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Fallucca A, Priano W, Carubia A, Ferro P, Pisciotta V, Casuccio A, Restivo V. Effectiveness of Catch-Up Vaccination Interventions Versus Standard or Usual Care Procedures in Increasing Adherence to Recommended Vaccinations Among Different Age Groups: Systematic Review and Meta-Analysis of Randomized Controlled Trials and Before-After Studies. JMIR Public Health Surveill 2024; 10:e52926. [PMID: 39042433 PMCID: PMC11303899 DOI: 10.2196/52926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 04/16/2024] [Accepted: 04/30/2024] [Indexed: 07/24/2024] Open
Abstract
BACKGROUND To address the global challenge of vaccine hesitancy, the Strategic Advisory Group of Experts on Immunization strongly promotes vaccination reminder and recall interventions. Coupled with the new opportunities presented by scientific advancements, these measures are crucial for successfully immunizing target population groups. OBJECTIVE This systematic review and meta-analysis aims to assess the effectiveness of various interventions in increasing vaccination coverage compared with standard or usual care. The review will cover all vaccinations recommended for different age groups. METHODS In February 2022, 2 databases were consulted, retrieving 1850 studies. Following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, 79 manuscripts were included after the assessment phase. These comprised 46 trials/randomized controlled trials (RCTs) and 33 before-after studies. A meta-analysis using a random-effects model was performed with STATA software (version 14.1.2). The selected outcome was the risk ratio (RR) of vaccination coverage improvement effectiveness. Additionally, meta-regression analyses were conducted for the included manuscripts. RESULTS The analyses showed an overall efficacy of RR 1.22 (95% CI 1.19-1.26) for RCTs and RR 1.70 (95% CI 1.54-1.87) for before-after studies when considering all interventions cumulatively. Subgroup analyses identified multicomponent interventions (RR 1.58, 95% CI 1.36-1.85) and recall clinical interventions (RR 1.24, 95% CI 1.17-1.32) as the most effective in increasing vaccination coverage for RCTs. By contrast, educational interventions (RR 2.13, 95% CI 1.60-2.83) and multicomponent interventions (RR 1.61, 95% CI 1.43-1.82) achieved the highest increases for before-after studies. Meta-regression analyses indicated that the middle-aged adult population was associated with a higher increase in vaccination coverage (RCT: coefficient 0.54, 95% CI 0.12-0.95; before-after: coefficient 1.27, 95% CI 0.70-1.84). CONCLUSIONS Community, family, and health care-based multidimensional interventions, as well as education-based catch-up strategies, effectively improve vaccination coverage. Therefore, their systematic implementation is highly relevant for targeting undervaccinated population groups. This approach aligns with national vaccination schedules and aims to eliminate or eradicate vaccine-preventable diseases.
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Affiliation(s)
- Alessandra Fallucca
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialities, University of Palermo, Palermo, Italy
| | - Walter Priano
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialities, University of Palermo, Palermo, Italy
| | - Alessandro Carubia
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialities, University of Palermo, Palermo, Italy
| | - Patrizia Ferro
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialities, University of Palermo, Palermo, Italy
| | - Vincenzo Pisciotta
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialities, University of Palermo, Palermo, Italy
| | - Alessandra Casuccio
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialities, University of Palermo, Palermo, Italy
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Oyo-Ita A, Oduwole O, Arikpo D, Effa EE, Esu EB, Balakrishna Y, Chibuzor MT, Oringanje CM, Nwachukwu CE, Wiysonge CS, Meremikwu MM. Interventions for improving coverage of childhood immunisation in low- and middle-income countries. Cochrane Database Syst Rev 2023; 12:CD008145. [PMID: 38054505 PMCID: PMC10698843 DOI: 10.1002/14651858.cd008145.pub4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
BACKGROUND Immunisation plays a major role in reducing childhood morbidity and mortality. Getting children immunised against potentially fatal and debilitating vaccine-preventable diseases remains a challenge despite the availability of efficacious vaccines, particularly in low- and middle-income countries. With the introduction of new vaccines, this becomes increasingly difficult. There is therefore a current need to synthesise the available evidence on the strategies used to bridge this gap. This is a second update of the Cochrane Review first published in 2011 and updated in 2016, and it focuses on interventions for improving childhood immunisation coverage in low- and middle-income countries. OBJECTIVES To evaluate the effectiveness of intervention strategies to boost demand and supply of childhood vaccines, and sustain high childhood immunisation coverage in low- and middle-income countries. SEARCH METHODS We searched CENTRAL, MEDLINE, CINAHL, and Global Index Medicus (11 July 2022). We searched Embase, LILACS, and Sociological Abstracts (2 September 2014). We searched WHO ICTRP and ClinicalTrials.gov (11 July 2022). In addition, we screened reference lists of relevant systematic reviews for potentially eligible studies, and carried out a citation search for 14 of the included studies (19 February 2020). SELECTION CRITERIA Eligible studies were randomised controlled trials (RCTs), non-randomised RCTs (nRCTs), controlled before-after studies, and interrupted time series conducted in low- and middle-income countries involving children that were under five years of age, caregivers, and healthcare providers. DATA COLLECTION AND ANALYSIS We independently screened the search output, reviewed full texts of potentially eligible articles, assessed the risk of bias, and extracted data in duplicate, resolving discrepancies by consensus. We conducted random-effects meta-analyses and used GRADE to assess the certainty of the evidence. MAIN RESULTS Forty-one studies involving 100,747 participants are included in the review. Twenty studies were cluster-randomised and 15 studies were individually randomised controlled trials. Six studies were quasi-randomised. The studies were conducted in four upper-middle-income countries (China, Georgia, Mexico, Guatemala), 11 lower-middle-income countries (Côte d'Ivoire, Ghana, Honduras, India, Indonesia, Kenya, Nigeria, Nepal, Nicaragua, Pakistan, Zimbabwe), and three lower-income countries (Afghanistan, Mali, Rwanda). The interventions evaluated in the studies were health education (seven studies), patient reminders (13 studies), digital register (two studies), household incentives (three studies), regular immunisation outreach sessions (two studies), home visits (one study), supportive supervision (two studies), integration of immunisation services with intermittent preventive treatment of malaria (one study), payment for performance (two studies), engagement of community leaders (one study), training on interpersonal communication skills (one study), and logistic support to health facilities (one study). We judged nine of the included studies to have low risk of bias; the risk of bias in eight studies was unclear and 24 studies had high risk of bias. We found low-certainty evidence that health education (risk ratio (RR) 1.36, 95% confidence interval (CI) 1.15 to 1.62; 6 studies, 4375 participants) and home-based records (RR 1.36, 95% CI 1.06 to 1.75; 3 studies, 4019 participants) may improve coverage with DTP3/Penta 3 vaccine. Phone calls/short messages may have little or no effect on DTP3/Penta 3 vaccine uptake (RR 1.12, 95% CI 1.00 to 1.25; 6 studies, 3869 participants; low-certainty evidence); wearable reminders probably have little or no effect on DTP3/Penta 3 uptake (RR 1.02, 95% CI 0.97 to 1.07; 2 studies, 1567 participants; moderate-certainty evidence). Use of community leaders in combination with provider intervention probably increases the uptake of DTP3/Penta 3 vaccine (RR 1.37, 95% CI 1.11 to 1.69; 1 study, 2020 participants; moderate-certainty evidence). We are uncertain about the effect of immunisation outreach on DTP3/Penta 3 vaccine uptake in children under two years of age (RR 1.32, 95% CI 1.11 to 1.56; 1 study, 541 participants; very low-certainty evidence). We are also uncertain about the following interventions improving full vaccination of children under two years of age: training of health providers on interpersonal communication skills (RR 5.65, 95% CI 3.62 to 8.83; 1 study, 420 participants; very low-certainty evidence), and home visits (RR 1.29, 95% CI 1.15 to 1.45; 1 study, 419 participants; very low-certainty evidence). The same applies to the effect of training of health providers on interpersonal communication skills on the uptake of DTP3/Penta 3 by one year of age (very low-certainty evidence). The integration of immunisation with other services may, however, improve full vaccination (RR 1.29, 95% CI 1.16 to 1.44; 1 study, 1700 participants; low-certainty evidence). AUTHORS' CONCLUSIONS Health education, home-based records, a combination of involvement of community leaders with health provider intervention, and integration of immunisation services may improve vaccine uptake. The certainty of the evidence for the included interventions ranged from moderate to very low. Low certainty of the evidence implies that the true effect of the interventions might be markedly different from the estimated effect. Further, more rigorous RCTs are, therefore, required to generate high-certainty evidence to inform policy and practice.
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Affiliation(s)
- Angela Oyo-Ita
- Department of Community Health, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Olabisi Oduwole
- Department of Medical Laboratory Science, Achievers University, Owo, Nigeria
| | - Dachi Arikpo
- Cochrane Nigeria, Institute of Tropical Diseases Research and Prevention, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Emmanuel E Effa
- Internal Medicine, College of Medical Sciences, University of Calabar, Calabar, Nigeria
| | - Ekpereonne B Esu
- Department of Public Health, College of Medical Sciences, University of Calabar, Calabar, Nigeria
| | - Yusentha Balakrishna
- Biostatistics Unit, South African Medical Research Council, Durban, South Africa
| | - Moriam T Chibuzor
- Cochrane Nigeria, Institute of Tropical Diseases Research and Prevention, University of Calabar Teaching Hospital, Calabar, Nigeria
| | - Chioma M Oringanje
- GIDP Entomology and Insect Science, University of Tucson, Tucson, Arizona, USA
| | | | - Charles S Wiysonge
- Cochrane South Africa, South African Medical Research Council, Cape Town, South Africa
- Vaccine-Preventable Diseases Programme, World Health Organization Regional Office for Africa, Cité du Djoué, Brazzaville, Congo
| | - Martin M Meremikwu
- Department of Paediatrics, University of Calabar Teaching Hospital, Calabar, Nigeria
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Malik AA, Ahmed N, Shafiq M, Elharake JA, James E, Nyhan K, Paintsil E, Melchinger HC, Team YBI, Malik FA, Omer SB. Behavioral interventions for vaccination uptake: A systematic review and meta-analysis. Health Policy 2023; 137:104894. [PMID: 37714082 PMCID: PMC10885629 DOI: 10.1016/j.healthpol.2023.104894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/22/2023] [Accepted: 08/15/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND Human behavior and more specifically behavioral insight-based approaches to vaccine uptake have often been overlooked. While there have been a few narrative reviews indexed in Medline on behavioral interventions to increase vaccine uptake, to our knowledge, none have been systematic reviews and meta-analyses covering not just high but also low-and-middle income countries. METHODS We included 613 studies from the Medline database in our systematic review and meta-analysis categorizing different behavioral interventions in 9 domains: education campaigns, on-site vaccination, incentives, free vaccination, institutional recommendation, provider recommendation, reminder and recall, message framing, and vaccine champion. Additionally, considering that there is variability in the acceptance of vaccines among different populations, we assessed studies from both high-income countries (HICs) and low- to middle-income countries (LMICs), separately. FINDINGS Our results showed that behavioral interventions can considerably improve vaccine uptake in most settings. All domains that we examined improved vaccine uptake with the highest effect size associated with provider recommendation (OR: 3.4 (95%CI: 2.5-4.6); Domain: motivation) and on-site vaccination (OR: 2.9 (95%CI: 2.3-3.7); Domain: practical issues). While the number of studies conducted in LMICs was smaller, the quality of studies was similar with those conducted in HICs. Nevertheless, there were variations in the observed effect sizes. INTERPRETATION Our findings indicate that "provider recommendation" and "on-site vaccination" along with other behavioral interventions can be employed to increase vaccination rates globally.
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Affiliation(s)
- Amyn A Malik
- Yale Institute for Global Health, New Haven, CT 06510, USA; Analysis Group, Inc, Boston, MA 02199, USA
| | - Noureen Ahmed
- UT Southwestern Peter O'Donnell Jr. School of Public Health, Dallas, TX 75390, USA
| | - Mehr Shafiq
- Yale Institute for Global Health, New Haven, CT 06510, USA; Columbia University School of Public Health, New York, NY 10032, USA
| | - Jad A Elharake
- Yale Institute for Global Health, New Haven, CT 06510, USA; UT Southwestern Peter O'Donnell Jr. School of Public Health, Dallas, TX 75390, USA; The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Erin James
- Yale Institute for Global Health, New Haven, CT 06510, USA
| | - Kate Nyhan
- Yale University, New Haven, CT 06510, USA
| | - Elliott Paintsil
- Yale Institute for Global Health, New Haven, CT 06510, USA; Columbia University Institute of Human Nutrition, New York, NY 10032, USA
| | | | | | - Fauzia A Malik
- UT Southwestern Peter O'Donnell Jr. School of Public Health, Dallas, TX 75390, USA
| | - Saad B Omer
- UT Southwestern Peter O'Donnell Jr. School of Public Health, Dallas, TX 75390, USA.
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Ducharme J, Correa GC, Reynolds HW, Sharkey AB, Fonner VA, Johri M. Mapping of Pro-Equity Interventions Proposed by Immunisation Programs in Gavi Health Systems Strengthening Grants. Vaccines (Basel) 2023; 11:341. [PMID: 36851218 PMCID: PMC9961887 DOI: 10.3390/vaccines11020341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/17/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Reaching zero-dose (ZD) children, operationally defined as children who have not received a first dose of the diphtheria, tetanus, and pertussis (DTP1) vaccine, is crucial to increase equitable immunisation coverage and access to primary health care. However, little is known about the approaches already taken by countries to improve immunisation equity. We reviewed all Health System Strengthening (HSS) proposals submitted by Gavi-supported countries from 2014 to 2021 inclusively and extracted information on interventions favouring equity. Pro-equity interventions were mapped to an analytical framework representing Gavi 5.0 programmatic guidance on reaching ZD children and missed communities. Data from keyword searches and manual screening were extracted into an Excel database. Open format responses were analysed using inductive and deductive thematic coding. Data analysis was conducted using Excel and R. Of the 56 proposals included, 51 (91%) included at least one pro-equity intervention. The most common interventions were conducting outreach sessions, tailoring the location of service delivery, and partnerships. Many proposals had "bundles" of interventions, most often involving outreach, microplanning and community-level education activities. Nearly half prioritised remote-rural areas and only 30% addressed gender-related barriers to immunisation. The findings can help identify specific interventions on which to focus future evidence syntheses, case studies and implementation research and inform discussions on what may or may not need to change to better reach ZD children and missed communities moving forward.
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Affiliation(s)
- Joelle Ducharme
- Measurement, Evaluation and Learning Department, Gavi, The Vaccine Alliance, 1218 Le Grand-Saconnex, Switzerland
| | - Gustavo Caetano Correa
- Measurement, Evaluation and Learning Department, Gavi, The Vaccine Alliance, 1218 Le Grand-Saconnex, Switzerland
| | - Heidi W. Reynolds
- Measurement, Evaluation and Learning Department, Gavi, The Vaccine Alliance, 1218 Le Grand-Saconnex, Switzerland
| | - Alyssa B. Sharkey
- School of Public and International Affairs, Princeton University, Princeton, NJ 08544, USA
| | | | - Mira Johri
- Carrefour de l’Innovation, Centre de Recherche de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Gestion, D’évaluation, et de Politique de Santé, École de Santé Publique de l’Université de Montréal (ESPUM), Montréal, QC H3N 1X9, Canada
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Xu J, Tang W, Qiu W, Yao Y, Yao N, Zhong J, Zhu X, Wang Q. Effects of mobile APP for immunization on vaccination compliance of migrant children in southwest China: A community trial study. Hum Vaccin Immunother 2022; 18:2135853. [PMID: 36469711 PMCID: PMC9762749 DOI: 10.1080/21645515.2022.2135853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
With the advancement of the "internet plus" action plan in China, the electronic information system and the mobile phone applications (APPs) are widely used in the management of expanding national program of immunization (EPI). To estimate the use of childhood vaccination APP to improve migrants' vaccination knowledge, attitude and practice (KAP), a community trial toward migrant children was carried out in Chongqing, China. Migrant children were divided into two groups, one group was provided with health education and vaccination reminders in manual way and the other group was provided with online health education and vaccination reminders by mobile APP. After seven-month interventions, a total of 196 guardians of migrant children aged 2 months to 2 y participated in the questionnaire survey. There were significant differences between two groups in the awareness of vaccine policy, disposal of adverse reaction and attitude toward vaccination. Few significant differences in vaccination coverage of children ≤12 months between two groups, except 2ndbOPV and 2ndMenA. The timely vaccination rate of children >6 months in the APP group ranged from 37.5% to 68.2%, that was from 0% to 30.5% in the non-APP group (P < .05). Most migrant children above 6 months had vaccination within a month after due day in the APP group, while that was at least 3 months after due day in the non-APP group. The vaccination APP greatly improved migrants' KAP on vaccination. Continuous and systematic intervention by vaccination APP would play a more critical role in the vaccination behaviors of older migrant children.
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Affiliation(s)
- Jiawei Xu
- EPI Department, Chongqing Municipal Center for Disease Control and Prevention, Chongqing, China
| | - Wenge Tang
- EPI Department, Chongqing Municipal Center for Disease Control and Prevention, Chongqing, China
| | - Wei Qiu
- EPI Department, Chongqing Municipal Center for Disease Control and Prevention, Chongqing, China
| | - Yuan Yao
- EPI Department, Jiulongpo District Center for Disease Control and Prevention, Chongqing, China
| | - Ning Yao
- EPI Department, Chongqing Municipal Center for Disease Control and Prevention, Chongqing, China
| | - Jianghong Zhong
- EPI Department, Chongqing Municipal Center for Disease Control and Prevention, Chongqing, China
| | - Xiang Zhu
- EPI Department, Chongqing Municipal Center for Disease Control and Prevention, Chongqing, China
| | - Qing Wang
- EPI Department, Chongqing Municipal Center for Disease Control and Prevention, Chongqing, China,CONTACT Qing Wang EPI Department, Chongqing Municipal Center for Disease Control and Prevention, Chongqing
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Shao W, Chen X, Zheng C, Wang G, Zhang B, Zhang W. Pneumococcal vaccination coverage and willingness in mainland China. Trop Med Int Health 2022; 27:864-872. [PMID: 35942809 DOI: 10.1111/tmi.13809] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To estimate the coverage and willingness of pneumococcal vaccination and further explore the influencing factors of vaccination willingness among people in mainland China. METHODS Literature searches were conducted independently by two researchers in English- and Chinese-language databases from database inception to October 6, 2021. A random-effects meta-analysis model was used to derive summary vaccination coverage and willingness. Predefined subgroup analysis and meta-regression were performed to explore the sources of heterogeneity. RESULTS 97 studies were included in this meta-analysis. The summary vaccination coverage in 76 included studies was 21.7% (95% CI: 17.2 - 26.5%). Subgroup analysis shows that the summary coverage was 29.0% (95% CI, 20.4 - 39.1%) among permanent residents and 20.7% (95% CI, 12.4 - 35.9%) among floating residents. The eastern and central regions presented higher coverage than the western region. Notable differences were observed between the various study populations. 27 studies provided an estimation of vaccination willingness, with a summary willingness of 51.2% (95% CI, 40.4 - 61.9%). In subgroup analysis the summary willingness was 57.9 % (95% CI, 48.3 - 67.2%) in urban areas and 52.3 % (95% CI, 40.8 - 63.8%) in rural areas. Parents with children and people with a history of pneumonia were more willing to be vaccinated than the elderly. Recommendations by family members and physicians, previous pneumococcal and influenza vaccination, perceived vaccination effectiveness and severity of disease and a history of pneumonia contributed to vaccination willingness. CONCLUSIONS Compared to global estimates and to other countries, pneumococcal vaccination coverage and willingness are at a lower level in mainland China. Recommendations for vaccination by family members and doctors, a history of vaccination and the perception of pneumonia and vaccination are associated with greater willingness to be vaccinated. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Weihao Shao
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Xiaorui Chen
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Caifang Zheng
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Gaili Wang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Bowen Zhang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Weidong Zhang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, China
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Adams MW, Sutherland EG, Eckert EL, Saalim K, Reithinger R. Leaving no one behind: targeting mobile and migrant populations with health interventions for disease elimination-a descriptive systematic review. BMC Med 2022; 20:172. [PMID: 35527246 PMCID: PMC9082871 DOI: 10.1186/s12916-022-02365-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 04/04/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Mobile and migrant populations (MMPs) pose a unique challenge to disease elimination campaigns as they are often hard to survey and reach with treatment. While some elimination efforts have had success reaching MMPs, other campaigns are struggling to do so, which may be affecting progress towards disease control and elimination. Therefore, this paper reviews the literature on elimination campaigns targeting MMPs across a selection of elimination diseases-neglected tropical diseases, malaria, trypanosomiasis, polio, smallpox, and rinderpest. METHODS Through a systematic review process following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, a three-person review team identified papers from databases, conference records, and citation searches using inclusion/exclusion criteria. Papers were divided into three key outcome domains during the synthetization process: (1) MMP movement patterns in East Africa including reasons for movement and consequences in terms of health outcomes and healthcare access; (2) MMP contribution to the transmission of disease across all geographies; (3) surveillance methods and treatment interventions used to implement programming in MMPs across all geographies. Experts in the field also provided supplemental information and gray literature to support this review. RESULTS The review identified 103 records which were descriptively analyzed using the outcome domains. The results indicate that in East Africa, there are various motivations for migration from economic opportunity to political unrest to natural disasters. Regardless of motivation, mobile lifestyles affect health service access such that MMPs in East Africa report barriers in accessing healthcare and have limited health knowledge. Often lower service delivery to these populations has resulted in higher disease prevalence. A minority of articles suggest MMPs do not pose challenges to reaching disease control and elimination thresholds. Finally, the literature highlighted surveillance methods (e.g., using satellite imagery or mobile phone data to track movement, participatory mapping, snowball sampling) and intervention strategies (e.g., integration with animal health campaigns, cross-border coordination, alternative mass drug administration [MDA] methods) to implement health interventions in MMPs. CONCLUSIONS Ultimately, the literature reviewed here can inform programmatic decisions as the community attempts to reach these never treated populations. SYSTEMATIC REVIEW REGISTRATION The protocol for this manuscript was registered with the International Prospective Registry of Systematic Reviews (PROSPERO) (No. CRD42021214743).
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Affiliation(s)
- Molly W Adams
- Research Triangle Institute (RTI) International, 701 13th St NW Ste 750, Washington , DC, 20005 USA
| | - Elizabeth G Sutherland
- Research Triangle Institute (RTI) International, 701 13th St NW Ste 750, Washington , DC, 20005 USA
| | - Erin L Eckert
- Research Triangle Institute (RTI) International, 701 13th St NW Ste 750, Washington , DC, 20005 USA
| | - Khalida Saalim
- Research Triangle Institute (RTI) International, 701 13th St NW Ste 750, Washington , DC, 20005 USA
| | - Richard Reithinger
- Research Triangle Institute (RTI) International, 701 13th St NW Ste 750, Washington , DC, 20005 USA
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Decouttere C, De Boeck K, Vandaele N. Advancing sustainable development goals through immunization: a literature review. Global Health 2021; 17:95. [PMID: 34446050 PMCID: PMC8390056 DOI: 10.1186/s12992-021-00745-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 07/23/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Immunization directly impacts health (SDG3) and brings a contribution to 14 out of the 17 Sustainable Development Goals (SDGs), such as ending poverty, reducing hunger, and reducing inequalities. Therefore, immunization is recognized to play a central role in reaching the SDGs, especially in low- and middle-income countries (LMICs). Despite continuous interventions to strengthen immunization systems and to adequately respond to emergency immunization during epidemics, the immunization-related indicators for SDG3 lag behind in sub-Saharan Africa. Especially taking into account the current Covid19 pandemic, the current performance on the connected SDGs is both a cause and a result of this. METHODS We conduct a literature review through a keyword search strategy complemented with handpicking and snowballing from earlier reviews. After title and abstract screening, we conducted a qualitative analysis of key insights and categorized them according to showing the impact of immunization on SDGs, sustainability challenges, and model-based solutions to these challenges. RESULTS We reveal the leveraging mechanisms triggered by immunization and position them vis-à-vis the SDGs, within the framework of Public Health and Planetary Health. Several challenges for sustainable control of vaccine-preventable diseases are identified: access to immunization services, global vaccine availability to LMICs, context-dependent vaccine effectiveness, safe and affordable vaccines, local/regional vaccine production, public-private partnerships, and immunization capacity/capability building. Model-based approaches that support SDG-promoting interventions concerning immunization systems are analyzed in light of the strategic priorities of the Immunization Agenda 2030. CONCLUSIONS In general terms, it can be concluded that relevant future research requires (i) design for system resilience, (ii) transdisciplinary modeling, (iii) connecting interventions in immunization with SDG outcomes, (iv) designing interventions and their implementation simultaneously, (v) offering tailored solutions, and (vi) model coordination and integration of services and partnerships. The research and health community is called upon to join forces to activate existing knowledge, generate new insights and develop decision-supporting tools for Low-and Middle-Income Countries' health authorities and communities to leverage immunization in its transformational role toward successfully meeting the SDGs in 2030.
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Affiliation(s)
- Catherine Decouttere
- KU Leuven, Access-To-Medicines research Center, Naamsestraat 69, Leuven, Belgium
| | - Kim De Boeck
- KU Leuven, Access-To-Medicines research Center, Naamsestraat 69, Leuven, Belgium
| | - Nico Vandaele
- KU Leuven, Access-To-Medicines research Center, Naamsestraat 69, Leuven, Belgium
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Malik MN, Awan MS, Saleem T. Social mobilization campaign to tackle immunization hesitancy in Sargodha and Khushab districts of Pakistan. J Glob Health 2021; 10:021302. [PMID: 33312516 PMCID: PMC7719895 DOI: 10.7189/jogh.10.021302] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Immunization hesitancy is a delay in acceptance or refusal of vaccines despite availability of vaccination services. If people are not engaged appropriately via communication and social mobilization, doubts about the trade-offs between the benefits and potential side effects persist. The objective of this study was to explore strategies for improved social mobilization to reduce immunization hesitancy. Methods Mix of quantitative and qualitative approaches was applied to collect data from a diverse group of respondents in Sargodha and Khushab districts. Quantitative data were collected from 329 community health workers, including vaccinators, lady health workers and lady health supervisors, and school health and nutrition supervisors. In addition, qualitative data were collected from top management of Expanded Programme on Immunization (EPI) through key informant interviews (KIIs) and focus group discussions (FGDs) were conducted with parents. Analysis has been done using SPSS software and detailed transcriptions. Results Advocacy meetings with local influencers, community group sessions, door-to-door visits by community health workers and mosque announcements are considered the most relevant and appropriate interventions for social mobilization. Community Health Workers (CHWs), cognizant of local culture, are being trusted, though optimum performance is achievable with adequate redressal of hesitancy concerns. However, in some cases negative attitudes of people towards immunization hinder trust towards mobilizers or CHWs. Hence, they leverage active participation of local influencers, teachers and health department officials to convince such stubborn parents. Active community involvement through leveraging support from local religious and non-religious influencers in social mobilization activities increases its acceptance. Community engagement is most effective in rural and hard-to-reach areas when community health workers are skilled in interpersonal communication and information education communication. Conclusions Communication committees as oversight mechanism should be established or reactivated to regularly monitor and support mobilization activities through managing affairs like speedy liaison with local administration and local influencers, mobilizers' service related concerns, community-specific hurdles, and deficiencies of awareness-material provision that eventually improves mobilization performance. Resistant community's needs can be redressed through rigorous conduct of men's and women's education sessions by CHWs while giving more time and space to mobilizers to take on board local religious and non-religious influencers to convince conservative/illiterate parents. Higher management should fix policy implementation slippages like training needs assessment of mobilizers and Civil Society Organizations' involvement framework.
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Affiliation(s)
- Muhammad Nauman Malik
- Department of Economics, University of Sargodha, Sargodha, Punjab, Pakistan.,University of Western Australia, Perth, Western Australia, Australia
| | - Masood Sarwar Awan
- Department of Economics, University of Sargodha, Sargodha, Punjab, Pakistan
| | - Tariq Saleem
- District Surveillance Coordinator, Health Department Punjab, Punjab, Pakistan
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Malik MN, Awan MS, Saleem T. Social mobilization campaign to tackle immunization hesitancy in Sargodha and Khushab districts of Pakistan. J Glob Health 2020. [DOI: 10.7189/jogh.10.0201302] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Li J, Yu W, Zhao Z, Zhang L, Gong Q. Measles vaccination among children in border areas of Yunnan Province, Southwest China. PLoS One 2020; 15:e0240733. [PMID: 33085692 PMCID: PMC7577443 DOI: 10.1371/journal.pone.0240733] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 10/01/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Border areas are at high risk of measles epidemics. This study aimed to evaluate the effectiveness of the implementation of the routine two-dose measles containing vaccine (MCV) program in border counties of Southwest China. METHODS Data used in the study were derived from a cross-sectional survey among 1,467 children aged 8 to 84 months from five border counties of Yunnan Province, Southwest China in 2016. The participants were recruited using a multistage sampling method. Primary guardians of the children were interviewed to collect information on vaccination history, socio-economic status, and knowledge about immunization. Both coverage and timely coverage for the first (MCV1) and the second (MCV2) dose of MCV were calculated. The Kaplan-Meier method was performed to estimate the cumulative coverage of MCV, and Log-rank tests were adopted to compare the differences across counties and birth cohorts. Univariate and multivariate logistic regression models were used to investigate the predictors of delayed MCV1 vaccination. RESULTS The coverage for MCV1 and MCV2 were 97.5% and 93.4%, respectively. However, only 63.8% and 84.0% of the children received MCV1 or MCV2 on time. Significant differences in the cumulative coverage were detected across counties and birth cohorts. Results of the multivariate logistic regression analysis indicated that children whose primary guardian knew the schedule of MCV were less likely to receive MCV1 late (OR = 0.63, P<0.01). For the guardians, doctors at vaccination units were the primary and also the most desired source of vaccination information. CONCLUSIONS Although the coverage for MCV is high in border areas of Southwest China, the timeliness of MCV vaccination seems suboptimal. Tailored information from local health professionals may help to reduce untimely vaccination.
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Affiliation(s)
- Jiangrong Li
- Expanded Program on Immunization Department, Yunnan Provincial Center for Disease Control and Prevention, Kunming, China
| | - Wenzhou Yu
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhixian Zhao
- Expanded Program on Immunization Department, Yunnan Provincial Center for Disease Control and Prevention, Kunming, China
| | - Lei Zhang
- Zhaotong Vocational College of Health, Zhaotong, China
| | - Qiongyu Gong
- Expanded Program on Immunization Department, Yunnan Provincial Center for Disease Control and Prevention, Kunming, China
- * E-mail:
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Omoniyi OS, Williams I. Realist Synthesis of the International Theory and Evidence on Strategies to Improve Childhood Vaccination in Low- and Middle-Income Countries: Developing Strategies for the Nigerian Healthcare System. Int J Health Policy Manag 2020; 9:274-285. [PMID: 32613799 PMCID: PMC7444436 DOI: 10.15171/ijhpm.2019.120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 11/12/2019] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Childhood vaccination coverage rates in low- and middle-income countries (LMICs) vary significantly, with some countries achieving higher rates than others. Several attempts have been made in Nigeria to achieve universal vaccination coverage but with limited success. This study aimed to analyse strategies used to improve childhood vaccine access and uptake in LMICs in order to inform strategy development for the Nigerian healthcare system. METHODS A realist synthesis approach was adopted in order to elucidate the contexts and mechanisms wherewith these strategies achieved their aim (or not). Nine databases were searched for relevant articles and 27 articles were included in the study. Programme theories were generated from the included articles, and data extraction was carried out paying particular attention to context, mechanism and outcomes configurations. RESULTS Interventions used in LMICs to improve vaccination coverage were categorised as follows: communication/ educational, reminder-type, incentives, social mobilisation, provider-directed strategies, health service integration and multi-pronged strategies. The strategies that appeared most likely to be effective in the health contexts of contemporary Nigeria include communication and educational interventions; employing informal change agents, and; monitoring and evaluation to strengthen communication. The programme theories for the use of reminders, social mobilisation, staff training and supportive supervision were observed in practice, and these strategies were generally successful within some contexts. By contrast, the use of monetary incentives in Nigeria is not supported by the evidence, although further research and evaluation is required. The integration of other interventions with routine immunisation (RI) to improve uptake was more effective when the perceived value of the other program was high. Adoption of multipronged interventions for hard to reach communities was beneficial. However, caution should be exercised because of varying levels of published evidence in respect of each intervention type and a relative lack of the rich description required to conduct a full realist analysis. CONCLUSION This paper adds to the evidence base on the adaption of strategies to improve vaccine access and uptake to the context of LMICs.
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Affiliation(s)
| | - Iestyn Williams
- Health Services Management Centre, University of Birmingham, Birmingham, UK
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Hu Y, Chen Y, Wang Y, Liang H. Hepatitis B Vaccination among 1999⁻2017 Birth Cohorts in Zhejiang Province: The Determinants Associated with Infant Coverage. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15122915. [PMID: 30572681 PMCID: PMC6313558 DOI: 10.3390/ijerph15122915] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/16/2018] [Accepted: 12/17/2018] [Indexed: 01/29/2023]
Abstract
This study aimed to investigate the coverage of hepatitis B vaccine (Hep B) and its completeness and timeliness for birth cohorts from 1999 to 2017 in Zhejiang province, East China. Demographic characteristics and vaccination records of Hep B of children born from 1 January 1999 to 31 June 2017 were extracted from the Zhejiang provincial immunization information system. The timeliness of the first dose of Hep B (Hep B1) was defined as the proportion of children who received the Hep B1 within 24 h after birth among the target population. The completeness of Hep B was defined as the proportion of children who completed the three-dose series of Hep B before 7 years of age. The demographic characteristics of the target population were described. The coverage of each dose of Hep B, the timeliness of Hep B1, and the completeness of Hep B for each birth cohort were described. A logistic regression model was applied to detect the determinants of the timeliness of Hep B1 and the completeness of Hep B vaccination. The coverage of Hep B1 increased from 90.3% to 98.3%, the coverage of Hep B2 increased from 88.8% to 96.1%, and the coverage of Hep B3 increased from 86.4% to 94.2%. The timeliness of Hep B1 increased from 80.3% to 91.3%. The completeness of Hep B increased from 81.3% to 91.5%. The determinants of timeliness of Hep B1 included children’s delivery place, immigration status, maternal education level, and economic development level of resident area. The determinants of completeness of Hep B included children’s delivery place, immigration status, maternal education level, economic development level of resident area, maternal occupation, and frequency of vaccination service. Zhejiang province had achieved significant improvements in the timely administration of Hep B1 and the completeness of Hep B. To accelerate progress toward additional reductions in the transmission of hepatitis B virus, further efforts need to be focused on improving the timeliness of Hep B1 vaccination and reducing the drop-outs among disadvantaged children with the risk factors identified in this study.
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Affiliation(s)
- Yu Hu
- Institute of Immunization and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310000, China.
| | - Yaping Chen
- Institute of Immunization and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310000, China.
| | - Ying Wang
- Institute of Immunization and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310000, China.
| | - Hui Liang
- Institute of Immunization and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310000, China.
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Hu Y, Chen Y, Wang Y, Liang H. Measuring childhood vaccination acceptance of mother in Zhejiang province, East China. Hum Vaccin Immunother 2018; 15:287-294. [PMID: 30235056 DOI: 10.1080/21645515.2018.1526557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The aim of this study was to evaluate the vaccine hesitancy among mothers and examine risk factors associated with mother's intention to vaccination in Zhejiang province. METHODS A provincial sample of mothers of children aged 24-35 months was surveyed (N = 770) in August, 2017. Demographic information, perception on the past childhood vaccination, knowledge on vaccination, information searches and needs, trust in different institutions on vaccination were collected. Based on the theory of planned behaviour (TPB), attitudes toward vaccination, perceived social support, perceived behavioural control as well as mothers' intention to immunize their child were constructed. Descriptive statistics were generated for all variables. Univariate and multivariate analyses were performed to identify differences between mothers who had strong intentions to immunize their children in future and those with weaker intentions. RESULTS Of the participants, 79.6% had a positive attitudes towards vaccination, 77.5% had a high perceived social support, 63.2% had a high perceived behaviour control and 87.3% strongly intended to have their child vaccinated. Strong intention to vaccination was significantly associated with the positive behavioral attitudes [adjusted odds ratios (AOR) = 3.2, 95% CI: 2.3-5.7], the high perceived social support (AOR = 2.8, 95% CI: 1.8-3.6), the perceived ease of undergoing vaccination (AOR = 2.1, 95% CI: 1.6-3.3), respectively. CONCLUSIONS It was recommended that interventions focused on trust-building, promoting social norms, changing the negative attitude would be effective to enhance the maternal acceptance on vaccination.
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Affiliation(s)
- Yu Hu
- a Zhejiang Center for Disease Control and Prevention , Institute of Immunization and Prevention , Hangzhou , China
| | - Yaping Chen
- a Zhejiang Center for Disease Control and Prevention , Institute of Immunization and Prevention , Hangzhou , China
| | - Ying Wang
- a Zhejiang Center for Disease Control and Prevention , Institute of Immunization and Prevention , Hangzhou , China
| | - Hui Liang
- a Zhejiang Center for Disease Control and Prevention , Institute of Immunization and Prevention , Hangzhou , China
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Interventions to Improve Vaccination Uptake and Cost Effectiveness of Vaccination Strategies in Newly Arrived Migrants in the EU/EEA: A Systematic Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15102065. [PMID: 30241320 PMCID: PMC6210200 DOI: 10.3390/ijerph15102065] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/04/2018] [Accepted: 09/07/2018] [Indexed: 12/28/2022]
Abstract
Newly arrived migrants to the EU/EEA (arrival within the past five years), as well as other migrant groups in the region, might be under-immunised and lack documentation of previous vaccinations, putting them at increased risk of vaccine-preventable diseases circulating in Europe. We therefore performed a systematic review conforming to PRISMA guidelines (PROSPERO CRD42016045798) to explore: (i) interventions that improve vaccine uptake among migrants; and (ii) cost-effectiveness of vaccination strategies among this population. We searched MEDLINE, Embase, CINAHL, and Cochrane Database of Systematic Reviews (CDSR) between 1 January 2006 to 18 June 2018. We included three primary intervention studies performed in the EU/EEA or high-income countries and one cost effectiveness study relevant to vaccinations in migrants. Intervention studies showed small but promising impact only on vaccine uptake with social mobilization/community outreach, planned vaccination programs and education campaigns. Targeting migrants for catch-up vaccination is cost effective for presumptive vaccination for diphtheria, tetanus, and polio, and there was no evidence of benefit of carrying out pre-vaccination serological testing. The cost-effectiveness is sensitive to the seroprevalence and adherence to vaccinations of the migrant. We conclude that scarce but direct EU/EEA data suggest social mobilization, vaccine programs, and education campaigns are promising strategies for migrants, but more research is needed. Research should also study cost effectiveness of strategies. Vaccination of migrants should continue to be a public heath priority in EU/EEA.
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Hu Y, Liang H, Wang Y, Chen Y. Inequities in Childhood Vaccination Coverage in Zhejiang, Province: Evidence from a Decomposition Analysis on Two-Round Surveys. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15092000. [PMID: 30217080 PMCID: PMC6164817 DOI: 10.3390/ijerph15092000] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 09/10/2018] [Accepted: 09/13/2018] [Indexed: 11/20/2022]
Abstract
Objective: The objectives of this study were to determine the degree and risk factors of the inequity in the childhood coverage of full primary immunization (FPI) in Zhejiang province. Method: We used data from two rounds of vaccination coverage surveys among children aged 24–35 months conducted in 2014 and 2017, respectively. The household income per month was used as an index of socioeconomic status for the inequality analysis. The concentration index (CI) was used to quantify the degree of inequality, and the decomposition approach was applied to quantify the contributions from demographic factors to inequality in the coverage of FPI. Results: The coverage rates of FPI were 80.6%, with a CI value of 0.12028 for the 2014 survey, while the coverage rates of FPI were 85.2%, with a CI value of 0.10129 for the 2017 survey. The results of decomposition analysis suggested that 68.2% and 67.1% of the socioeconomic inequality in the coverage of FPI could be explained by the mother’s education level for the 2014 and 2017 survey, respectively. Other risk factors including birth order, ethnic group, mother’s age, maternal employment status, residence, immigration status, GDP per-capita, and the percentage of the total health spending allocated to public health could also explain this inequality. Conclusion: The socioeconomic inequity in the coverage of FPI still remained, although this gap was reduced between 2014 and 2017. Policy recommendations for health interventions on reducing the inequality in the coverage of FPI should be focused on eliminating poverty and women’s illiteracy.
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Affiliation(s)
- Yu Hu
- Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention, Hangzhou 310000, China.
| | - Hui Liang
- Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention, Hangzhou 310000, China.
| | - Ying Wang
- Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention, Hangzhou 310000, China.
| | - Yaping Chen
- Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention, Hangzhou 310000, China.
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Hu Y, Chen Y, Liang H, Wang Y. Routine vaccination coverage of children aged 1-7 years in Zhejiang province, China. Hum Vaccin Immunother 2018; 14:2876-2883. [PMID: 30047821 DOI: 10.1080/21645515.2018.1504523] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
BACKGROUND This study was to evaluate the coverage, completeness and timeliness of routine vaccination among children aged 1-7 years in Zhejiang province. METHODS Demographic information and immunization records of 4613160 children born from Jan 1, 2010 to Dec 31, 2016 were extracted from Zhejiang provincial immunization information system (ZJIIS) on Dec 31, 2017. Vaccination coverage for each vaccine dose and completeness of different vaccine series were calculated by birth cohort, immigration status, and geographic area. The timeliness of vaccine doses scheduled before 12 months of age for the 2016 birth cohort was also examined Results: Coverage of all the vaccine doses scheduled before 12 months of age and its completeness reached the target goal of 90%. The coverage and completeness decreased substantially in vaccinations scheduled after 12 months old, and most of them were below 90%. The coverage and timeliness estimates of migrant children was lower than those of resident children and the coverage of WenZhou (WZ), Zhoushan (ZS) and Lishui (LS) was lower than other cities across all the birth cohorts. Despite high coverage rates for all antigens by age 12 months, there was a very large range of percent of vaccination delay when comparing different antigens scheduled in the first year of life for the 2016 birth cohort. CONCLUSIONS This study demonstrated the success and improvement of immunization program in Zhejiang province, and identified some challenges. Strategies such as assessment, feedback, incentives, and exchange program, reminder/recall activity, home visits, immunization requirement for school's enrollment could be used to reach a higher coverage of the population.
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Affiliation(s)
- Yu Hu
- a Institute of Immunization and Prevention , Zhejiang Center for Disease Control and Prevention , Hangzhou , China
| | - Yaping Chen
- a Institute of Immunization and Prevention , Zhejiang Center for Disease Control and Prevention , Hangzhou , China
| | - Hui Liang
- a Institute of Immunization and Prevention , Zhejiang Center for Disease Control and Prevention , Hangzhou , China
| | - Ying Wang
- a Institute of Immunization and Prevention , Zhejiang Center for Disease Control and Prevention , Hangzhou , China
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Hu Y, Chen Y, Liang H, Wang Y. Analysis of the effects of individual- and community- level predictors on migrant children's primary immunization in Yiwu city, east China. Hum Vaccin Immunother 2018; 14:2239-2247. [PMID: 29792549 DOI: 10.1080/21645515.2018.1467684] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
Abstract
BACKGROUND To evaluate the effects of a wide range of individual- and community-level factors on migrant children's primary immunization. METHODS Migrant children aged 13-24 months (born from 1 June 2013 to 31 May 2014) were surveyed in Yiwu city, in June 2015. Social-demographic factors and vaccination records were collected. Five factors at community-level including community wealth, distance to the nearest immunization clinic, maternal education, antenatal clinic (ANC) visits, and hospital delivery were constructed. The relationship between individual- and community-level factors and a child's vaccination status for Chinese primary immunization were evaluated by logistic regression model and the adjusted odds ratio (AOR) with the p-values and 95% confidence interval (CI) were calculated. RESULTS The community wealth (aOR:1.4; 95% CI:1.1-2.7), the community maternal education (aOR:1.8; 95% CI:1.4-4.5), the community ANC visits (aOR:1.8; 95% CI:1.3-2.8), and the community hospital delivery (aOR:2.2; 95% CI:1.6-4.8) were positively associated with the completeness of primary immunization, while community distance to the nearest immunization clinic was negatively associated with the completeness of primary immunization (aOR:0.7; 95% CI:0.5-0.9). The coverage of completeness of primary immunization was higher among children living in rural areas than those living in urban areas (aOR:1.7; 95% CI: 1.3-3.1). CONCLUSIONS In order to achieve better vaccination coverage among migrant children in Yiwu, as well as to close the gaps and disparities of acceptability and accessibility in childhood vaccination in urban areas, policy makers should design interventions based on the factors addressed in this study.
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Affiliation(s)
- Yu Hu
- a Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention , Hangzhou , China
| | - Yaping Chen
- a Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention , Hangzhou , China
| | - Hui Liang
- a Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention , Hangzhou , China
| | - Ying Wang
- a Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention , Hangzhou , China
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Lukusa LA, Ndze VN, Mbeye NM, Wiysonge CS. A systematic review and meta-analysis of the effects of educating parents on the benefits and schedules of childhood vaccinations in low and middle-income countries. Hum Vaccin Immunother 2018; 14:2058-2068. [PMID: 29580159 PMCID: PMC6149946 DOI: 10.1080/21645515.2018.1457931] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Public health benefits of childhood vaccinations risk being derailed by low vaccination coverage in low and middle-income countries. One reason for the low coverage is poor parental knowledge of the importance of completing vaccination schedules. We therefore assessed the effects on childhood vaccination coverage, of educating parents and other persons assuming the parental role. We prospectively registered the systematic review, published the protocol, and used standard Cochrane methods to collect and synthesise the evidence. We found six eligible randomised trials with 4248 participants. Three trials assessed health-facility based education of mothers on the importance of completing vaccination schedules; immediately after birth and three months later (one study) or during the first vaccination visit (two studies). The other trials assessed community-based education, including information campaigns on the importance of vaccines using audiotaped presentations and leaflet distributions (one study); structured group discussions on benefits and costs of childhood vaccination and local action plans for improving vaccine uptake (one study); and home-based information sessions using graphic cards showing benefits and costs of childhood vaccinations and location of vaccination centres (one study). Combining the data shows that these interventions lead to substantial improvements in childhood vaccination coverage (relative increase 36%, 95% confidence interval 14% to 62%). There was no difference between the effects of community-based and facility-based education. Therefore, education in communities and health facilities on the importance of childhood vaccinations should be integrated into all vaccination programmes in low and middle-income countries; accompanied by robust monitoring of impacts and use of data for action.
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Affiliation(s)
- Lungeni Auguy Lukusa
- a Division of Epidemiology and Biostatistics, Department of Global Health , Faculty of Medicine and Health Sciences, Stellenbosch University , Cape Town , South Africa
| | - Valantine Ngum Ndze
- b Department of Microbiology, Haematology, Parasitology and Infectious Disease , Faculty of Medicine and Biomedical Sciences, University of Yaoundé I , Yaoundé , Cameroon
| | - Nyanyiwe Masingi Mbeye
- a Division of Epidemiology and Biostatistics, Department of Global Health , Faculty of Medicine and Health Sciences, Stellenbosch University , Cape Town , South Africa.,c Cochrane South Africa, South African Medical Research Council , Cape Town , South Africa.,d School of Public Health and Family Medicine , College of Medicine, University of Malawi , Blantyre , Malawi
| | - Charles Shey Wiysonge
- a Division of Epidemiology and Biostatistics, Department of Global Health , Faculty of Medicine and Health Sciences, Stellenbosch University , Cape Town , South Africa.,c Cochrane South Africa, South African Medical Research Council , Cape Town , South Africa.,e Division of Epidemiology and Biostatistics , School of Public Health and Family Medicine, University of Cape Town , Cape Town , South Africa
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Hu Y, Wang Y, Chen Y, Li Q. Determinants of inequality in the up-to-date fully immunization coverage among children aged 24-35 months: Evidence from Zhejiang province, East China. Hum Vaccin Immunother 2017; 13:1902-1907. [PMID: 28604178 DOI: 10.1080/21645515.2017.1327108] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
OBJECTIVE This study aimed to determine the degree and determinants of inequality in up-to-date fully immunization (UTDFI) coverage among children of Zhejiang province, east China. METHOD We used data from the Zhejiang provincial vaccination coverage survey of 2014 and the health outcome was the UTDFI status among children aged 24-35 months. The household income per month was used as an index of socio-economic status for the inequality analysis. The concentration index (CI) was used to quantify the degree of inequality and the decomposition approach was applied to quantify the contributions from demographic factors to inequality in UTDFI coverage. RESULTS The UTDFI coverage was 80.63% and the CI for UTDFI coverage was 0.12028 (95% CI: 0.10852-0.13175), indicating that immunization practice significantly favored children with relatively higher socio-economic status. The results of decomposition analysis suggested that 68.2% of the socio-economic inequality in UTDFI coverage should be explained by the mother's education level. Furthermore, factors such as birth order, ethnic group, maternal employment status, residence, immigration status, GDP per-capital and percentage of public health spending of the total health spending also could explain the disparity in UTDFI coverage. CONCLUSION There exists inequality in UTDFI coverage among the socio-economic disadvantage children. Health interventions of narrowing the socio-economic inequality in UTDFI coverage will benefit from being supplemented with strategies aimed at poverty and illiteracy reduction.
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Affiliation(s)
- Yu Hu
- a Institute of Immunization and Prevention , Zhejiang Provincial Center for Disease Control and Prevention , Hangzhou , Zhejiang , China
| | - Ying Wang
- a Institute of Immunization and Prevention , Zhejiang Provincial Center for Disease Control and Prevention , Hangzhou , Zhejiang , China
| | - Yaping Chen
- a Institute of Immunization and Prevention , Zhejiang Provincial Center for Disease Control and Prevention , Hangzhou , Zhejiang , China
| | - Qian Li
- a Institute of Immunization and Prevention , Zhejiang Provincial Center for Disease Control and Prevention , Hangzhou , Zhejiang , China
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Hu Y, Chen Y, Zhang B. Two-dose seasonal influenza vaccine coverage and timeliness among children aged 6 months through 3 years: An evidence from the 2010-11 to the 2014-15 seasons in Zhejiang province, east China. Hum Vaccin Immunother 2016; 13:75-80. [PMID: 27624854 DOI: 10.1080/21645515.2016.1225640] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVE To evaluate the coverage and timeliness of seasonal influenza vaccine vaccination (SIV) among children aged 6 months to 3 years from the 2010-11 through the 2014-15 seasons. METHODS Children registered in Zhejiang Provincial Immunization Information System (ZJIIS) and needed 2 seasonal influenza vaccine doses in a given season from 2010-11 to 2014-15 were enrolled. Socio-economic information and SIV records of target children were extracted from ZJIIS on 1 January 2016. Any (≥1 dose) and full (2 doses) vaccination coverage by December 1 and March 31 as well as interval between 2 doses were calculated. Trends of coverage over time and determinants on fully vaccination coverage and interval between 2 doses were assessed. RESULTS Full SIV overage by Mar 31 increased from the 2010-11 to the 2014-15 seasons (2.60% vs 2.92%). Less than 1% of children received 2 doses by December 1. The interval between 2 doses among fully vaccinated children decreased over time (2010-11: 68.32 days; 2014-15: 49.51 days; p < 0.05). Age, socio-economic development level of resident areas were inversely associated with full vaccination coverage and resident children had a significantly higher full vaccination coverage. Younger age, resident children, receiving vaccination from higher service frequency clinics and clinics with morning and afternoon sessions were positive determinants of a shorter interval between 2 doses. CONCLUSION Majority of children aged 6 months to 3 years remained at risk of incomplete and delayed SIV. The importance of the 2-dose SIV recommendation needs to be emphasized and effective interventions needs to be implemented to improve the completeness and the timeliness of SIV.
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Affiliation(s)
- Yu Hu
- a Institute of Immunization and Prevention, Zhejiang Provincial Center for Disease Control and Prevention , Hangzhou , Zhejiang , China
| | - Yaping Chen
- b Institute of Immunization and Prevention, Zhejiang Provincial Center for Disease Control and Prevention , Hangzhou , Zhejiang , China
| | - Bing Zhang
- c Institute of Immunization and Prevention, Zhejiang Provincial Center for Disease Control and Prevention , Hangzhou , Zhejiang , China
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Oyo-Ita A, Wiysonge CS, Oringanje C, Nwachukwu CE, Oduwole O, Meremikwu MM. Interventions for improving coverage of childhood immunisation in low- and middle-income countries. Cochrane Database Syst Rev 2016; 7:CD008145. [PMID: 27394698 PMCID: PMC4981642 DOI: 10.1002/14651858.cd008145.pub3] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Immunisation is a powerful public health strategy for improving child survival, not only by directly combating key diseases that kill children but also by providing a platform for other health services. However, each year millions of children worldwide, mostly from low- and middle-income countries (LMICs), do not receive the full series of vaccines on their national routine immunisation schedule. This is an update of the Cochrane review published in 2011 and focuses on interventions for improving childhood immunisation coverage in LMICs. OBJECTIVES To evaluate the effectiveness of intervention strategies to boost and sustain high childhood immunisation coverage in LMICs. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL) 2016, Issue 4, part of The Cochrane Library. www.cochranelibrary.com, including the Cochrane Effective Practice and Organisation of Care (EPOC) Group Specialised Register (searched 12 May 2016); MEDLINE In-Process and Other Non-Indexed Citations, MEDLINE Daily and MEDLINE 1946 to Present, OvidSP (searched 12 May 2016); CINAHL 1981 to present, EbscoHost (searched 12 May 2016); Embase 1980 to 2014 Week 34, OvidSP (searched 2 September 2014); LILACS, VHL (searched 2 September 2014); Sociological Abstracts 1952 - current, ProQuest (searched 2 September 2014). We did a citation search for all included studies in Science Citation Index and Social Sciences Citation Index, 1975 to present; Emerging Sources Citation Index 2015 to present, ISI Web of Science (searched 2 July 2016). We also searched the two Trials Registries: ICTRP and ClinicalTrials.gov (searched 5 July 2016) SELECTION CRITERIA: Eligible studies were randomised controlled trials (RCT), non-RCTs, controlled before-after studies, and interrupted time series conducted in LMICs involving children aged from birth to four years, caregivers, and healthcare providers. DATA COLLECTION AND ANALYSIS We independently screened the search output, reviewed full texts of potentially eligible articles, assessed risk of bias, and extracted data in duplicate; resolving discrepancies by consensus. We then conducted random-effects meta-analyses and used GRADE to assess the certainty of evidence. MAIN RESULTS Fourteen studies (10 cluster RCTs and four individual RCTs) met our inclusion criteria. These were conducted in Georgia (one study), Ghana (one study), Honduras (one study), India (two studies), Mali (one study), Mexico (one study), Nicaragua (one study), Nepal (one study), Pakistan (four studies), and Zimbabwe (one study). One study had an unclear risk of bias, and 13 had high risk of bias. The interventions evaluated in the studies included community-based health education (three studies), facility-based health education (three studies), household incentives (three studies), regular immunisation outreach sessions (one study), home visits (one study), supportive supervision (one study), information campaigns (one study), and integration of immunisation services with intermittent preventive treatment of malaria (one study).We found moderate-certainty evidence that health education at village meetings or at home probably improves coverage with three doses of diphtheria-tetanus-pertussis vaccines (DTP3: risk ratio (RR) 1.68, 95% confidence interval (CI) 1.09 to 2.59). We also found low-certainty evidence that facility-based health education plus redesigned vaccination reminder cards may improve DTP3 coverage (RR 1.50, 95% CI 1.21 to 1.87). Household monetary incentives may have little or no effect on full immunisation coverage (RR 1.05, 95% CI 0.90 to 1.23, low-certainty evidence). Regular immunisation outreach may improve full immunisation coverage (RR 3.09, 95% CI 1.69 to 5.67, low-certainty evidence) which may substantially improve if combined with household incentives (RR 6.66, 95% CI 3.93 to 11.28, low-certainty evidence). Home visits to identify non-vaccinated children and refer them to health clinics may improve uptake of three doses of oral polio vaccine (RR 1.22, 95% CI 1.07 to 1.39, low-certainty evidence). There was low-certainty evidence that integration of immunisation with other services may improve DTP3 coverage (RR 1.92, 95% CI 1.42 to 2.59). AUTHORS' CONCLUSIONS Providing parents and other community members with information on immunisation, health education at facilities in combination with redesigned immunisation reminder cards, regular immunisation outreach with and without household incentives, home visits, and integration of immunisation with other services may improve childhood immunisation coverage in LMIC. Most of the evidence was of low certainty, which implies a high likelihood that the true effect of the interventions will be substantially different. There is thus a need for further well-conducted RCTs to assess the effects of interventions for improving childhood immunisation coverage in LMICs.
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Affiliation(s)
- Angela Oyo-Ita
- Department of Community Health, University of Calabar Teaching HospitalCalabar, Nigeria
| | - Charles S Wiysonge
- Centre for Evidence-based Health Care, Faculty of Medicine and Health Sciences, Stellenbosch UniversityCape Town, South Africa
- Cochrane South Africa, South African Medical Research CouncilCape Town, South Africa
| | - Chioma Oringanje
- GIDP Entomology and Insect Science, University of TucsonTucson, USA
| | - Chukwuemeka E Nwachukwu
- GIDP Entomology and Insect Science, Excellence & Friends Management Consult (EFMC)Abuja, Nigeria
| | - Olabisi Oduwole
- Institute of Tropical Diseases Research and Prevention, University of Calabar Teaching Hospital (ITDR/P)Calabar, Nigeria
| | - Martin M Meremikwu
- Department of Paediatrics, University of Calabar Teaching HospitalCalabar, Nigeria
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