Title

Development and validation of parental vaccine attitudes scale for use in low-income setting

Document Type

Report

Department

Paediatrics and Child Health; Women and Child Health

Abstract

Background: This study aimed to develop a tool and assess its validity to measure childhood vaccine related attitudes among parents in a low-income setting.
Methods: We developed a vaccine attitudes scale (VAS) composed of 14 Likert items each with 5 responses ranging from strongly agree to strongly disagree (sum of scores range 14-70). The tool was administered to 901 parents with children 4-12 months of age during a vaccine coverage survey in Sindh, Pakistan. We performed factor analysis with eigenvalues >0.3 for sufficient factor loading and calculated Cronbach alpha for reliability.
Results: The mean ± SD score on VAS was 48 ± 3 and Cronbach alpha was 0.61. Factor analysis identified that VAS measured 2 different domains related to the childhood vaccine related attitudes; (1) 10 items related to vaccine perceptions and concerns (mean 40 ± 5.5; Cronbach alpha 0.95) and (2) 4 items related to vaccine preventable disease salience and community benefit (mean 7 ± 3; Cronbach alpha 0.97). The odds of children being unimmunized was 5 times higher among parents who scored high (13-20) as compared with low (<13) on the subscale related to disease salience and community benefit (odds ratio 5.2; 95% CI: 3.6-7.6). The odds of children being unimmunized was 1.5 times higher among parents scoring high (40-50) as compared with low (<40) on subscale related to vaccine perception/concerns (odds ratio 1.5; 95% CI: 1.1-2.2).
Conclusion: The 4-item scale assessing parental attitudes toward vaccine preventable disease salience and community benefit is sufficiently reliable and can predict vaccine acceptance among parents in low income setting.

Publication

Pediatric Infectious Disease Journal

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