Abstract
BACKGROUND: The Information Mobilized for Performance Analysis and Continuous Transformation (IMPACT) approach model was introduced to promote the generation and utilization of quality data for evidence-based decision-making. Thus, this study aimed to determine the influence of the IMPACT approach and healthcare workers' knowledge on the availability of antenatal care (ANC) commodities. METHODS: The research was carried out from July to August 2023 in Itilima District, Simiyu, Tanzania. Mixed methods were employed in a quasi-experimental and case study design. The data were collected by a self-administered questionnaire and complemented by in-depth interviews for the qualitative component. Longitudinal changes were assessed via paired sample t-tests. RESULTS: Of 90 participants in a quantitative design, the majority (64.8%) reported having good knowledge of the IMPACT approach. All health facilities had adequate stock of ANC health commodities. Compared to the baseline year, that is, 2019, significant differences were observed in the performance trends, particularly in 2022, with a mean (SD) of 17.1 ± 36.0, p < 0.001. The qualitative findings indicate that awareness of the IMPACT approach is widespread among healthcare workers, with most describing it as a tool for strengthening data-driven decision-making and improving supply chain visibility. CONCLUSION: This study revealed that most healthcare workers have good knowledge of the IMPACT approach. The IMPACT approach was reported to improve the availability of ANC commodities. A strong emphasis should be placed on the use of health commodities data for decision-making.