Behavioural Economics-based Incentives in Adults With Type 2 Diabetes Pilot Study

Inclusion Criteria:

• Chinese adults aged 30-70 years
• Capable of providing informed consent
• Resident in Hong Kong
• Able to communicate in English or Chinese
• Newly diagnosed with type 2 diabetes within a year according to World Health Organization guidelines: HbA1c ≥ 48 mmol/mol (≥ 6.5%); fasting plasma glucose ≥ 7.0 mmol/l (≥ 126 mg/dl); oral glucose tolerance test (OGTT) ≥ 11.1 mmol/l (200 mg/dl) with symptoms, or on two separate occasions if asymptomatic
• HbA1c ≤ 7.5%
• Not taking any medication for glycaemic control
• Willing to take blood tests
• Access to a smart phone to track physical activity
• Physically mobile for duration of the trial

Exclusion Criteria:

• Already participating in another intervention study
• Any health condition prohibiting them from completing the 9-month trial, such as history of eating disorder, cancer, serious illness, breastfeeding
• Medical conditions that can affect HbA1c measurements including anaemia, haemoglobinopathies, haemodialysis, iron/B12 deficiency or supplements, chronic liver diseases, splenectomy, rheumatoid arthritis, use of anti-retroviral drugs, ribavirin, or aspirin
• Intend to receive medication for glycaemic control in the next 6 months
• Intend to seek private medical treatment for diabetes in the next 6 months