Evidence map›Paper›PMID 30288032›Full record

ArticlePatient preference and adherence2018

Feasibility and willingness to pay for dengue vaccine in the threat of dengue fever outbreaks in Vietnam.

Long Hoang Nguyen, Bach Xuan Tran, Cuong Duy Do, Chi Linh Hoang, Thao Phuong Nguyen, Trang Thi Dang, Giang Thu Vu, Tung Thanh Tran, Carl A Latkin, Cyrus S Ho and 1 more

Open access · goldAbstract read
In one paragraph

Article in Patient preference and adherence, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

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  13. An Asia-Pacific study on healthcare workers' perceptions of, and willingness to receive, the COVID-19 vaccination.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 8 institutions in 4 countries.

Long Hoang NguyenDepartment of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.
Bach Xuan TranInstitute for Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Vietnam, bach.ipmph@gmail.com.
Cuong Duy DoDepartment of Infectious Diseases, Bach Mai Hospital, Hanoi, Vietnam.
Chi Linh HoangCenter of Excellence in Behavioral Medicine, Nguyen Tat Thanh University, Ho Chi Minh city, Vietnam.
Thao Phuong NguyenInstitute for Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Vietnam, bach.ipmph@gmail.com.
Trang Thi DangInstitute for Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Vietnam, bach.ipmph@gmail.com.
Giang Thu VuInstitute for Global Health Innovations, Duy Tan University, Da Nang, Vietnam.
Tung Thanh TranInstitute for Global Health Innovations, Duy Tan University, Da Nang, Vietnam.
Carl A LatkinDepartment of Health, Behavior, and Society, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA, bach.ipmph@gmail.com.
Cyrus S HoDepartment of Psychological Medicine, National University Hospital, Singapore, Singapore.
Roger Cm HoDepartment of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Duy Tan University · VNHanoi Medical University · VNJohns Hopkins University · USBạch Mai Hospital · VNKarolinska Institutet · SENational University Hospital · SGNational University of Singapore · SGTrường ĐH Nguyễn Tất Thành · VN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe escalation of dengue fever (DF) cases in recent years and the occurrence of a large-scale DF outbreak in 2017 underline the importance of dengue vaccines in Vietnam. Given the potential benefits of the dengue vaccines and the need for copayment by the private sector, this study aims to evaluate the willingness to pay (WTP) for the dengue vaccines in patients with DF in Northern Vietnam.

methodsA cross-sectional study was conducted on 330 in-and-out patients with DF admitted to the Bach Mai Hospital. We used the contingent valuation method to evaluate the WTP for dengue vaccines. Socioeconomic and clinical characteristics were also investigated. Multivariate interval and logistic regression models were used to estimate the average amount of WTP and identify the factors associated with the WTP.

resultsAround 77.3% patients were willing to pay an average amount of US$ 67.4 (95% CI=57.4-77.4) for the vaccine. People of higher ages, those having health insurance, those traveling in the past 15 days or suffering from anxiety/depression were less likely to be willing to pay for the dengue vaccine. However, people having a longer duration of DF or having problems with mobility were positively associated with WTP for the dengue vaccine. Patients educated to more than high school levels (Coeff.=31.31; 95% CI=3.26-59.35), those in the richest quintile (Coeff.=62.76; 95% CI=25.40; 100.13), or those having a longer duration of the disease (Coeff.=6.18; 95% CI=0.72-11.63) were willing to pay a higher amount.

conclusionThis study highlights a relatively high rate and amount of WTP for the dengue vaccine among patients with DF. Psychological counseling services as well as educational campaigns should be undertaken to improve the WTP for the vaccine. Moreover, government subsidies should be given to increase the coverage of the vaccine in the future, especially for the poor.

Indexed as

contingent valuationdenguevaccineVietnamwillingness to pay

Identifiers

PMID30288032
PMCPMC6163003
OpenAlexW2892967189

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.