The Pre-Diabetes Interventions and Continued Tracking to Ease-out Diabetes (Pre-DICTED) program: study protocol for a randomized controlled trial

Table 3 Schedule of study assessments for all participants

Study phase	Screening phase	Follow-up phase
Visit	Screening								End of study
Scheduled timeline in months (M) (from the date of baseline assessment)	Within -1 M	0 M	3 M	6 M	12 M	18 M	24 M	30 M	36 M
Participant referral	•
Informed consent	•
Inclusion/exclusion criteria		•
Medical history		•
Demographics		•
Randomization		•
*Physical examinations*
Weight, height, waist circumference		•	•	•	•	•	•	•	•
Heart rate		•	•	•	•	•	•	•	•
Systolic and diastolic blood pressure		•	•	•	•	•	•	•	•
*Laboratory assessments*
Cholesterol level: Total cholesterol, HDL-c, LDL-c, triglycerides		•		•	•	•	•	•	•
HbA1c		•		•	•	•	•	•	•
Fasting plasma glucose		•		•	•	•	•	•	•
2-hour plasma glucose		•			•		•		•
75 g OGTT		•^a			•		•		•
*Retinal photography*
Vision media opacity, diabetic retinopathy, diabetic maculopathy		•			•		•		•
*Questionnaires*
Food Frequency Questionnaire		•		•	•
Health status (EQ-5D-5L)		•		•	•	•	•	•	•
Physical activity (IPAQ)		•		•	•	•	•	•	•
Work impairment (WPAI:GH)		•		•	•	•	•	•	•

^aParticipants referred based on FPG alone will need to undergo OGTT at baseline
HDL-c high-density lipoprotein-cholesterol, LDL-c low-density lipoprotein-cholesterol

ISSN: 1745-6215