Continuous glucose monitoring system: dawn period calibration does not change accuracy of the method / Sistema de monitorização contínua de glicose: calibração da madrugada não interfere na acurácia do método
Augusto, Gustavo A; Sousa, André G. P; Perazo, Marcela N. A; Correa-Giannella, Maria L. C; Nery, Marcia; Melo, Karla F. S. de.
Arq. bras. endocrinol. metab
; 53(4): 425-428, jun. 2009. graf, tab
Artículo
en Inglés
| LILACS | ID: lil-520766
INTRODUCTION:
Continuous glucose monitoring system is a valuable instrument to measure glycemic control, which uses a retrospective calibration based upon 3 to 4 capillary glucose meter values inserted by the patient each day.OBJECTIVE:
We evaluated the interference of calibration during the dawn period in the system accuracy.METHODS:
The monitoring data were retrospectively divided into two groups with (Group A) or without (Group B) the dawn period calibration (between 100 and 500 AM). Accuracy of the method was expressed by relative absolute difference.RESULTS:
Thirty-four continuous glucose monitoring data were evaluated comprising a total of 112 nights. A total of 289 paired readings were analyzed - 195 in Group A and 94 in Group B. We did not find a difference in relative absolute difference (RAD%) in any analyzed period of day by adding dawn calibration.CONCLUSIONS:
These data suggest that dawn calibration does not alter accuracy of method.
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