The HbA1c test measures the average blood sugar level in a period of two to three months. It evaluates the percentage of hemoglobin that was linked to glucose during that period. This test is often used as indicative of the long-term management of one’s blood sugar levels.

When blood sugar levels are high, a bigger amount of glucose gets linked to hemoglobin. Consequently, a high percentage of HbA1c is representative of an inefficient blood sugar monitoring.

The results of the HbA1c test are generally given in percentage. Ideally, the HbA1c percentage should be equal to or below 7% (for people living with type 1 diabetes). Doctors may recommend a specific target number based on the patient’s individual objectives. Regular HbA1c tests are important to evaluate the effectiveness of type 1 diabetes treatment and adjust the treatment plan accordingly.

¹³ AJD. 2024. La mesure de l’hémoglobine glyquée. Aide aux Jeunes Atteintes de diabète de type 1. https://www.ajd-diabete.fr/vivre-avec-un-diabete-de-type-1/prise-en-charge-du-diabete-de-type-1/le- suivi/