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. 2014 Aug 1;16(8):491–498. doi: 10.1089/dia.2013.0355

Table 2.

Absolute and Relative Reliabilities of Daily and Short-Term Glucose Profiles

          Intraclass correlation
  Day 1 Day 2 T Average CV (%) R 95% CI
Glucose (mmol/L)
 Meana,b 7.0±1.2 7.1±1.1 −0.81 3.9 0.95 0.81–0.99
 Post-breakfast mean 8.4±2.2 8.6±1.6 −0.59 9.3 0.88 0.57–0.97
 Post-lunch mean 7.8±1.8 7.8±1.5 −0.05 6.5 0.86 0.50–0.96
 Post-supper mean 7.2±1.7 7.2±1.8 0.08 11.7 0.77* 0.20–0.93
 Exercise mean 7.0±1.9 7.4±1.6 −2.02 7.3 0.95 0.83–0.99
 Post-exercise mean 7.3±2.0 7.9±1.5 −2.15 8.9 0.91 0.70–0.98
 Nocturnal mean 6.7±1.5 6.7±1.7 0.03 7.9 0.92 0.71–0.98
t>10.0 mmol/L (min)c 250±311 249±451 0.02 59.4 0.93 0.58–0.99
SDw (mmol/L)a 1.16±0.37 1.02±0.35 1.59 16.3 0.80* 0.24–0.95
%cvw (mmol/L)a 16.8±5.2 14.4±4.7 1.80 17.4 0.74* 0.05–0.93
MAGE (mmol/L)a
 MAGEc 2.83±1.17 2.08±0.66 2.38* 20.7 0.56 −0.62 to 0.88
 MAGEave 2.81±0.93 2.31±0.65 2.44* 16.9 0.79* 0.22–0.94
 MAGEabs.gos 2.32±0.79 2.11±0.57 1.13 13.2 0.77* 0.14–0.94
CONGA (mmol/L)a
 CONGA1 0.93±0.30 0.94±0.27 −0.22 7.0 0.96 0.84–0.99
 CONGA2 1.22±0.40 1.22±0.37 −0.06 8.6 0.95 0.81–0.99
 CONGA4 1.56±0.55 1.41±0.51 1.37 15.8 0.86 0.48–0.96
 CONGA6 1.69±0.68 1.32±0.44 2.44* 25.3 0.76* 0.11–0.94
 CONGA8 1.76±0.68 1.37±0.39 2.18 23.3 0.59 −0.54 to 0.89
 CONGA10 1.75±0.65 1.42±0.64 1.29 29.5 0.26 −1.77 to 0.80
 CONGA12 1.51±0.56 1.05±0.32 2.68* 30.1 0.41 −1.13 to 0.85
a

n=11 after excluding one outlier.

b

22-h mean glucose concentration.

c

Individuals who showed no time spent in glycemia >10.0 mmol/L were excluded (n=7).

*

P<0.05, P<0.01, P<0.001.

%cvw, percentage coefficient of variation; CI, confidence interval; CONGA, continuous overlapping net glycemic action, with “n” indicating the number of hours; CV, coefficient of variation ([SD/mean]×100); MAGE, mean amplitude of glycemic excursions, with MAGEc, MAGEave, and MAGEabs.gos being MAGE that exceeded 1 SD in a single direction, MAGE calculated from both upward and downward glycemic excursions, and MAGE by the group of signs method, respectively; SDw, glucose SD within each 22-h CGMS measurement; t>10.0 mmol/L, time spent in hyperglycemia.