에러그리드를 사용한 대체부위 혈당검사의 유용성 검증
Accuracy Evaluation of the Alternative Site Blood Glucose Test Using Error Grid
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초록
Blood glucose information is important for self regulation in daily life, but the frequency of self test remains to be only 17%(9 tests/month) in Korea, mainly due to pain during blood sampling. The present study tried to validate the clinical efficacy of the forearm as an alternative sampling site with minimized pain. Capillary blood was sampled both on the index finger(GF) and the forearm(GA), immediately followed by glucose measurements in 531 subjects,who visited the Health Enhancement Center of C University Hospital, then venous blood(GV) was sampled for glucose test. The blood glucose concentration measured on the forearm was closer to the venous glucose than on the finger. The mean difference between GV and GF was only 10 mg/dL well within the internationally accepted error limit. Error grid analyses of GF-GV, GA-GV, and GA-GF revealed that the number of data points in regions A and B took 100%, 99.8%, and 97.9%, respectively. These results demonstrate the forearm blood glucose test is not only accurate but also clinically valid. Therefore, the forearm blood glucose test can be a useful way of self managing the chronic diabetes with minimized sampling pain.
Abstract
Blood glucose information is important for self regulation in daily life, but the frequency of self test remains to be only 17%(9 tests/month) in Korea, mainly due to pain during blood sampling. The present study tried to validate the clinical efficacy of the forearm as an alternative sampling site with minimized pain. Capillary blood was sampled both on the index finger(GF) and the forearm(GA), immediately followed by glucose measurements in 531 subjects,who visited the Health Enhancement Center of C University Hospital, then venous blood(GV) was sampled for glucose test. The blood glucose concentration measured on the forearm was closer to the venous glucose than on the finger. The mean difference between GV and GF was only 10 mg/dL well within the internationally accepted error limit. Error grid analyses of GF-GV, GA-GV, and GA-GF revealed that the number of data points in regions A and B took 100%, 99.8%, and 97.9%, respectively. These results demonstrate the forearm blood glucose test is not only accurate but also clinically valid. Therefore, the forearm blood glucose test can be a useful way of self managing the chronic diabetes with minimized sampling pain.
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