.e., previously unvaccinated) and finally to identify strengths and weaknesses of program management.
The study was a three-stage stratified sampling design involving the use of computer assisted personal interviewing (CAPI) administered on respondents for yellow fever vaccination status. Survey methodology was adopted from the 2018 WHO Guidelines for National Immunization Coverage Surveys. The sample size for the PYCCS 2019 was designed to estimate state level vaccination coverage in each of the five implementing states.
Nigeria as a signatory of the Global and Regional Public Health goals, has embarked on implementing the eliminate Yellow Fever Epidemics (EYE) Strategy that was launched in 2017. With more than 50 partners involved, the EYE partnership supports 40 at-risk countries in Africa and the Americas to prevent, detect, and respond to yellow fever suspected cases and outbreaks. The partnership aims at protecting at-risk populations, preventing international spread, and containing outbreaks rapidly. By 2026, it is expected that more than 1 billion people will be protected against the disease. The country has initiated a 10-year plan in line with the EYE strategic objectives. Reactive campaigns started in some States, namely Kogi, Kwara, Zamfara and Kebbi in 2018. This phase 1 States is followed by the end of November 2018, to cover the second preventive mass vaccination campaign in six high risk States (Borno, Plateau, FCT, Niger, Kebbi and Sokoto). For each phase, as approved by Gavi, a post campaign coverage survey is conducted to validate the performance.
The Post Yellow Fever Campaign Coverage Survey was conducted in January and February 2019 in five of the six implementing states - Sokoto, Niger, Kebbi, Plateau and the FCT. The main objectives were to assess the level of yellow fever coverage in five (5) of the six (6) implementing states (FCT, Plateau, Kebbi, Sokoto and Niger) as well as to analyze coverage by age group (9-11 months, 12 - 23 months, 2 -5 years, 6-15 years and 16-44 years). The survey was also to determine reasons for non-vaccination of eligible population during the campaign and to determine the prevalence of children receiving the first dose of yellow fever vaccine during the campaign (i.e., previously unvaccinated) and finally to identify strengths and weaknesses of program management.
The study was a three-stage stratified sampling design involving the use of computer assisted personal interviewing (CAPI) administered on respondents for yellow fever vaccination status. Survey methodology was adopted from the 2018 WHO Guidelines for National Immunization Coverage Surveys. The sample size for the PYCCS 2019 was designed to estimate state level vaccination coverage in each of the five implementing states.
Sample survey data [ssd]
- Household
- Individual
Version
Version 01: Edited, anonymous dataset for public distribution.
2019-04-04
This is the first version to be released before review process.
Scope
The 2019 Nigeria Post Yellow Fever Campaign Coverage Survey covered the following topics:
HOUSEHOLD
- Household Information
- Household roster
INDIVIDUAL
- Eligible person information panel
- Demographic
- Immunization
Coverage
National coverage
This questionnaire was administered to the selected individual if the individual is aged 15 years and above and to mothers or caregivers of the selected child if the selected child is aged 9 months - 14 years.
Producers and sponsors
| Name | Affiliation |
|---|---|
| National Bureau of Statistics (NBS) | Federal Government of Nigeria |
| Name | Affiliation | Role |
|---|---|---|
| National Primary Health Care Development Agency | Ministry of Health | Coordinator |
| World Health Organization | Technical Assistance |
| Name | Role |
|---|---|
| Federal Government of Nigeria | Funding |
| The Vaccine Alliance | Funding |
Sampling
The sample design for any household-based survey requires availability of a good sampling frame. The frame of enumeration areas (EAs) developed by the National Population Commission (NPopC) for the purpose of the Housing and Population Census conducted in 2006 was the sampling frame to be used. For this survey.
The sampling frame was developed under the second National Integrated Survey of Households (NISH2) master frame programme. There were no inaccessible LGAs in any of the sampled states due to security or any external factors, except hard to reach areas. Also, there was no exclusion to Interpretation of results from any area.
From the list of 662,529 EAs for the country, NBS drew a Master Sample of 30 Enumeration Areas with equal probability from each LGA in the 36 states and 40 EAs in each of the 6 LGAs in the FCT, Abuja. This brings the total number of master sample EAs selected by NBS for its household-based surveys to 23,280. The National Integrated Survey of Households (NISH) is a two-stage replicated and rotatable cluster sample design. The State-base NISH Master Sample Frame is constructed by pooling together LGA master samples of 30 EAs for all the LGAs in the state and selecting sample of 200 EAs using a systematic selection procedure. These 200 EAs that form the NISH master sample were selected into 20 replicates, with each replicate containing 10 sample EAs.
The stages of selection are stated below:
-
The first stage selection is the selection of EAs in each of the five (5) strata namely Kebbi, Sokoto, Niger, Plateau and the Federal Capital Territory (FCT), Abuja. Forty (40) enumeration areas (4 replicates) were selected for coverage in each of the strata. A total of 200 EAs were selected in all the five strata.
-
The second stage involved the selection of households within each cluster by using systematic random sampling. A sample of seven (7) households was randomly selected per EA for the interview providing a total of 1,400 households in the five (5) states.
-
The third stage selection involved all household members who were aged between 9 months and 44 years were eligible for inclusion into the survey. This eligible age range was divided into three non-overlapping age cohorts of 9 - 23 months, 24 - 59 months, and 6 - 44 years and one eligible person was randomly selected for interview from each of these age cohorts in a household. When there was only one eligible person in an age group, that person automatically qualified to be interviewed and was selected for interviewing. Using this three-stage sampling design, a maximum of three persons were interviewed in the selected households regardless of the number of persons aged between 9 months and 44 years there were in a household. Household members outside the age range of 9 months and 44 years were not included in the survey.
The use of Kish grid at the household for selection of individuals to be interviewed was programmed into the Computer Assisted Personal Interviewing (CAPI) that were used for data collection. Individuals to be interviewed were selected automatically on completion of the household roster.
The response rate was very high with 98.9 percent.
Population weight was calculated for the household. This weight variable (wt) has been included in the dataset: When applied, this weight will raised the sample households and individuals to national values.
Survey instrument
The questionnaire is a structured questionnaire developed as a joint effort of the National Bureau of Statistics, National Primary Health Care Development Agency (NPHCDA) and World Health Organization (WHO).
The information collected are stated below in each module of the questionnaire:
- The household questionnaire collected information on:
- Household Identification
- Household Member Roster
- The individual questionnaire are administered to selected member of the household who are 15 years and above and to mothers and caregivers. Information collected are:
- Individual Identification
- Demographic Information
- Immunization
Data collection
| Start | End | Cycle |
|---|---|---|
| 2019-01-25 | 2019-02-10 | 2 weeks |
- Face-to-face [f2f]
| Name | Affiliation |
|---|---|
| National Bureau of Statistics | Federal Government of Nigeria |
Field interview and the first level of editing were carried out by the interviewers in the presence of monitors. The monitors ensured that the questionnaires were properly administered and edited before leaving for the next enumeration areas.
Three levels of monitoring were deployed: the first level was done by the NBS state officers, the second by the NBS zonal controllers and the third by the technical team comprising of NBS and the other stakeholders. The monitors ensured proper compliance with the laid down protocols as contained in the manual, effected necessary corrections, and tackled problems that arose.
There were five teams in each state which comprised of 2 enumerators and 1 team leader (Supervisor) making a total of 15 field personnel in each state and 75 field personnel in the five implementing states. A team of experienced facilitators from NBS and partner organizations conducted training of field personnel. Supervisory layers were set up through the use of team leaders who were embedded within the data collection teams to monitor quality. Data collected in the field were synchronized with a centralized database at the end of data collection. The data were then reviewed on a daily basis for completeness and quality and feedback provided to the teams before so that they could address any issues with the data. In addition, monitoring officers/trainers from NBS Headquarters also carried out monitoring in the field in collaboration with monitors selected from other major stakeholders.
Data processing
Data collection was conducted using CSPro (Census and Survey) software running on android tablet computers. Range checks and skip patterns were coded into the data entry program to ensure that only all valid responses were collected and that there were responses to all applicable questions. On completion of the household roster, only age-eligible respondents were presented to the interviewer for interviewing and information had to be collected on all selected respondents before a household completion status was generated by the CAPI software. Once an interview was completed, data from an enumerators tablet was synchronized with the supervisors' tablet for primary data editing. The supervisor then transmitted the data to a centralized database once all eligible within an enumeration area had been interviewed.
Data Access
| Name | Affiliation | URL | |
|---|---|---|---|
| National Bureau of Statistics (NBS) | Federal Government of Nigeria (FGN) | http://www.nigerianstat.gov.ng | feedback@nigerianstat.gov.ng |
| Confidentiality declaration text |
|---|
| The confidentiality of the individual respondent is protected by law (Statistical Act 2007). This is published in the Official Gazette of the Federal republic of Nigeria No. 60 vol. 94 of 11th June 2007. See section 26 para.2. Punitive measures for breeches of confidentiality are outlined in section 28 of the same Act. |
A comprehensive data access policy is been developed by NBS, however section 27 of the Statistical Act 2007 outlines the data access obligation of data producers which includes the realease of properly anonymized micro data.
National Bureau of Statistics, Post Yellow Fever Campaign Coverage Survey 2019 v1.0 of the public use (June, 2019) provided by National Data Archive, http:/www.nigerianstat.gov.ng''
Disclaimer and copyrights
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
(c) NBS 2019
Contacts
| Name | Affiliation | |
|---|---|---|
| Dr. Yemi Kale (Statistician General) | National Bureau of Statistics | yemikale@nigerianstat.gov.ng |
| Mr Biyi Fafunmi (Head of ICT) | National Bureau of Statistics | biyifafunmi@nigerianstat.gov.ng |
| Mr Isiaka Olarenwaju (Deputy-Director:Household Statistics) | National Bureau of Statistics | ialarenwaju@yahoo.com |
Metadata production
DDI_NGA_2019_PYFCCS_v01_M
| Name | Affiliation | Role |
|---|---|---|
| National Bureau of Statistics | Federal Government of Nigeria | Meta Producer |
2019-07-08
Metadata version
Version 01 (January 2022): This metadata was downloaded from Nigeria National Bureau of Statistics microdata library catalog (https://www.nigerianstat.gov.ng/nada/index.php/catalog). The following metadata information has been edited – Document and Survey ID.