Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Estimated Relationship Between A1C and TIR Based on Adult Studies
| TIR (70–180 mg/dL) | A1C, % (39) | A1C, % (40) | |
|---|---|---|---|
| Percentage of CGM Readings | Time per Day | ||
| 20 | 4 hours, 48 minutes | 9.4 | 10.6 |
| 30 | 7 hours, 12 minutes | 8.9 | 9.8 |
| 40 | 9 hours, 36 minutes | 8.4 | 9.0 |
| 50 | 12 hours | 7.9 | 8.3 |
| 60 | 14 hours, 24 minutes | 7.4 | 7.5 |
| 70 | 16 hours, 48 minutes | 7.0 | 6.7 |
| 80 | 19 hours, 12 minutes | 6.5 | 5.9 |
| 90 | 21 hours, 36 minutes | 6.0 | 5.1 |
Adapted from ref. 28.
