If a participant agrees, after obtaining informed consent, the investigator will measure and record temperature, blood pressure, heart rate, height and weight. The participant will be given detailed instruction on how to hold the container and will be asked to spit (or deposit) their saliva up to the indicated line. The procedure will be performed twice to study the reproducibility of the test. The participant will then be asked to have a standard blood draw of 2-3 mls of blood into a vacutainer tube for analysis of HbA1c at the central lab and 1-2 mls of blood for glycated albumin for assay analysis, and a finger stick for point of care HbA1c measurement.

Plan:

1. Consent an individual
2. Measure and record temperature, blood pressure, heart rate, height and weight
3. Obtain two samples of saliva for the SmartAlbu portable salivary sensor
4. Take a venous blood sample for HbA1c and
5. Glycated albumin
6. Obtain blood sample from a finger stick for point of care HbA1c device

Whether the ratio of glycated albumin and total albumin in saliva is equivalent to blood.

To investigate whether the non-invasive SmartAlbu portable salivary sensor is as accurate as standard tests that measure HbA1c.