Table 3

Guidance on targets for assessment of glycemic control for adults with type 1 or type 2 diabetes and older/high-risk individuals

Diabetes groupTIRTBRTAR
% of readings; time per dayTarget range% of readings; time per dayBelow target level% of readings; time per dayAbove target level
Type 1*/type 2>70%; >16 h, 48 min70–180 mg/dL (3.9–10.0 mmol/L)<4%; <1 h<70 mg/dL (<3.9 mmol/L)<25%; <6 h>180 mg/dL (>10.0 mmol/L)
<1%; <15 min<54 mg/dL (<3.0 mmol/L)<5%; <1 h, 12 min>250 mg/dL (>13.9 mmol/L)
Older/high-risk# type 1/type 2>50%; >12 h70–180 mg/dL (3.9–10 mmol/L)<1%; <15 min<70 mg/dL (<3.9 mmol/L)<10%; <2 h, 24 min>250 mg/dL (>13.9 mmol/L)
  • Each incremental 5% increase in TIR is associated with clinically significant benefits for individuals with type 1 or type 2 diabetes (26,27).

  • *For age <25 years, if the A1C goal is 7.5%, set TIR target to approximately 60%. See the section clinical application of time in ranges for additional information regarding target goal setting in pediatric management.

  • #See the section older and/or high-risk individuals with diabetes for additional information regarding target goal setting.