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Effective community-engaged research is critical for designing and testing solutions to decrease the 10-year life expectancy gap between Black and non-Black residents of Chicago, Illinois. In community listening sessions, the Chicago Chronic Conditions Engagement Network found that community members’ highest priority health issues were social determinants of health and that there is a strong mistrust of research. Conversations with leaders of community organizations addressing social determinants of health suggest strategies to help researchers overcome mistrust and build effective community–research partnerships. ( Am J Public Health. 2025;115(S2):S130–S133. https://doi.org/10.2105/AJPH.2025.308082 )

Vitamin D is the only vitamin that is conditionally essential, as it is synthesized from precursors after UV light exposure, whilst also being obtained from the diet. It has numerous health benefits, with deficiency becoming a major concern globally, such that dietary supplementation has more recently achieved vital importance to maintain satisfactory levels. In recent years, measurements made from blood have, therefore, become critical to determine the status of vitamin D levels in individuals and the larger population. Tests for vitamin D have routinely relied on laboratory analysis with sophisticated equipment, often being slow and costly, whilst rapid immunoassays have suffered from poor specificity and sensitivity. Here, we have evaluated a new rapid immunoassay test on the market (Rapi-D & IgLoo) to quickly and accurately measure vitamin D levels in small capillary blood specimens and compared this to measurements made using the standard laboratory method of liquid chromatography and mass spectrometry. Our results show that vitamin D can be measured very quickly and over a broad range using the new method, as well as correlate relatively well with standard laboratory testing; however, it cannot be fully relied upon currently to accurately diagnose deficiency or sufficiency in individuals. Our statistical and comparative analyses find that the rapid immunoassay with digital quantification significantly overestimates vitamin D levels, leading to diminished diagnosis of vitamin D deficiency. The speed and simplicity of the rapid method will likely provide advantages in various healthcare settings; however, further calibration of this rapid method and testing parameters for improving quantification of vitamin D from capillary blood specimens is required before integration of it into clinical decision-making pathways.

The development, pilot and evaluation of a brief psychosocial training intervention (BPTI) for staff working with people with dementia in an acute hospital setting are described. The project had two phases. Phase one involved adapting an existing competency framework and developing the BPTI using focus groups. For the pilot and evaluation, in phase two, a mixed methods approach was adopted using self-administered standardised questionnaires and qualitative interviews. Qualitative analysis suggested that delivering skills-based training can develop communication, problem-solving and self-directed learning skills; benefit staff in terms of increased knowledge, skills and confidence; and be problematic in the clinical area in terms of time, organisation and the physical environment. These factors must be taken into consideration when delivering training. These changes were not reflected in the quantitative results and measures were not always sensitive to changes in this setting. Definitive conclusions cannot be drawn about the efficacy of the intervention, due to the contradictory outcomes between the quantitative and qualitative data. Further developments and research are required to explore how staff and organisations can be supported to deliver the best possible care.