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. 2024 Nov 18;99(1):28.
doi: 10.1186/s42506-024-00174-8.

Development and validation of an Arabic tool for assessment of post-vaccination confidence in COVID-19 vaccines (ARAB-VAX-CONF)

Rowan Abuyadek  1 , Samar Abd ElHafeez  2 , Mohamed Mostafa Tahoun  2 , Sally Samir Othman  3 , Abdelrahman Omran  4 , Naglaa Fathy  5 , Ramy Mohamed Ghazy  6   7
Affiliations

Development and validation of an Arabic tool for assessment of post-vaccination confidence in COVID-19 vaccines (ARAB-VAX-CONF)

Rowan Abuyadek et al. J Egypt Public Health Assoc. .

Abstract

Background: Vaccine confidence is described as a belief that vaccines are effective, safe, and part of a trustworthy health system. The objective of this study was to develop and validate an Arabic tool to evaluate confidence in the received coronavirus disease 2019 (COVID-19) vaccines (ARAB-VAX-CONF).

Methods: The research team developed the ARAB-VAX-CONF based on three areas specified by the Centers for Disease Control and Prevention (CDC): confidence in vaccine effectiveness, confidence in vaccine safety, and confidence in the healthcare system. The analysis includes data from 406 eligible vaccinated persons (≥ 18 years). Cronbach's alpha was used to measure internal consistency, while convergent, discriminant, exploratory, and confirmatory factor analyses were used to verify construct validity.

Results: A total of 406 adults were recruited, with a mean age of 33.0 ± 12.2 years. A total of 63.1% were males, 56.7% were married, 21.9% had chronic conditions, 93.3% were nonsmokers, and 39.6% were obligated to obtain vaccines. The three domains of the scale met the criterion of internal consistency (Cronbach's alpha > 0.7). Convergent validity was identified by the significant inter-item and item-mean score of the domain correlation (P < 0.001). Discriminant validity was reported as the inter-factor correlation matrix (< 0.7). The Kaiser-Meyer-Olkin sampling adequacy measure was 0.80, and Bartlett's sphericity test was significant (P < 0.001). Exploratory factor analysis indicated that the scale could be summarized into three factors. Confirmatory factor analysis confirmed the adequate psychometric properties and fit with observed data (root-mean-square error of approximation = 0.08, comparative fit index = 0.945, Tucker-Lewis index = 0.924, standardized root-mean-square residual = 0.086, normed fit index = 0.918, and goodness-of-fit index = 0.909).

Conclusions: The ARAB-VAX-CONF developed in this study is valid and reliable for assessing confidence in vaccine effectiveness, safety, and confidence in the healthcare system. The ARAB-VAX-CONF can support decision-makers in addressing the gap in vaccine confidence among various populations.

Keywords: ARAB-VAX-CONF; COVID-19; Fully vaccinated; Reliability; Vaccine confidence; Vaccine hesitancy; Validity.

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Conflict of interest statement

Declarations Ethical approval and consent to participate The Ethics Committee of the High Institute of Public Health at Alexandria University held on 25th October 2022 approved the study proposal. The study participants’ anonymity and confidentiality were protected and maintained. The online tool involved an introductory consent before proceeding to the data collection tool. Consented participants only were involved in the study. Consent for publication Not applicable. Competing interests Th authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
Exploratory factor analysis of the 12 questions related to the 3 domains of the ARAB-VAX-CONF tool
Fig. 2
Fig. 2
Confirmatory factor analysis of the 12 questions related to the 3 domains of the ARAB-VAX-CONF tool
See this image and copyright information in PMC

References

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