A childhood immunization education program for parents delivered during late pregnancy and one-month postpartum: a randomized controlled trial.

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  • Additional Information
    • Source:
      Publisher: BioMed Central Country of Publication: England NLM ID: 101088677 Publication Model: Electronic Cited Medium: Internet ISSN: 1472-6963 (Electronic) Linking ISSN: 14726963 NLM ISO Abbreviation: BMC Health Serv Res Subsets: MEDLINE
    • Publication Information:
      Original Publication: London : BioMed Central, [2001-
    • Subject Terms:
      Health Education* ; Immunization*/psychology ; Immunization*/statistics & numerical data; Parents/*education; Adult ; Decision Making ; Female ; Health Knowledge, Attitudes, Practice ; Humans ; Infant ; Intention ; Japan ; Male ; Parents/psychology ; Postpartum Period ; Pregnancy ; Program Evaluation ; Surveys and Questionnaires
    • Abstract:
      Background: Improved immunization rates have reduced the incidence of vaccine-preventable diseases (VPDs) in advanced nations. Japan's unique vaccination system classifies vaccines into routine vaccines ostensibly required under the Preventive Vaccination Law and recommended but optional vaccines, although all vaccines are in fact voluntary. In Japan, low immunization rates, particularly for optional vaccines, have resulted in high rates of sequelae and death. The decision as to whether a child will receive a vaccine depends on the parents, who must obtain information, make inquiries, and make the required payment, the last of which is a major barrier. This randomized, controlled trial was conducted to evaluate the effectiveness of an immunization education program designed to meet mothers' needs.
      Methods: This randomized controlled trial assigned pregnant women to intervention or control groups. The intervention was individual education sessions involving the children's fathers in shared decision-making on whether or not to immunize their child. A survey was conducted before and after the intervention. Data were analyzed using the intention-to-treat principle.
      Results: Of 225 pregnant women, 175 (78%) participated and 171 replied to the post-survey. At age 3 months, intervention infants had higher self-reported immunization rates for hepatitis B virus vaccine (76% vs. 49%; P < 0.001) and rotavirus vaccine (84% vs. 68%; P = 0.019) than control group infants. The percentage of parents intending to vaccinate their infants was higher in the intervention group (77% vs. 52%; P < 0.01). Improvements in scores for basic knowledge (mean [SD]: 5.5 [3.6] vs. 3.0 [3.8], range: 10-30; P < 0.001), advanced knowledge (mean [SD]: 5.1 [2.4] vs. 2.8 [2.5], range: 5-15; P < 0.001), and health literacy regarding immunization (mean [SD]: 0.5 [0.8] vs. 0.2 [0.6], range: 1-5; P < 0.01) were higher in the intervention group. The rate of decision making by both parents (68% vs. 52%; P < 0.05) was higher in the intervention group.
      Conclusions: Our findings confirmed the program's effectiveness. The intervention improved immunization rates, the percentage of parents intending to vaccinate their infants and knowledge scores. Interventions which directly and indirectly involved fathers in shared decision-making on whether to immunize their child were effective, as were individualized interventions that provided parents with access to up-to-date information.
      Trial Registration: UMIN000012575 . Registered 14 December 2013 (The study was prospectively registered).
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    • Grant Information:
      12-9-067 2012 Collaborative Domestic Research Grant from the Pfizer Health Research Foundation
    • Contributed Indexing:
      Keywords: Childhood immunization; Decision-making; Education; Immunization rate; Parents
    • Publication Date:
      Date Created: 20191107 Date Completed: 20200127 Latest Revision: 20200127
    • Publication Date:
      20240104
    • Accession Number:
      PMC6833181
    • Accession Number:
      10.1186/s12913-019-4622-z
    • Accession Number:
      31690298