Development and psychometric properties of the public attitude towards vaccination scale - Health belief model

Vaccination status among children in an urban area and its association with risk factors and some parent health practices: A cross-sectional study

OBJECTIVE

The study aims to determine the vaccination status of children and evaluate the relationship between vaccination rates, vaccine attitudes, and some parental health practices.

DESIGN AND METHODS

This cross-sectional study was conducted with 674 mothers. Data were collected using a survey evaluating vaccine characteristics, some infant health practices, and The Public Attitude Toward Vaccination Scale-Health Belief Model. Chi-square test, independent samples t-test, and logistic regression analysis were used.

RESULTS

80.2% of children were fully vaccinated. The rate of non or under-vaccination was higher in the group that did not regularly undergo follow-up for 0-2-year-old children, did not fully have health screenings, did not use vitamin D and iron supplements, and used alternative medicine. Moreover, the duration of breast milk feeding, the transition to supplementary food, and the duration of vitamin D use in the non-fully vaccinated group were lower than in the fully vaccinated group (p < .05). The increase in maternal education period and severity and benefit attitude scores of vaccine attitude were the factors that decreased the rate of non-fully vaccination. The increase in barrier scores toward vaccines increased the rate of non or under-vaccination.

CONCLUSION

Mothers who have negative attitudes toward vaccination have negative behaviors in health practices and screenings on infant/child health.

A psychometric assessment of a novel scale for evaluating vaccination attitudes amidst a major public health crisis

Despite abundant scientific evidence supporting immunization benefits, vaccine hesitancy remains a significant global health concern, particularly during public health crises. Exploring public attitudes towards vaccination is crucial. This study aimed to develop and validate a tailored Public Vaccination Attitudes Scale specifically under the unique circumstances of a public health crisis. A psychometric evaluation was conducted using a cross-sectional study during the peak of a major public health crisis. The scale was developed and its psychometric properties validated using three approaches: (1) generating the item pool through literature research and focus group discussions; (2) assessing the items through expert consultation; and (3) evaluating construct validity, content validity, and internal consistency reliability through exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Data from a total of 3921 respondents were randomly divided into two subsets, one for EFA (n = 1935) and the other for CFA (n = 1986). A 22-item draft scale with five factors was created after literature research and focus group discussion. The content validity of this scale ranged between 0.88 and 1.00. EFA showed a 17-item scale with four factors (Cronbach's α > 0.7) accounting for 68.044% of the total variance. CFA showed that the values of the fit indices, including convergent validity and discriminant validity, were excellent or acceptable. The overall Cronbach's α was 0.874, and each factor ranged from 0.726 to 0.885. This study introduces a valuable tool for assessing vaccination attitudes during public health crises, aiding researchers, policymakers, and nurses in combating vaccine hesitancy. Emphasizing the importance of fostering vaccine acceptance, it enhances disease control during emergencies, contributing to the knowledge needed for more effective public health strategies and crisis responses.

Modification and Validation of the Vaccine Hesitancy Scale for Turkish Adult Vaccination

Background and Purpose: For public health, it is important to investigate vaccine hesitancy, determine populations reluctant for vaccines, and investigate barriers and facilitators for vaccination in these groups. This study aims to modify and validate the Vaccine Hesitancy Scale specific to adults in Turkish society. Methods: The study, which was designed as a methodological and survey type, was conducted using a Google questionnaire with 720 participants who met the inclusion criteria with a convenient sampling method. Results: After factor and reliability analysis, a 2-factor, 10-item scale with an acceptable and perfect range of fit index values emerged. It has been observed that individuals who are young, single, do not have children, have vaccine allergy, and do not believe that the vaccine will protect the society are adversely affected by the environment, and those who do not have COVID-19 and flu have a high level of hesitancy to vaccine. Conclusions: The Vaccine Hesitancy Scale is a valid and reliable tool to detect vaccine hesitation in adults in Turkish society.

Modification of the Public Attitude Towards Vaccination Scale for use in adult vaccines

BACKGROUND

Vaccination is a crucial protective intervention to prevent adult mortality and morbidity. Personal perceptions and resources have an important place in the vaccination decision.

AIM

This study aimed to modify the Public Attitude Towards Vaccination-Health Belief Model scale for adult vaccines and evaluate its psychometric properties.

METHODS

Overall, 626 people participated in this methodological study. Content validity index, confirmatory factor analysis, internal consistency and item-total score correlation were used for validity and reliability. The independent samples t test, logistic regression analysis and ROC analysis were used for criterion and concurrent validity.

RESULTS

In confirmatory factor analysis, values of fit indices were excellent or acceptable. The Cronbach alpha value was between 0.83 and 0.92. According to criterion validity, the susceptibility, severity, benefit, and health motivation scores of those with the vaccine were higher than those without, whereas their barrier score was lower. The barrier subscale was a risk factor, whereas the benefit score was a protective factor that increased the likelihood of vaccination. The concurrent validity of the scale was tested with the COVID-19 vaccine. While the barrier subscale's ability to distinguish between vaccinated (specificity) and unvaccinated (sensitivity) individuals is excellent, it is acceptable for the other subscales.

CONCLUSION

Modified PAVS-HBM is valid and reliable for adult vaccines. This scale was associated with vaccination behaviour and distinguished between vaccinated and unvaccinated individuals.

An investigation of the relationship between the general vaccination attitudes of pregnant women and their attitudes toward the COVID-19 vaccine

This study aimed to investigate the relationship between the attitudes of pregnant women toward general vaccines based on the Health Belief Model and their attitudes toward the COVID-19 vaccine. The study, which was designed as a descriptive, cross-sectional, and correlational study, was conducted with 348 pregnant women in three public hospitals in Northern Cyprus between June 24 and November 28, 2022. Data were collected using the "Participant Information Form," "Public Attitude Toward Vaccination Scale-Health Belief Model" (PAVS-HBM), and "Attitudes Toward the COVID-19 Vaccine" (ATV-COVID-19). The COVID-19 vaccination rate among pregnant women was quite high. Pregnant women have a high perception of sensitivity, importance, benefit, and health responsibility for routine vaccines and vaccination programs based on the HBM, and a low perception of barriers to vaccination. These results showed that pregnant women have a determined and positive attitude toward the acceptance of vaccines in general. On the other hand, the attitude of pregnant women toward the COVID-19 vaccine was moderately negative. Despite the reservations about the COVID-19 vaccine, a determined and positive attitude toward vaccines in general has increased acceptance of the COVID-19 vaccine.

Knowledge, Attitudes, and Concerns Regarding COVID-19 Vaccination Among Unvaccinated Elderly People in the Aseer Region, Saudi Arabia

BACKGROUND

Vaccination is the best weapon to prevent any disease, especially pandemics like COVID-19, and building herd immunity is the best way to control the disease's spread. On one side, vaccine availability is important, and on the other, its successful distribution is faced with difficulty in a wide geographical area. Availability and distribution go hand in hand, which is the public health challenge. Vaccines are taking over, clearing up concerns about vaccination and making the public ready. The high-risk public should receive vaccines without resistance, which is of utmost importance. Unvaccinated older adults are at higher risk for COVID-19 infection, morbidity, and mortality. The reasons why older people who have not been vaccinated against COVID-19 do not want to receive vaccines when they are available include a lack of knowledge about COVID-19 vaccination and listening to incorrect sources of information. With this background, this study aimed to assess the knowledge, attitudes, and concerns of unvaccinated older adults in the Aseer Region, Saudi Arabia.

METHODS

A community-based cross-sectional study was planned to find out the knowledge and attitudes of the elderly in the Assir Region, Saudi Arabia. A total of 434 unvaccinated elderly persons were recruited randomly from the list of elderly (>60 years) who were unvaccinated. The data was gathered using a structured interview schedule in Arabic.

RESULTS

Out of 434 participants, more than half (54.8%) were male. Most of the participants were Saudi citizens (91.5%). Of the participants, nearly one-fifth (19.8%) of them had a previous history of COVID-19 infection. The participants' main sources of information about vaccination against COVID-19 were the mass media (41.9%), followed by word of mouth from friends, families, or neighbors (41.7%), and social media (16.4%). More than three-fourths of them (85.7%) had poor knowledge regarding the COVID-19 vaccination. The participants' poor knowledge grades were mainly among those aged >80 years, illiterate, unemployed participants, and current smokers. Those participants relying on social media had the highest number of concerns (6.663.21) regarding the safety and efficacy of vaccines.

CONCLUSIONS

Most participants have poor knowledge, and their knowledge of COVID-19 vaccination is limited. Participants whose main source of knowledge is the mass media need to intensify their education activities in the mass media. Social media, whose primary source of information is social media, has the greatest number of issues that require immediate attention. Social media content must be scanned, and misinformation needs to be addressed.

An Investigation of Pregnant Women's Attitudes Towards Childhood Vaccination and Trust in Health Services

BACKGROUND

Vaccination of children is of great importance for their healthy growth and development. Several concerns that have been mentioned by families due to various reasons could affect vaccination acceptance.

OBJECTIVES

This study aims to investigate pregnant women's attitudes toward childhood vaccinations and trust in health services.

METHODS

This study was designed as a descriptive study. It was conducted in a city located in the eastern part of Turkey between March and May 2019. The sample was 193 volunteer pregnant women. Data were collected using the Socio-demographic Form, the Multidimensional Trust in Health-care System Scale, and the Public Attitude toward Vaccination Scale - Health Belief Model.

RESULTS

A positive, statistically significant relationship was found between the Multidimensional Trust in Healthcare System Scale total mean score and Perceived Susceptibility, Perceived Severity, Perceived Benefits, and Health Responsibility (p < .01). In addition, education and income level, having social security, having had a vaccination or not, and knowing vaccines affected trusts in health services; having social security, having had vaccinations or not, and knowing vaccines affected health beliefs about vaccinations (p < 0.05).

CONCLUSIONS FOR PRACTICE

This study found that knowing vaccines affects both trust in health services and health beliefs about vaccination. Therefore, community health nurses working in primary care should provide parents with accurate and effective information about vaccinations.

Psychometric validation of a chinese version of COVID-19 vaccine hesitancy scale: a cross-sectional study

Background

COVID-19 vaccines have been administered in many countries; however, a sufficient vaccine coverage rate is not guaranteed due to vaccine hesitancy. To improve the uptake rate of COVID-19 vaccine, it is essential to evaluate the rate of vaccine hesitancy and explore relevant factors in different populations. An urgent need is to measure COVID-19 vaccine hesitancy among different population groups, hence a validated scale for measuring COVID-19 vaccine hesitancy is necessary. The present study aims to validate the COVID-19 vaccine hesitancy scale among different populations in China and to provide a scale measuring COVID-19 vaccine hesitancy with satisfactory reliability and validity.

Methods

Self-reported survey data were collected from different populations in China from January to March 2021. Based on the Parent Attitudes about Childhood Vaccines scale, 15 items were adapted to evaluate the COVID-19 vaccine hesitancy. Exploratory and confirmatory factor analysis were utilized to identify internal constructs of the COVID-19 vaccine hesitancy scale among two randomly split subsets of the overall sample. Reliability was analyzed with the internal consistency, composite reliability, and the test–retest reliability, and validity was analyzed with the criterion validity, convergent validity, and discriminant validity.

Results

A total of 4227 participants completed the survey, with 62.8% being medical workers, 17.8% being students, 10.3% being general population, and 9.1% being public health professionals. The exploratory factor analysis revealed a three-factor structure that explain 50.371% of the total variance. The confirmatory factor analysis showed that models consisting of three dimensions constructed in different populations had good or acceptable fit (CFI ranged from 0.902 to 0.929, RMSEA ranged from 0.061 to 0.069, and TLI ranged from 0.874 to 0.912). The Cronbach’s α for the total scale and the three subscales was 0.756, 0.813, 0.774 and 0.705, respectively. Moreover, the COVID-19 vaccine hesitancy scale had adequate test–retest reliability, criterion validity, convergent validity, and discriminant validity.

Conclusions

The COVID-19 vaccine hesitancy scale is a valid and reliable scale for identifying COVID-19 vaccine hesitancy among different population groups in China. Given the serious consequences of COVID-19 vaccine hesitancy, future studies should validate it across regions and time to better understand the application of the COVID-19 vaccine hesitancy scale.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12879-022-07746-z.

Exploring the Willingness of the COVID-19 Vaccine Booster Shots in China Using the Health Belief Model: Web-Based Online Cross-Sectional Study

(1) Objective: To explore Chinese residents’ willingness to receive COVID-19 vaccine booster shots and identify predictors of the level of willingness based on the health belief model (HBM). (2) Methods: The snowball sampling method was used to distribute online questionnaires. A chi-square test was used to analyze the relationship between different variables. The causal relationship between HBM-related factors and booster vaccination intentions was explored by Structural equation modeling (SEM). (3) Results: A total of 898 complete responses were included; 64.3% had already received the booster injection. Most respondents intended to vaccinate themselves, while 16.1% were hesitant. Nearly half of the respondents chose to take the booster injection to support China’s vaccination policy. Using the SEM, perceived susceptibility and perceived barriers were found to have a negative effect on booster vaccination intentions, whereas perceived benefit and cues to action positively affected booster vaccination intentions in the HBM. (4) Conclusions: Factors included in this study have different effects on the willingness to take the COVID-19 booster injections. Sociodemographic characteristics and characteristics of participants’ COVID-19 vaccination have a significant effect on the willingness to receive vaccine booster shots. The HBM constructs can serve as good predictors of the acceptance of vaccine booster shots with the exception of perceived severity, which may benefit health officials in terms of conducting targeted strategies in vaccine programs.

Public Attitude Towards COVID-19 Vaccination: Validation of COVID-Vaccination Attitude Scale (C-VAS)

Introduction

The fear of emergence of newer strains of SARS-CoV-2 as well as concerns of waning of protection after doses of COVID-19 vaccine has created a degree of global uncertainty surrounding the pandemic. Some of the emerging strains of SARS-CoV-2 have shown potential for causing serious disease and death, a threat that has been ameliorated by ensuring the vaccine coverage in populations. Still, the vaccine coverage remains unsatisfactory in certain populations. Hence, understanding and working on the factors which affect acceptance of the vaccine amongst the public can be considered a priority for public health as much as ensuring availability of the vaccines.

Objective

This research work aims to build and validate a scale to assess the public attitude towards COVID vaccination. The proposed scale has been named as COVID Vaccination Attitude Scale (C-VAS).

Materials and Methods

A three-stage process was used to develop the C-VAS which includes (1) item generation (deductive and inductive approach); (2) item–refinement (pre-testing and pilot testing, exploratory factor analysis (EFA); and (3) scale validation (confirmatory factor analysis, CFA). The sample size used for this research was 840. In order to overcome the issue of common method bias, the data was collected in two phases. The sample n1 (411) was used for EFA and the sample n2 (429) was employed for undertaking CFA. Common method bias was assessed to check if variations in responses are caused by the instrument instead of the actual dispositions of the respondents. Items of the scale were taken by reviewing the extant literature about vaccination, from the relevant established theories such as health belief model and by interviewing with domain experts. The content validity of the scale was determined.

Results

EFA extracted five factors, labelled as “Perceived Benefits”, “Perceived Barriers”, “Perceived Severity”, “Health Motivation” and “Perceived Risk”. To further validate the factor–item structure CFA was performed.

Conclusion

The measurement model was assessed by applying CFA to examine the reliability, accuracy and validity of the scale. Development of this scale can help in understanding factors that affect vaccine acceptability behavior. This can be used in promoting COVID vaccine coverage in countries and societies which still have low vaccination rates especially due to lack of acceptance of the vaccine. This scale also has the potential to understand public behavior in relation to similar future outbreaks and the acceptance of the mitigatory vaccines.

Attitudes toward vaccines during the COVID-19 pandemic: results from HBCU students

Purpose

To investigate the prevalence of vaccine hesitancy among black college students and to explain students' reasoning behind their vaccine hesitancy.

Design

online survey completed in spring and summer of 2021. Students were recruited via email.

Setting

HBCU campus, North Carolina, USA.

Subjects

397 currently enrolled students.

Measures

An original survey instrument was developed which included questions on vaccination status and plans to get vaccinated, perceived threat from the coronavirus (adopted from PEW research) exercise behaviors and demographics. Respondents were also given the chance to respond to an open-ended question about their feelings about the vaccine.

Analysis

Binary Logistic Regression predicting likelihood that respondent is vaccine hesitant.

Results

Confidence in the safety of the vaccine was the strongest predictor of vaccine hesitancy. At the time of the survey only 25% of students had received at least one dose of the vaccine. 37% of the students did not plan on ever getting vaccinated. Other considerations (living with a vulnerable person or concerns about their own vulnerability to COVID) were not associated with getting vaccinated. Students were particularly concerned about side effects from the vaccine.

Conclusion

Racial disparities in COVID-19 infections, deaths, and vaccinations serve as a stark reminder of the urgent need to better understand the factors that could lead to mitigation of the virus. Fear about the safety of the vaccine among minority populations in particular must be unpacked in order to address valid concerns and overcome hesitancy. This study provides key insights into the contours of those fears.

Health concerns among waste collectors during pandemic crisis

The COVID-19 pandemic has negatively affected the economic, social, and psychological aspects globally. COVID-19 can possibly spread through municipal solid waste (MSW) if it is collected, bagged, transported, and disposed inappropriately. Such situation has posed significant challenges to MSW management (MSWM), which has led waste personnel under massive pressure. This study aims to examine the health-protective behavior of sanitation workers/MSW collectors (MSWCs) during the COVID-19 crisis. Quantitative data were collected by using a self-administered survey from 418 MSWCs working in Mainland China. The study extended the traditional health-belief model and proposed education and training as a facet of the behavioral model. Result showed that education and training were a significant predictor of health-protective behavior. Moreover, the moderating incremental influence of regulative assistance significantly affected the behavioral mapping of MSWCs. This study contributes to the literature by mapping the concerns, risks, and challenges experienced by MSWCs in times of a health crisis. Policymakers should specially consider the safety and hygiene concerns of frontline workforce in the whole chain of waste management (including the outsourced operations of MSWM). Lastly, the adoption of smart communication with the frontline workforce (i.e., MSWCs) is in dire need to maintain trust and avoid rumors and misconceptions during the time of a pandemic situation.

Factors that influence Puerto Rican's intention to get the COVID-19 vaccine

Despite Latino Americans having been found to be disproportionally affected by COVID-19, they report higher hesitancy to receive the COVID-19 vaccine than non-Hispanic whites. The purpose of this study was to examine factors that influence Puerto Rican's intentions to get the COVID-19 Vaccine. A sample (n = 173) of people who currently lived in Puerto Rico were recruited to complete an online, cross-sectional survey about their intention to receive the COVID-19 vaccine. Demographics and vaccine hesitancy were assessed, and logistic regressions explored relationships between variables and intention to get the COVID-19 vaccine when it became available. When controlling for covariates, 30–49-year-olds (aOR = 0.12) and those who had refused a vaccine in the past (aOR = 0.07) had lower odds of vaccine uptake than those between 18 and 29 years and who had not previously refused a vaccine, respectively. Those who had completed at least a 4-year college degree (aOR = 6.78) had greater odds of intending to get vaccinated than their counterparts. Health education campaigns about COVID-19 in Puerto Rico should be tailored to working-age adults who may mistrust information they have heard about the vaccine. Messages could be tailored to preferred communication channels to decrease vaccination hesitancy.

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Puerto Ricans between 18 and 29 years were more likely to get vaccinated than 30–49-year-olds.

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Puerto Ricans who had previously refused a vaccine had lower odds of getting the Covid-19 vaccine.

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Puerto Ricans with a 4-year college degree+ were more likely to get vaccinated.

A more comprehensive measure of vaccine hesitancy: Creation of the Multidimensional Vaccine Hesitancy Scale (MVHS)

This article aimed to develop the Multidimensional Vaccine Hesitancy Scale (MVHS). In Study 1 (n = 336), we identified 13 possible vaccine hesitancy dimensions and developed an item list. In Study 2 (n = 444), we performed an exploratory factor analysis that supported an eight-dimension structure and reduced our measure to 32 items. We supported its validity by establishing relations with associated variables, even while controlling for measures of the same and similar constructs. In Study 3 (n = 575), we confirmed its factor structure and replicated its validity results. Support was provided for the psychometric properties and validity of the MVHS.

Parental Opinions and Approaches about Childhood Vaccinations: Are Anti-vaccination Approaches and Indecisiveness Parental Rights?

This study aimed to analyze parental opinions regarding immunization services and the factors that affect parental decisions regarding the vaccination of their children. We conducted descriptive study with 373 parents. The Parent Information Form and the Public Attitude Toward Vaccination Scale-Health Belief Model developed to evaluate vaccination approaches, were used. Of the parents who participated in the study, 35.9% stated that they found the information on childhood vaccinations unreliable or that they doubted the credibility of the information. In addition, most of the parents (71%) stated that they believed that the high number of immigrant children in the country causes contagious diseases to increase. It is found that there are statistically significant higher scores in the subscales of severity, susceptibility, and health motivation among the parents who disagree with the media statements on anti-vaccination attitudes (p < 0,001). Opinions and approaches of parents toward childhood vaccinations are affected by sociodemographic characteristics. In this study, the educational level of parents was found to be the most important variable affecting the approach of parents toward vaccinations.