Assessment of accuracy, clinical validity, and analytical linearity in point-of-care glucose monitoring devices for diabetes mellitus: A systematic review and meta-analysis
Abstract
Point-of-care technology (POCT) is utilized in diabetes management due to its fast turnaround time. However, the accuracy and reliability of its results are of concern. This review aims to evaluate the (i)accuracy, (ii)clinical validity and (iii)linearity of POCT for blood glucose concentration following ISO 15197. The study was conducted following the PRISMA framework. Searches with the search term "point of care test" OR "POCT" AND "Accuracy" AND "glucose" were made on Scopus, PubMed, DOAJ, and Cochrane Library. Quality assessments were performed using the QUADAS-2 tool. Proportion and Coefficient meta-analyses were used. Recent studies (2019-2023) evaluating the accuracy of POC devices in blood glucose estimation were included. 4918 participants and 56 POC brands were identified from the 30 included studies. The pooled percentage of POCT results within ±15 mg/dL (±0.83 mmol/L) for glucose concentrations <100 mg/dL (<5.6 mmol/L) was 98.83 % (95 % CI: 96.52-99.92) for professional use and 87.70 % (95 % CI: 62.65-99.65) for home-use glucometers. For glucose concentrations ≥100 mg/dL (≥5.6 mmol/L), the pooled percentages were 98.59 % (95 % CI: 95.90-99.88) and 88.79 % (95 % CI: 67.35-99.44), respectively. Measurements in zones A and B of the consensus error grid analysis were 98.06 % (95 % CI: 94.59-99.80) for professional-use and 98.70 % (95 % CI: 95.85-99.95) for home-use glucometers. The pooled correlation coefficient for professional-use glucometers was 0.988 (95 % CI:…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 4,918 participants or records.
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