The purpose of this study is to determine the stability of capillary HBA1c blood samples collected by the participant with this kit and mailed to the laboratory at Children's Mercy Hospital.

Participants are given home lab kit for obtaining HbA1c by capillary blood and shipping it to Children's Mercy Hospital and Clinics. They will mail in sample before their next visit and this result will be compared to the HbA1c performed during this visit.

Inclusion Criteria:

• Male or female diabetic patients ages 1-17 years who have an A1c test drawn within 24 hours
• Participants receiving medical care in the Endocrine Clinic at Children's Mercy Hospital

Exclusion Criteria:

• Not meeting above inclusion criteria

Male and females, age 1-17, receiving care in the Endocrine clinic at Children's Mercy Hospital who require HbA1c for standard of care.