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Changes in on-time vaccination following the introduction of an electronic immunization registry, Tanzania 2016-2018: interrupted time-series analysis. | LitMetric

AI Article Synopsis

  • - The study explores how digital health interventions, particularly electronic immunization registries (EIRs), can potentially enhance vaccination timing and adherence in low-and middle-income countries; however, more evaluations are necessary to understand their overall impact on health systems.
  • - An analysis conducted in Tanzania found that the introduction of an EIR initially led to a decrease in on-time vaccinations, although some improvements were noted in children with complete records, highlighting inconsistencies in data collection and implementation challenges.
  • - The research underscores the complexities involved in utilizing digitized health data for evaluations, suggesting that while EIRs hold promise for enhancing vaccination practices, issues like data quality and entry accuracy need to be addressed for reliable outcomes.

Article Abstract

Background: Digital health interventions (DHI) have the potential to improve the management and utilization of health information to optimize health care worker performance and provision of care. Despite the proliferation of DHI projects in low-and middle-income countries, few have been evaluated in an effort to understand their impact on health systems and health-related outcomes. Although more evidence is needed on their impact and effectiveness, the use of DHIs among immunization programs has become more widespread and shows promise for improving vaccination uptake and adherence to immunization schedules.

Methods: Our aim was to assess the impact of an electronic immunization registry (EIR) using an interrupted time-series analysis to analyze the effect on proportion of on-time vaccinations following introduction of an EIR in Tanzania. We hypothesized that the introduction of the EIR would lead to statistically significant changes in vaccination timeliness at 3, 6, and > 6 months post-introduction.

Results: For our primary analysis, we observed a decrease in the proportion of on-time vaccinations following EIR introduction. In contrast, our sensitivity analysis estimated improvements in timeliness among those children with complete vaccination records. However, we must emphasize caution interpreting these findings as they are likely affected by implementation challenges.

Conclusions: This study highlights the complexities of using digitized individual-level routine health information system data for evaluation and research purposes. EIRs have the potential to improve vaccination timeliness, but analyses using EIR data can be complicated by data quality issues and inconsistent data entry leading to difficulties interpreting findings.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9485799PMC
http://dx.doi.org/10.1186/s12913-022-08504-2DOI Listing

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