COVID-19 High Frequency Phone Survey of Households 2021 - Round 6

Viet Nam, 2021

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Reference ID

VNM_2021_HFPS-R6_v01_M

DOI

https://doi.org/10.48529/cvx7-3m59

Producer(s)

World Bank

Collection(s)

High-Frequency Phone Surveys

Metadata

Documentation in PDF DDI/XML JSON

Created on

Sep 02, 2022

Last modified

May 23, 2024

Page views

6150

Downloads

169

Identification

Survey ID number

VNM_2021_HFPS-R6_v01_M

Title

COVID-19 High Frequency Phone Survey of Households 2021 - Round 6

Country/Economy

Name	Country code
Viet Nam	VNM

Study type

Socio-Economic/Monitoring Survey [hh/sems]

Series Information

The main objective of this project is to collect household data for the ongoing assessment and monitoring of the socio-economic impacts of COVID-19 on households and family businesses in Vietnam. The estimated field work and sample size of households in each round is as follows:

Round 1 June/July 2020 fieldwork- approximately 6300 households (at least 1300 minority households)
Round 2 July/Aug 2020 fieldwork - approximately 4000 households (at least 1000 minority households)
Round 3 September 2020 - approximately 4000 households (at least 1000 minority households)
Round 4 January 2021- approximately 4000 households (at least 1000 minority households)
Round 5 March 2021 - - approximately 4000 households (at least 1000 minority households)

Additional rounds are under discussion.

Other identifiers

Type	Identifier
DOI	https://doi.org/10.48529/cvx7-3m59

Unit of Analysis

households

Version

Version Description

Anonymized dataset for public distribution.

Version Date

2022-08-02

Coverage

Geographic Coverage

National, regional

Producers and sponsors

Primary investigators

Name
World Bank

Producers

Name	Role
Mekong Development Research Institute	Survey collection firm

Funding Agency/Sponsor

Name	Role
World Bank	Partially funded the activity
Department of Foreign Affairs and Trade of Australia	Partially funded the activity

Sampling

Sampling Procedure

The 2021 Vietnam COVID-19 High Frequency Phone Survey of Households (VHFPS) uses a nationally representative household survey from 2018 as the sampling frame. The 2018 baseline survey includes 46,980 households from 3132 communes (about 25% of total communes in Vietnam). In each commune, one EA is randomly selected and then 15 households are randomly selected in each EA for interview. We use the large module of to select the households for official interview of the VHFPS survey and the small module households as reserve for replacement.

After data processing, the final sample size for Round 6 is 3,938 households.

Weighting

The main steps for weight adjustment to ensure national and regional representativeness are:
(1) Start with base weights from 2018 survey
(2) HH selection and non-response adjustment using propensity score and probability of selection correction.
(3) Post-stratification: Rescale weights to match national, region, urban/rural populations based on the 2019 population census.
(4) Trim weights

Survey instrument

Questionnaires

The questionnaire for this round consisted of the following sections

Section 2. Behavior
Section 3. Health
Section 4. Education
Section 5. Employment (main respondent)
Section 6. Coping
Section 8. FIES
Section 10. Opinion

Note: Some categorical responses have been merged in the anonymized data set for confidentiality.

Data collection

Dates of Data Collection

Start	End
2021-03-13	2021-03-31

Mode of data collection

Computer Assisted Telephone Interview [cati]

Supervision

World Bank

Depositor information

Depositor

Name
Judy Yang (EAP)

Data Access

Access authority

Name
World Bank Microdata Library

Citation requirements

Use of the dataset must be acknowledged using a citation which would include:

the Identification of the Primary Investigator
the title of the survey (including country, acronym and year of implementation)
the survey reference number
the source and date of download

Example:
World Bank (2021). COVID-19 High Frequency Phone Survey of Households 2021 - Round 6. Ref: VNM_2021_HFPS-R6_v01_M. Downloaded from [uri] on [date].

Disclaimer and copyrights

Disclaimer

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.

Contacts

Name	Email
World Bank Microdata Library	microdata@worldbank.org

Metadata production

DDI Document ID

DDI_VNM_2021_HFPS-R6_v01_M_WB

Producers

Name	Affiliation	Role
Development Data Group	World Bank	Documentation of the study

Date of Metadata Production

2022-09-02

Metadata version

DDI Document version

Version 01 (2022-09-02)

Citation

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