Analys av 25-hydroxyvitamin D i primärvården
Sammanfattning: Background: The interest of vitamin D has increased in the last years. That is because there is so many possible positive effects of vitamin D and also because many individuals has vitamin D deficiency. Modern man spends much time indoors which leads to lower levels of vitamin D. People who have emigrated from a sunny climate to a Nordic climate often gets a deficiency due to a more pigmented skin which requires a larger amount of UVB to get an adequate synthesis of vitamin D. Aim: The aim with this study is to compare and evaluate how similar the instrument mini VIDAS measures 25(OH)D total against the current existing method cobas e 602. A discussion about if 25(OH)D total has a place in primary health care is included in the study. Method: The comparison was based on 39 samples. The samples was analyzed on cobas e 602 and mini VIDAS. A precision test was performed. External controls from DEQAS was also included in the study. The results have been presented with simple linear regression analysis, mean value, SD and CV. Results: The comparison between cobas e 602 and mini VIDAS gave a coefficient of determination of 81,34 %. mini VIDAS was closest to the external controls target values. Conclusion: There is no obvious conclusions about if mini VIDAS fulfills the requirement to be introduced to primary health care. The coefficient of determination of 81,34 % should be at least 95 %. However is mini VIDAS closer to the external controls target values then cobas e 602. There is factors that implies that 25(OH)D total has a place in primary health care with regards to demand, use and because many individuals has vitamin D deficiency. The instrument is also user-friendly to a primary health care laboratory.
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