Encouraging Health Insurance for the Informal Sector : A Cluster Randomized Trial

Subsidized voluntary enrollment in government-run health insurance schemes is often proposed as a way of increasing coverage among informal sector workers and their families. This paper reports the results of a cluster randomized control trial in w...

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Main Authors: Wagstaff, Adam, Nguyen, Ha Thi Hong, Dao, Huyen, Bales, Sarah
Format: Policy Research Working Paper
Language:English
en_US
Published: World Bank, Washington, DC 2014
Subjects:
Online Access:http://documents.worldbank.org/curated/en/2014/06/19641542/encouraging-health-insurance-informal-sector-cluster-randomized-trial-encouraging-health-insurance-informal-sector-cluster-randomized-trial
http://hdl.handle.net/10986/18768
id okr-10986-18768
recordtype oai_dc
spelling okr-10986-187682021-04-23T14:03:49Z Encouraging Health Insurance for the Informal Sector : A Cluster Randomized Trial Wagstaff, Adam Nguyen, Ha Thi Hong Dao, Huyen Bales, Sarah ADVERSE SELECTION CHEMOTHERAPY COMMUNES COMMUNITIES COMMUNITY HEALTH DEMAND FOR HEALTH DEMAND FOR INSURANCE DIALYSIS DISTRICTS ENROLLEES EXPECTED LOSS FAMILIES FINANCIAL INCENTIVES FINANCIAL PROTECTION HEALTH CARE HEALTH COVERAGE HEALTH ECONOMICS HEALTH FACILITIES HEALTH FINANCING HEALTH INSURANCE HEALTH INSURANCE ENROLLMENT DECISION HEALTH INSURANCE PROGRAM HEALTH INSURANCE SCHEME HEALTH INSURANCE SCHEMES HEALTH ORGANIZATION HEALTH PLANNING HEALTH POLICY HEALTH STRATEGY HEALTH SYSTEM HEALTH SYSTEM PERFORMANCE HEALTH SYSTEMS HEALTH-CARE HOUSEHOLD INCOME HOUSEHOLDS HUMAN DEVELOPMENT INCOME COUNTRIES INFORMAL SECTOR INFORMAL SECTOR WORKERS INFORMATION CAMPAIGNS INFORMATION PACK INSURANCE COVERAGE INSURANCE PREMIUM INTERVENTION INTERVENTIONS LIVING STANDARDS LOCALITIES MEDICAL PERSONNEL PHYSICIAN POLICY DISCUSSIONS POLICY RESEARCH PRIMARY CARE PROBABILITY PUBLIC HOSPITAL SOCIAL HEALTH INSURANCE SOCIAL SCIENCE SOCIAL SECURITY SOCIAL SECURITY HEALTH INSURANCE TREATMENTS UNIVERSAL HEALTH INSURANCE COVERAGE WORKERS Subsidized voluntary enrollment in government-run health insurance schemes is often proposed as a way of increasing coverage among informal sector workers and their families. This paper reports the results of a cluster randomized control trial in which 3,000 households in 20 communes in Vietnam were randomly assigned at baseline to a control group or one of three treatments: an information leaflet about Vietnam s government-run scheme and the benefits of health insurance; a voucher entitling eligible household members to 25 percent off their annual premium; and both. The four groups were balanced at baseline. In the control group, 6.3 percent (82/1296) of individuals were enrolled in the endline, compared with 6.3 percent (79/1257), 7.2 percent (96/1327), and 7.0 percent (87/1245) in the information, subsidy, and combined intervention groups; the adjusted odds ratios were 0.94, 1.12, and 1.15, respectively. Only among those reporting poor health were any significant intervention effects found, and only for the combined intervention: an enrollment rate of 16.3 percent (33/202) compared with 8.3 percent (18/218) in the control group, and an adjusted odds ratio of 2.50. The results suggest limited opportunities to raise voluntary health insurance enrollment through information campaigns and subsidies, and that these interventions exacerbate adverse selection. 2014-06-25T21:41:26Z 2014-06-25T21:41:26Z 2014-06 http://documents.worldbank.org/curated/en/2014/06/19641542/encouraging-health-insurance-informal-sector-cluster-randomized-trial-encouraging-health-insurance-informal-sector-cluster-randomized-trial http://hdl.handle.net/10986/18768 English en_US Policy Research Working Paper;No. 6910 CC BY 3.0 IGO http://creativecommons.org/licenses/by/3.0/igo/ World Bank, Washington, DC Publications & Research :: Policy Research Working Paper Publications & Research East Asia and Pacific Vietnam
repository_type Digital Repository
institution_category Foreign Institution
institution Digital Repositories
building World Bank Open Knowledge Repository
collection World Bank
language English
en_US
topic ADVERSE SELECTION
CHEMOTHERAPY
COMMUNES
COMMUNITIES
COMMUNITY HEALTH
DEMAND FOR HEALTH
DEMAND FOR INSURANCE
DIALYSIS
DISTRICTS
ENROLLEES
EXPECTED LOSS
FAMILIES
FINANCIAL INCENTIVES
FINANCIAL PROTECTION
HEALTH CARE
HEALTH COVERAGE
HEALTH ECONOMICS
HEALTH FACILITIES
HEALTH FINANCING
HEALTH INSURANCE
HEALTH INSURANCE ENROLLMENT DECISION
HEALTH INSURANCE PROGRAM
HEALTH INSURANCE SCHEME
HEALTH INSURANCE SCHEMES
HEALTH ORGANIZATION
HEALTH PLANNING
HEALTH POLICY
HEALTH STRATEGY
HEALTH SYSTEM
HEALTH SYSTEM PERFORMANCE
HEALTH SYSTEMS
HEALTH-CARE
HOUSEHOLD INCOME
HOUSEHOLDS
HUMAN DEVELOPMENT
INCOME COUNTRIES
INFORMAL SECTOR
INFORMAL SECTOR WORKERS
INFORMATION CAMPAIGNS
INFORMATION PACK
INSURANCE COVERAGE
INSURANCE PREMIUM
INTERVENTION
INTERVENTIONS
LIVING STANDARDS
LOCALITIES
MEDICAL PERSONNEL
PHYSICIAN
POLICY DISCUSSIONS
POLICY RESEARCH
PRIMARY CARE
PROBABILITY
PUBLIC HOSPITAL
SOCIAL HEALTH INSURANCE
SOCIAL SCIENCE
SOCIAL SECURITY
SOCIAL SECURITY HEALTH INSURANCE
TREATMENTS
UNIVERSAL HEALTH INSURANCE COVERAGE
WORKERS
spellingShingle ADVERSE SELECTION
CHEMOTHERAPY
COMMUNES
COMMUNITIES
COMMUNITY HEALTH
DEMAND FOR HEALTH
DEMAND FOR INSURANCE
DIALYSIS
DISTRICTS
ENROLLEES
EXPECTED LOSS
FAMILIES
FINANCIAL INCENTIVES
FINANCIAL PROTECTION
HEALTH CARE
HEALTH COVERAGE
HEALTH ECONOMICS
HEALTH FACILITIES
HEALTH FINANCING
HEALTH INSURANCE
HEALTH INSURANCE ENROLLMENT DECISION
HEALTH INSURANCE PROGRAM
HEALTH INSURANCE SCHEME
HEALTH INSURANCE SCHEMES
HEALTH ORGANIZATION
HEALTH PLANNING
HEALTH POLICY
HEALTH STRATEGY
HEALTH SYSTEM
HEALTH SYSTEM PERFORMANCE
HEALTH SYSTEMS
HEALTH-CARE
HOUSEHOLD INCOME
HOUSEHOLDS
HUMAN DEVELOPMENT
INCOME COUNTRIES
INFORMAL SECTOR
INFORMAL SECTOR WORKERS
INFORMATION CAMPAIGNS
INFORMATION PACK
INSURANCE COVERAGE
INSURANCE PREMIUM
INTERVENTION
INTERVENTIONS
LIVING STANDARDS
LOCALITIES
MEDICAL PERSONNEL
PHYSICIAN
POLICY DISCUSSIONS
POLICY RESEARCH
PRIMARY CARE
PROBABILITY
PUBLIC HOSPITAL
SOCIAL HEALTH INSURANCE
SOCIAL SCIENCE
SOCIAL SECURITY
SOCIAL SECURITY HEALTH INSURANCE
TREATMENTS
UNIVERSAL HEALTH INSURANCE COVERAGE
WORKERS
Wagstaff, Adam
Nguyen, Ha Thi Hong
Dao, Huyen
Bales, Sarah
Encouraging Health Insurance for the Informal Sector : A Cluster Randomized Trial
geographic_facet East Asia and Pacific
Vietnam
relation Policy Research Working Paper;No. 6910
description Subsidized voluntary enrollment in government-run health insurance schemes is often proposed as a way of increasing coverage among informal sector workers and their families. This paper reports the results of a cluster randomized control trial in which 3,000 households in 20 communes in Vietnam were randomly assigned at baseline to a control group or one of three treatments: an information leaflet about Vietnam s government-run scheme and the benefits of health insurance; a voucher entitling eligible household members to 25 percent off their annual premium; and both. The four groups were balanced at baseline. In the control group, 6.3 percent (82/1296) of individuals were enrolled in the endline, compared with 6.3 percent (79/1257), 7.2 percent (96/1327), and 7.0 percent (87/1245) in the information, subsidy, and combined intervention groups; the adjusted odds ratios were 0.94, 1.12, and 1.15, respectively. Only among those reporting poor health were any significant intervention effects found, and only for the combined intervention: an enrollment rate of 16.3 percent (33/202) compared with 8.3 percent (18/218) in the control group, and an adjusted odds ratio of 2.50. The results suggest limited opportunities to raise voluntary health insurance enrollment through information campaigns and subsidies, and that these interventions exacerbate adverse selection.
format Publications & Research :: Policy Research Working Paper
author Wagstaff, Adam
Nguyen, Ha Thi Hong
Dao, Huyen
Bales, Sarah
author_facet Wagstaff, Adam
Nguyen, Ha Thi Hong
Dao, Huyen
Bales, Sarah
author_sort Wagstaff, Adam
title Encouraging Health Insurance for the Informal Sector : A Cluster Randomized Trial
title_short Encouraging Health Insurance for the Informal Sector : A Cluster Randomized Trial
title_full Encouraging Health Insurance for the Informal Sector : A Cluster Randomized Trial
title_fullStr Encouraging Health Insurance for the Informal Sector : A Cluster Randomized Trial
title_full_unstemmed Encouraging Health Insurance for the Informal Sector : A Cluster Randomized Trial
title_sort encouraging health insurance for the informal sector : a cluster randomized trial
publisher World Bank, Washington, DC
publishDate 2014
url http://documents.worldbank.org/curated/en/2014/06/19641542/encouraging-health-insurance-informal-sector-cluster-randomized-trial-encouraging-health-insurance-informal-sector-cluster-randomized-trial
http://hdl.handle.net/10986/18768
_version_ 1764442645909733376