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Sakanishi Y, Takeuchi J, Suganaga R, Nakayama K, Nishioka Y, Chiba H, Kishi T, Machino A, Mastumura M, Okada T, Suzuki T. Association between administration or recommendation of the human papillomavirus vaccine and primary care physicians' knowledge about vaccination during proactive recommendation suspension: a nationwide cross-sectional study in Japan. BMJ Open 2023; 13:e074305. [PMID: 37993154 PMCID: PMC10668282 DOI: 10.1136/bmjopen-2023-074305] [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] [Received: 04/04/2023] [Accepted: 11/07/2023] [Indexed: 11/24/2023] Open
Abstract
OBJECTIVE The Japanese government suspended the proactive recommendation of the human papillomavirus vaccine (HPVv) in 2013, and the vaccination rate of HPVv declined to <1% during 2014-2015. Previous studies have shown that the recommendation by a physician affects a recipient's decision to receive a vaccine, and physicians' accurate knowledge about vaccination is important to increase vaccine administration. This study aimed to evaluate the association between physicians' knowledge of vaccination and the administration or recommendation of HPVv by primary care physicians (PCPs) in the absence of proactive recommendations from the Japanese government. DESIGN Cross-sectional study analysed data obtained through a web-based, self-administered questionnaire survey. SETTING The questionnaire was distributed to Japan Primary Care Association (JPCA) members. PARTICIPANTS JPCA members who were physicians and on the official JPCA mailing list (n=5395) were included. PRIMARY AND SECONDARY OUTCOME MEASURES The primary and secondary outcomes were the administration and recommendation of HPVv, respectively, by PCPs. The association between PCPs' knowledge regarding vaccination and each outcome was determined based on their background and vaccination quiz scores and a logistic regression analysis to estimate the adjusted ORs (AORs). RESULTS We received responses from 1084 PCPs and included 981 of them in the analysis. PCPs with a higher score on the vaccination quiz were significantly more likely to administer the HPVv for routine and voluntary vaccination (AOR 2.28, 95% CI 1.58 to 3.28; AOR 2.71, 95% CI 1.81 to 4.04, respectively) and recommend the HPVv for routine and voluntary vaccination than PCPs with a lower score (AOR 2.17, 95% CI 1.62 to 2.92; AOR 1.88, 95% CI 1.32 to 2.67, respectively). CONCLUSIONS These results suggest that providing accurate knowledge regarding vaccination to PCPs may improve their administration and recommendation of HPVv, even in the absence of active government recommendations.
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Affiliation(s)
- Yuta Sakanishi
- Sakanishi Internal Medicine and Pediatrics Clinic, Omuta, Fukuoka, Japan
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
| | - Jiro Takeuchi
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Institute for Clinical and Translational Science, Nara Medical University, Kashihara, Nara, Japan
| | - Rei Suganaga
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Tessyoukai Kameda Family Clinic Tateyama, Tateyama, Japan
| | - Kuniko Nakayama
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- My family Clinic Gamagori, Gamagori, Japan
| | - Yosuke Nishioka
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Nishioka Memorial Central Clinic, Shima, Japan
| | - Hiroshi Chiba
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Family Medical Practice Hanoi, Hanoi, Viet Nam
| | - Tomomi Kishi
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Japan Baptist Hospital, Kyoto, Japan
| | | | - Mami Mastumura
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Department of Preventive Services, School of Public Health, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tadao Okada
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Tessyoukai Kameda Family Clinic Tateyama, Tateyama, Japan
| | - Tomio Suzuki
- Committee for Infectious Diseases, Vaccine Team, Japan Primary Care Association, Tokyo, Japan
- Department of General Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
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Knowledge, attitudes and behaviors of family physicians about childhood vaccinations that are not in the routine vaccination schedule: a cross-sectional study. Prim Health Care Res Dev 2023; 24:e2. [PMID: 36617853 PMCID: PMC9884530 DOI: 10.1017/s1463423622000688] [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] [Indexed: 01/10/2023] Open
Abstract
AIM In our country, there are childhood vaccinations that are not included in the routine vaccination schedule and that families have to buy and have for a fee. In addition to income level, family physicians' recommendations also play a major role in getting these vaccines.Our study was planned to determine the level of knowledge, attitudes and behaviors of family physicians about rotavirus, HPV and meningococcal vaccines, which are not included in the routine vaccination scheme of the Ministry of Health. MATERIALS AND METHODS Our cross-sectional and descriptive study was carried out between May and July 2019. The population of our study consists of approximately 30 000 family physicians working as Family Physicians in Turkey. When the sample size is calculated with 5% margin of error and 95% confidence interval, it turns out to be 381. A 15-question questionnaire prepared by scanning the literature and including socio-demographic characteristics was presented to the participants. The Likert scale, which includes 12 questions about rotavirus, meningococcus, HPV and vaccines developed for these microorganisms, was administered to physicians either face-to-face or via the internet. In our study, the statistical significance level was accepted as P < 0.05, and the SPSS statistical package program was used in the calculations. RESULTS 81 Research Assistants, 62 Family Medicine Specialists and 234 Family Physicians participated in our study, and the participants were determined by simple random sampling method. The mean age of the participating physicians was 37.96 ± 9.3 (min: 25 and max: 68). 50.9% of the physicians were women, 79.8% were married, 85.1% were in the city center, and 62.1% were practicing family medicine as general practitioners. 74.82% of the participating physicians recommend rotavirus and 56.2% HPV vaccines to their patients. 10.6% (40 people) of the physicians participating in our study did not recommend any of the rotavirus, HPV, meningococcal, influenza and adult pertussis vaccines to their patients. In the evaluation of the reason for this, 58.7% (27 people) of physicians who did not recommend special vaccines state that they did not recommend vaccines because they are not included in the routine vaccination schedule of the Ministry of Health. Another important reason was that the vaccines are paid (30.4%, 14 people). To the question of having sufficient information about special vaccines that are not included in the routine vaccination schedule, 26% of the participants stated that they have sufficient knowledge, and 56.5% stated that they have partial knowledge. The Likert knowledge questions total score of those who recommended at least one vaccine to their patients was significantly higher than those who did not recommend it at all. Likert knowledge questions total score of those who had at least one vaccination was significantly higher than those who never had it (P = 0.001). CONCLUSION In general, as the level of knowledge about private vaccines decreases, the rates of self-vaccination, recommending it to their patients, and asking it to be included in the national vaccine schedule decrease. For this reason, increasing the knowledge of physicians about vaccines not included in the national vaccination schedule will contribute to the dissemination of vaccines, thus increasing immunity and reducing mortality and morbidity.
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Takeuchi J, Sakanishi Y, Okada T, Nakayama K, Chiba H, Suganaga R, Nishioka Y, Kishi T, Suzuki T. Factors associated between behavior of administrating or recommending mumps vaccine and primary care physicians' knowledge about vaccination: A nationwide cross-sectional study in Japan. J Gen Fam Med 2022; 23:9-18. [PMID: 35004105 PMCID: PMC8721331 DOI: 10.1002/jgf2.471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 05/20/2021] [Accepted: 05/26/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In Japan, the mumps-containing vaccine was withdrawn from routine vaccination in 1993, and it became a voluntary vaccination. This study aimed to evaluate the association between the physicians' knowledge about vaccinations and the administration or recommendation of the mumps vaccine. METHODS We conducted a nationwide cross-sectional study targeting primary care physicians (PCPs) in Japan. We used a web-based self-administered questionnaire by Preventive Medicine and Health Promotion Committee Vaccine Team, the Japan Primary Care Association (JPCA), from March to June in 2019. The outcome of the study was the association between PCPs' knowledge about vaccine and the administration or recommendation of mumps vaccine. We obtained the information on background, subsidies of mumps vaccination for children from the local government, and vaccination quiz scores. We performed logistic regression analysis to estimate the odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Among 10,470 PCPs in JPCA, 5075 were excluded. We received responses from 1084 PCPs (20.1%) and enrolled 981 participants in the analysis. PCPs with a higher score on the vaccination quizzes were significantly more likely to administrate the mumps vaccine for adults (adjusted odds ratio [AOR] 1.93, 95% CI 1.45-2.59, p < 0.001) and recommend mumps vaccine to adults than PCPs with a lower score (AOR 1.78, 95% CI 1.33-2.40, p < 0.001). CONCLUSIONS We revealed an association between the administration or recommendation of mumps vaccine and PCPs' better vaccination knowledge.
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Affiliation(s)
- Jiro Takeuchi
- Clinical EpidemiologyHyogo College of MedicineNishinomiyaJapan
| | - Yuta Sakanishi
- Sakanishi Internal Medicine and Pediatrics ClinicOmutaJapan
| | - Tadao Okada
- Tessyoukai Kameda Family Clinic TateyamaTateyamaJapan
| | | | | | - Rei Suganaga
- Tessyoukai Kameda Family Clinic TateyamaTateyamaJapan
| | | | | | - Tomio Suzuki
- Department of General MedicineOsaka Medical and Pharmaceutical UniversityTakatsukiJapan
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