You will be asked to do the following today:
- complete a consent form agreeing to participate in this study
- provide a sample of your blood (about 20 ml, equivalent to about 4 teaspoons) for research. This sample will be obtained from the same venepuncture used in your routine donation
- wear a clip device around your finger for about one minute for a non-invasive haemoglobin test.
About one week from today, you will receive an email message asking you to complete a brief (15 minute) online questionnaire about your personal details, health, and lifestyle. We will also ask about your individual characteristics that are associated with skin tone (e.g. eye and hair colour) to evaluate variability in the performance of the non-invasive devices according to skin tone.