Evidence map›Paper›PMID 33997733›Full record

ArticleEClinicalMedicine2021

Human papillomavirus vaccination uptake in low-and middle-income countries: a meta-analysis.

Thinley Dorji, Tanawin Nopsopon, Saran Tenzin Tamang, Krit Pongpirul

Registry-linked trialAbstract read
In one paragraph

Article in EClinicalMedicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06341738 (The Efficacy of Digital Educational Interventions on Parental HPV Knowledge and Attitude, and Their Children's HPV Vaccination Rates in Indonesia), which is not on this map. Cited by 88 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 5 pooled it
–field-weighted citation impact
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.

NCT06341738 nacompletednot on this mapstarted 2023, after this paper: background citation

The Efficacy of Digital Educational Interventions on Parental HPV Knowledge and Attitude, and Their Children's HPV Vaccination Rates in Indonesia

TypeinterventionalSponsorKaohsiung Medical UniversityRan2023 to 2024Enrolled374ConditionsHealth Services ResearchArmsVideo education about HPV and HPV vaccine, Electronic reminder messages, Usual Information Service
3 · Its place in the literature

Who cites it

88 citing papers in PubMed, 5 syntheses or guidelines pooled it.

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  13. An overview of clinical trials in anal cancer 1999-2024.ESMO gastrointestinal oncology · 2026
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  17. Determinants of HPV vaccine hesitancy in South Asia: a systematic review.Clinical and experimental vaccine research · 2026
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28 more citing papers are in PubMed but not listed here.

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

4 authors.

Thinley DorjiDepartment of Internal Medicine, Jigme Dorji Wangchuck National Referral Hospital, Thimphu, Bhutan.
Tanawin NopsoponDepartment of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Saran Tenzin TamangDepartment of Obstetrics and Gynaecology, Central Regional Referral Hospital, Gelegphu, Bhutan.
Krit PongpirulDepartment of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe proportion of incident cases of HPV-attributable cancers is highest in the low- and middle-income countries (LMICs) but many are yet to initiate HPV vaccination programs. This meta-analysis was performed to assess the uptake of HPV vaccination in LMICs at the beginning of the global strategy to eliminate cervical cancer and describes the gaps and challenges.

methodsA systematic search was conducted in PubMed, EMBASE, Scopus, Web of Science, and CENTRAL databases for observational studies that reported the uptake of HPV vaccination until October 2020. The meta-analysis was done using a random-effects model to assess the pooled estimate of HPV uptake. CRD42021218429.

findingsDuring 2008-2020, an estimated 3.3 million females received at least one dose of HPV vaccine with 61.69% of the target population vaccinated. In countries with high uptake, the pooled estimate of uptake was higher in females than males (45.48% vs 8.45%) and showed significant decline in 2015-2020 compared to 2006-2014 (89.03% vs 41.48%). In countries with low uptake, the estimate of uptake was low in both males and females (5.31% vs 2.93%) and showed increase in uptake in 2015-2020 compared to 2006-2014 (0.76% vs 5.22%). In countries with high uptake, compared to routine programs, the estimate was higher when delivered through demonstration programs (89.94% vs 59.74%).

interpretationThe major concern was a significant drop in the uptake in countries that started with high uptake, challenges in the maintenance of vaccine uptake, sustainability of funding and the lack of standard monitoring and reporting.

Indexed as

2vHPV, bivalent HPV vaccine4vHPV, quadrivalent HPV vaccine9vHPV, 9-valent HPV vaccineCENTRAL, cochrane central register of controlled trialsCervical cancer eliminationCI, confidence intervalCIN2+, cervical intra-epithelial neoplasia grade IIEMBASE, excerpta medica dataBASEGNI, gross national incomeHPV, human papillomavirusHPV vaccineLMICs, Low- and middle-income countriesLow-and middle-income countriesMeta-analysisMSM, men having sex with menRR, relative riskSTROBE, strengthening the reporting of observational studies in epidemiologySystematic reviewUS, United StatesVaccine uptakeWHO, World Health Organization

Identifiers

PMID33997733
PMCPMC8102703

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Registered trials

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.