Skip to main content
. 2022 Jul 31;107(10):e3990–e4003. doi: 10.1210/clinem/dgac459

Table 2.

TIR, TBR, and TAR of the whole patient population

Parameter HbA1c <  53 (n = 500) HbA1c 53-63 (n = 386) HbA1c 64-74 (n = 85) HbA1c ≥  75 (n = 28) P value
TIR3.9–10 mmol/L (%) 90.5 (84.0-94.9) 78.1 (66.7-86.6)a 55.0 (37.0-67.6)a,b 27.2 (7.2-44.4)a,b,c <0.001
TBR < 3.9 mmol/L (%) 0.65 (0.00-2.87) 0.00 (0.00-0.91)a 0.00 (0.00-0.78)a 0.00 (0.00-0.00)a,b <0.001
TBR < 3.0 mmol/L (%) 0.00 (0.00-0.13) 0.00 (0.00-0.00)a 0.00 (0.00-0.00) 0.00 (0.00-0.00)a <0.001
TAR > 10.0 mmol/L (%) 5.79 (2.47-12.6) 20.1 (11.5-31.8)a 44.1 (28.3-62.8)a,b 72.7 (55.6-92.8)a,b,c <0.001
TAR > 13.9 mmol/L (%) 0.00 (0.00-0.52) 1.17 (0.00-4.17)a 8.98 (3.91-16.8)a,b 23.7 (14.4-56.2)a,b,c <0.001
TIR3.9–10 mmol/L (%), day 90.0(81.8-94.4) 74.5 (60.2-84.6)a 46.4 (36.7-63.9)a,b 25.3 (7.12-39.1)a,b,c <0.001
TBR < 3.9 mmol/L (%), day 0.35 (0.00-2.43) 0.00 (0.00-0.52)a 0.00 (0.00-0.17)a 0.00 (0.00-0.00)a,b <0.001
TBR < 3.0 mmol/L (%), day 0.00 (0.00-0.00) 0.00 (0.00-0.00) 0.00 (0.00-0.00) 0.00 (0.00-0.00) 0.026
TAR > 10.0 mmol/L (%), day 7.29 (3.13-16.2) 24.1 (14.1-39.4)a 53.3 (35.4-62.6)a,b 74.7 (60.9-92.9)a,b,c <0.001
TAR > 13.9 mmol/L (%), day 0.00 (0.00-0.69) 1.39 (0.00-5.38)a 11.1 (4.49-21.4)a,b 25.6 (14.6-58.0)a,b,c <0.001
TIR3.9–10 mmol/L (%), night 97.4 (91.1-100.0) 94.0 (82.8-99.0)a 74.0 (46.9-89.6)a,b 29.7 (9.11-72.1)a,b,c <0.001
TBR < 3.9 mmol/L (%), night 0.00 (0.00-4.69) 0.00 (0.00-1.04)a 0.00 (0.00-1.04)a 0.00 (0.00-0.00)a,b,c <0.001
TBR < 3.0 mmol/L (%), night 0.00 (0.00-0.00) 0.00 (0.00-0.00)a 0.00 (0.00-0.00) 0.00 (0.00-0.00) 0.005
TAR > 10.0 mmol/L (%), night 0.00 (0.00-1.56) 3.13 (0.00-12.5)a 18.75 (6.25-53.1)a,b 70.31 (27.86-90.89)a,b,c <0.001
TAR > 13.9 mmol/L (%), night 0.00 (0.00-0.00) 0.00 (0.00-0.00)a 0.52 (0.00-6.77)a,b 16.7 (2.60-47.4)a,b,c <0.001

Data are median (Q1-Q3). Differences between the 4 HbA1c groups were tested using the Kruskal-Wallis test with the post hoc Steel-Dwass test.

Abbreviations: TAR, time above range; TBR, time below range; TIR, time in range.

a P < 0.05 vs. HbA1c <  53.

b P < 0.05 vs HbA1c 53-63.

c P < 0.05 vs HbA1c 64-74.