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Saitoh A, Shobugawa Y, Sato I, Yonekura Y, Kawabata A, Saitoh A, Saito R. Pilot Study of Evaluating Attitudes toward Childhood Immunization among Healthcare Workers in Japan. Vaccines (Basel) 2022; 10:vaccines10071055. [PMID: 35891220 PMCID: PMC9318564 DOI: 10.3390/vaccines10071055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 01/27/2023] Open
Abstract
Providing appropriate immunization information during the perinatal period is important for improving immunization rates among infants and children; however, the distribution of immunization information by healthcare workers (HCWs) is not standardized in Japan. We investigated HCWs’ attitudes toward childhood immunization and factors related to vaccine hesitancy. We conducted a cross-sectional descriptive survey of HCWs involved in childhood immunization in Niigata City, Japan, from November 2017 to January 2018. We assessed contextual, individual and group, and vaccine/vaccination-specific influences. Of 290 HCWs, 139 (47.9%) returned completed questionnaires. Most HCWs (87/139, 64.9%) reported providing immunization information verbally to parents; 51/87 (58.6%) spent fewer than five minutes doing so. Pediatricians provided vaccines based on the parents’ best interest, whereas public health nurses and midwives emphasized government policy. Nurses had greater hesitancy related to personal perceptions and social/peer factors than pediatricians (p < 0.001). Nurses were significantly more likely than pediatricians to suggest that children receive more shots than necessary (p < 0.01). Nurses tended to have more negative attitudes toward vaccination and little awareness of immunization promotion compared to pediatricians. Thus, all HCWs involved in childhood immunization should receive sufficient information to provide timely and appropriate immunization to infants and children.
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Affiliation(s)
- Aya Saitoh
- Department of Fundamental Nursing, Graduate School of Health Sciences, Niigata University, Niigata 951-8518, Japan
- Correspondence: ; Tel.: +81-25-227-0967
| | - Yugo Shobugawa
- Department of Active Ageing, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan;
| | - Isamu Sato
- Yoiko-no Shounika Sato, Niigata 950-0983, Japan;
| | - Yuki Yonekura
- Department of Nursing Informatics, Graduate School of Nursing Science, St. Luke’s International University, Tokyo 104-0044, Japan;
| | - Ai Kawabata
- Graduate School of Nursing, Yamanashi University, Yamanashi 400-8510, Japan;
| | - Akihiko Saitoh
- Department of Pediatrics, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan;
| | - Reiko Saito
- Division of International Health, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan;
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Wang L, Liang Y, Zhang X, Yang J. Vaccine attitudes among young adults in Asia: a systematic review. Hum Vaccin Immunother 2021; 17:1142-1155. [PMID: 33054512 DOI: 10.1080/21645515.2020.1810486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Introduction: Young adults may be facing growing threats from vaccine-preventable diseases (VPDs). However, vaccination of young adults may not have drawn adequate attention. In Asia, adensely populated region with ahigh proportion of low-income countries, VPDs impose more of an economic and social burden than in western countries. However, knowledge about attitudes toward vaccines among young Asians is limited. This study aims to fill that gap by describing attitudes toward vaccines and how well they are accepted among young Asian adults through asystematic review of relevant Chinese and English publications.Methods: A three-stage searching strategy was adopted to identify eligible studies published during 2009-2019 according to the selection criteria, resulting in 68 articles being included.Results: The review finds that vaccination coverage among young Asians is generally lower than among their western peers, and there is a lack of relevant study in many Asian countries. Factors influencing young Asians' attitudes toward vaccines are categorized into contextual level, individual and social level, and vaccine-specific level.Conclusion: These suggest that there is a need to strengthen young adults' vaccination programs and to promote vaccine-related information and government.
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Affiliation(s)
- Li Wang
- School of Health Services Management, Anhui Medical University, Hefei, China.,NHC Key Laboratory of Health Economics and Policy Research, Shandong University, Jinan, China
| | - Yuanyuan Liang
- School of Health Services Management, Anhui Medical University, Hefei, China
| | - Xuan Zhang
- National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jinxia Yang
- School of Health Services Management, Anhui Medical University, Hefei, China
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Saitoh A, Saitoh A, Katsuta T, Mine M, Kamiya H, Miyairi I, Ishiwada N, Oshiro M, Kira R, Shimizu N, Suga S, Tsugawa T, Fujioka M, Miyazaki C, Morioka I, Korematsu S, Nakano T, Tanaka-Taya K, Yoshikawa T, Iwata S, Kusuhara K, Azuma H, Moriuchi H, Okabe N, Hosoya M, Tsutsumi H, Okada K. Effect of a vaccine information statement (VIS) on immunization status and parental knowledge, attitudes, and beliefs regarding infant immunization in Japan. Vaccine 2020; 38:8049-8054. [PMID: 33139133 DOI: 10.1016/j.vaccine.2020.10.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 10/07/2020] [Accepted: 10/12/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND Because of the overabundance of vaccination information on the internet, in the media, and on social media, providing clear and correct information on immunization is critical for parental decision-making. In 2018, the Japan Pediatric Society created and distributed a Vaccine Information Statement (VIS) to provide appropriate immunization information to caregivers. The objectives of the present study were to evaluate the effect of the VIS on immunization rates, adherence to schedule, and parental understanding of immunization in Japan. METHODS This cross-sectional study was conducted at 18 centers in 2 prefectures in Japan. Caregivers were assigned to an intervention group, which received the VIS and a questionnaire when their child reached the age of 1 month, and a control group, which received only the questionnaire. Using the self-reported questionnaires, we evaluated vaccination rates and schedule adherence at age 2 months, and parental knowledge, attitudes, and beliefs regarding immunization. Three months later, the questionnaires were returned, and the findings were compared between the 2 groups. RESULTS We contacted 422 and 428 persons in the intervention and control groups, respectively, and 111/422 (26.3%) and 119/428 (27.8%) returned the surveys. Vaccination rates and adherence rates for the first dose of 4 recommended vaccines did not differ significantly (P > 0.25); however, there were some positive effects on items related to vaccine knowledge (P = 0.03), perceived benefits (P = 0.02), perceived barriers (P < 0.001), and perceived behavioral control (P = 0.01). CONCLUSION The VIS improved parent comprehension of infant immunization. Future studies should examine if the effects of such an intervention persist and affect vaccine uptake throughout childhood.
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Affiliation(s)
- Aya Saitoh
- Department of Nursing, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
| | - Akihiko Saitoh
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Tomohiro Katsuta
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Mahito Mine
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Mine Pediatric Clinic, Saitama, Japan
| | - Hajime Kamiya
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Isao Miyairi
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Division of Infectious Diseases, National Center for Child Health and Development, Tokyo, Japan
| | - Naruhiko Ishiwada
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Infectious Diseases, Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Makoto Oshiro
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Neonatology, Japanese Red Cross Nagoya Daiichi Hospital, Aichi, Japan
| | - Ryutaro Kira
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatric Neurology, Fukuoka Children's Hospital, Fukuoka, Japan
| | - Naoki Shimizu
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Shigeru Suga
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Infectious Disease Center and Department of Clinical Research, National Hospital Organization Mie Hospital, Mie, Japan
| | - Takeshi Tsugawa
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, Sapporo Medical University School of Medicine, Hokkaido, Japan
| | - Masashi Fujioka
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Fujioka Pediatrics, Osaka, Japan
| | - Chiaki Miyazaki
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Fukuoka Welfare Center for the Disabled, Fukuoka, Japan
| | - Ichiro Morioka
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics and Child Health, Nihon University School of Medicine, Tokyo, Japan
| | - Seigo Korematsu
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, University Faculty of Medicine, Oita, Japan
| | - Takashi Nakano
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, Kawasaki Medical School, Okayama, Japan
| | - Keiko Tanaka-Taya
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tetsushi Yoshikawa
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, Fujita Health University School of Medicine, Aichi, Japan
| | - Satoshi Iwata
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Infectious Diseases, Keio University School of Medicine, Tokyo, Japan
| | - Koichi Kusuhara
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Hiroshi Azuma
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, Asahikawa Medical University, Hokkaido, Japan
| | - Hiroyuki Moriuchi
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, Nagasaki University, Nagasaki, Japan
| | - Nobuhiko Okabe
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Kawasaki City Institute for Public Health, Kanagawa, Japan
| | - Mitsuaki Hosoya
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, Fukushima Medical University, Fukushima, Japan
| | - Hiroyuki Tsutsumi
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Department of Pediatrics, Sapporo Medical University School of Medicine, Hokkaido, Japan
| | - Kenji Okada
- The Committee on Immunization and Infectious Diseases, Japan Pediatric Society, Japan; Division of Basic Nursing, Fukuoka Nursing College, Fukuoka, Japan
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An Overview of Coverage of BCG Vaccination and Its Determinants Based on Data from the Coverage Survey in Zhejiang Province. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15061155. [PMID: 29865207 PMCID: PMC6025410 DOI: 10.3390/ijerph15061155] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 11/17/2022]
Abstract
To assess the Bacille Calmette-Guérin (BCG) vaccination coverage in Zhejiang province and to investigate predictors of the BCG vaccination, we used data from the 2017 Zhejiang provincial coverage survey. Demographic and immunization data on the selected children, their mothers, and their families were also collected by using a pre-tested questionnaire. BCG scars were verified among children who were available at the moment of survey. Coverage of BCG and other expanded program on immunization (EPI) vaccines scheduled before the first year of life was calculated. BCG coverage through the scar assessment and timeliness of BCG were also presented. Multivariate analyses of the predictors associated with the BCG vaccination and its timeliness were conducted separately. In total, 1393 children agreed to participate in the survey and presented the immunization cards. Of them, the coverage of BCG was 92.0% and 88.3% received the BCG within the first 28 days after birth. Besides this, 1282 out of the 1393 children were screened for the BCG scars and 97.1% of them had developed the scars. The multivariable logistic regression analyses indicated that hospital delivery, higher maternal education, a mother with no job, and a resident child were positively associated with the higher BCG vaccination coverage and its timely administrations. BCG coverage was optimal and it was administered in a timely manner. The majority of children vaccinated with BCG developed scars. Tailored interventions should be more greatly focused on and targeted to children with the risk factors identified in this study.
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Hu Y, Chen Y, Wang Y, Liang H. Knowledge, Attitude and Practice of Pregnant Women towards Varicella and Their Children's Varicella Vaccination: Evidence from Three Distrcits in Zhejiang Province, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14101110. [PMID: 28946647 PMCID: PMC5664611 DOI: 10.3390/ijerph14101110] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 09/15/2017] [Accepted: 09/22/2017] [Indexed: 11/16/2022]
Abstract
Background: The objectives of this study were to examine the knowledge, attitudes and practice (KAP) towards varicella and varicella vaccine (VarV) vaccination among pregnant women in three distrcits in Zhejiang Province, China. Methods: From 1 January to 31 March 2014, pregnant women with ≥12 gestational weeks were recruited and received a self-administrated questionnaire. The first dose of VarV (VarV1) vaccination status of children from present pregnancy was extracted at 24 months of age from Zhejiang provincial immunization information system (ZJIIS). Three variables was defined as the main outcomes, which included: (1) knowing about both the availability of VarV and the number of doses required; (2) positive attitude towards the utility of varicella vaccination; (3) the vaccination coverage of VarV1, which meant the proportion of children having received the VarV1. Counts and proportions were used to describe the socio-demographic characteristics of study participants, and their relationship with study outcomes were tested using chi-square tests in univariate analysis and logistic regression in multivariable analysis. Results: A total of 629 pregnant women participated in this study. The majority of the participants (68.0%) answered correctly about the transmission route of varicella. The proportion of participants who heard about varicella vaccination was 76.5% and 66.8% knew that VarV was currently available. Only 13.5% of the participants answered correctly that the complete VarV series needed two doses. Age, immigration status, education level, household income, and number of children of the pregnant women were significant predictors of the KAP regarding the VarV vaccination. Conclusions: The current survey indicated that optimal KAP levels and coverage on VarV vaccination were observed in three districts of Zhejiang Province. Health education programs on varicella and VarV vaccination directed towards both pre-natal and post-natal women are needed, which will result in a better attitude on vaccination of VarV and in a high coverage of VarV.
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Affiliation(s)
- Yu Hu
- Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention, No. 3399 Binsheng Road, Binjiang District, Hangzhou 310051, China.
| | - Yaping Chen
- Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention, No. 3399 Binsheng Road, Binjiang District, Hangzhou 310051, China.
| | - Ying Wang
- Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention, No. 3399 Binsheng Road, Binjiang District, Hangzhou 310051, China.
| | - Hui Liang
- Institute of Immunization and Prevention, Zhejiang Center for Disease Control and Prevention, No. 3399 Binsheng Road, Binjiang District, Hangzhou 310051, China.
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Veerasingam P, Grant CC, Chelimo C, Philipson K, Gilchrist CA, Berry S, Carr PA, Camargo CA, Morton S. Vaccine Education During Pregnancy and Timeliness of Infant Immunization. Pediatrics 2017; 140:peds.2016-3727. [PMID: 28821625 DOI: 10.1542/peds.2016-3727] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/01/2017] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Pregnant women routinely receive information in support of or opposing infant immunization. We aimed to describe immunization information sources of future mothers' and determine if receiving immunization information is associated with infant immunization timeliness. METHODS We analyzed data from a child cohort born 2009-2010 in New Zealand. Pregnant women (N = 6822) at a median gestation of 39 weeks described sources of information encouraging or discouraging infant immunization. Immunizations received by cohort infants were determined through linkage with the National Immunization Register (n = 6682 of 6853 [98%]). Independent associations of immunization information received with immunization timeliness were described by using adjusted odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Immunization information sources were described by 6182 of 6822 (91%) women. Of these, 2416 (39%) received information encouraging immunization, 846 (14%) received discouraging information, and 565 (9%) received both encouraging and discouraging information. Compared with infants of women who received no immunization information (71% immunized on-time), infants of women who received discouraging information only (57% immunized on time, OR = 0.49, 95% CI 0.38-0.64) or encouraging and discouraging information (61% immunized on time, OR = 0.51, 95% CI 0.42-0.63) were at decreased odds of receiving all immunizations on time. Receipt of encouraging information only was not associated with infant immunization timeliness (73% immunized on time, OR = 1.00, 95% CI 0.87-1.15). CONCLUSIONS Receipt, during pregnancy, of information against immunization was associated with delayed infant immunization regardless of receipt of information supporting immunization. In contrast, receipt of encouraging information is not associated with infant immunization timeliness.
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Affiliation(s)
- Priya Veerasingam
- General Paediatrics, Starship Children's Hospital, Auckland, New Zealand
| | - Cameron C Grant
- General Paediatrics, Starship Children's Hospital, Auckland, New Zealand; .,Growing Up in New Zealand.,Center for Longitudinal Research - He Ara ki Mua, and.,Department of Paediatrics, Child and Youth Health, The University of Auckland, Auckland, New Zealand; and
| | - Carol Chelimo
- Growing Up in New Zealand.,Center for Longitudinal Research - He Ara ki Mua, and.,Department of Paediatrics, Child and Youth Health, The University of Auckland, Auckland, New Zealand; and
| | - Kathryn Philipson
- Department of Paediatrics, Child and Youth Health, The University of Auckland, Auckland, New Zealand; and
| | - Catherine A Gilchrist
- Department of Paediatrics, Child and Youth Health, The University of Auckland, Auckland, New Zealand; and
| | - Sarah Berry
- Growing Up in New Zealand.,Center for Longitudinal Research - He Ara ki Mua, and
| | - Polly Atatoa Carr
- Growing Up in New Zealand.,Center for Longitudinal Research - He Ara ki Mua, and
| | - Carlos A Camargo
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Harvard University, Boston, Massachusetts
| | - Susan Morton
- Growing Up in New Zealand.,Center for Longitudinal Research - He Ara ki Mua, and
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Saitoh A, Saitoh A, Sato I, Shinozaki T, Kamiya H, Nagata S. Effect of stepwise perinatal immunization education: A cluster-randomized controlled trial. Vaccine 2017; 35:1645-1651. [PMID: 28222999 DOI: 10.1016/j.vaccine.2017.01.069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/20/2017] [Accepted: 01/27/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Perinatal immunization education is important for improving the immunization outcomes of infants; however, the content of educational materials used at each perinatal period has not been carefully evaluated. We hypothesized that stepwise education offered at different perinatal periods would improve infant immunization status and enhance maternal immunization knowledge. METHODS In this cluster-randomized controlled trial, pregnant women were recruited from nine obstetric sites in Niigata, Japan. The intervention group received a stepwise, interactive education intervention (prenatally, postnatally, and 1month after birth). The control group received a leaflet containing general information on immunization. Infant immunization status was evaluated at 6months of age, and maternal immunization knowledge was evaluated by a written survey after each intervention. RESULTS Among 188 study participants, 151 (80.3%) replied to the final post-intervention survey. At 6months of age, the percentage of children who completed three doses of inactivated polio, diphtheria, tetanus toxoid, and acellular pertussis (DTaP-IPV) vaccine was higher in the intervention group than in the control (p=0.04); however, no differences between groups were observed for the Haemophilus influenzae type b (Hib) (p=0.67) or 13-valent pneumococcal conjugate (PCV13) vaccines (p=0.20). The duration to the completion of the third dose of the DTaP-IPV, Hib, and PCV13 vaccines was shorter in the intervention group than in the control (p=0.03, p<0.01, and p<0.01, respectively). Furthermore, maternal knowledge scores exhibited significantly greater improvement in the intervention group over time compared with those of the control group (p=0.02). CONCLUSIONS Stepwise perinatal immunization education improved immunization schedule adherence for required vaccines and improved maternal immunization knowledge.
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Affiliation(s)
- Aya Saitoh
- Department of Community Health Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Akihiko Saitoh
- Department of Pediatrics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | | | - Tomohiro Shinozaki
- Department of Biostatistics, School of Public Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hajime Kamiya
- Infectious Disease Surveillance Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Satoko Nagata
- Department of Community Health Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Shono A, Kondo M. Mothers' preferences regarding new combination vaccines for their children in Japan, 2014. Hum Vaccin Immunother 2016; 13:766-771. [PMID: 27905819 DOI: 10.1080/21645515.2016.1255387] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
A number of new vaccines to prevent childhood diseases have been introduced globally over the last few decades. Only four combination vaccines are currently available in Japan, DTaP/sIPV, DTaP, DT, and MR, leading to complex infant vaccine scheduling. This study aims to investigate mothers' preferences with respect to combination vaccines for their children, should new combination vaccines become available that have not yet been launched in Japan or that will be developed in the future. We conducted a web-based, cross-sectional survey of 1,243 mothers who had at least one child between 2 months and 3 y of age. Mothers were recruited from an online survey panel of registered users. Their preferences were elicited using discrete choice experiments, the analyzed main effects model, and interactions using a mixed logit model. Mothers showed a preference for vaccines that prevented multiple diseases, had fewer injections per doctor visit, lower price, and lower risk of adverse events. Respondents valued a reduced risk of adverse events the most among all attributes in this study. The estimated monetary value of the willingness to pay for a 1% reduction in the risk of adverse events was ¥ 92,557 ($ 907). Therefore, if new combination vaccines are introduced, the risk of adverse events after vaccination is an especially important factor for mothers. While the safety of the vaccines themselves is required, health professionals should also inform mothers about the benefits and risks of vaccination, to allay mothers' concerns about vaccine safety.
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Affiliation(s)
- Aiko Shono
- a Department of Public Health and Epidemiology , Faculty of Pharmaceutical Sciences, Meiji Pharmaceutical University , Noshio, Kiyose, Tokyo , Japan
| | - Masahide Kondo
- b Department of Health Care Policy and Health Economics , Faculty of Medicine, University of Tsukuba, Tennoudai , Tsukuba, Ibaraki , Japan
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