Table 2.

Six data collection scenarios.

Scenario
Research Team Measurement (original protocol) Questionnaires via survey 24-h recall Accelerometers loaned to all Measurements, point-of-care blood work, and skin carotenoid scans by research staff
Clinic-Based Measurement Questionnaires via survey 24-h recall Accelerometers loaned to all Measurements and blood draw at clinic/office No skin carotenoid scan
Self-Measurement w/Bluetooth Devices Questionnaires via survey 24-h recall Pedometer to all At-home measurements with Bluetooth devices (scale and BP cuff) to all Self-measurement with tape measure to all Blood microsampling at home
Self-Measurement w/Standardized Basic Equipment Always Provided Questionnaires via survey 24-h recall Pedometer to all Self-measurement with basic equipment (scale, tape measure, and BP cuff) to all Blood microsampling at home
Self-Measurement w/Equipment Provided As Needed Only Questionnaires via survey, expanded to include questions on blood glucose, cholesterol, and BP 24-h recall Pedometer automatically provided to those who do not have pedometer or activity tracker Self-measurement basic equipment (scale and/or tape measure) provided to those who do not have one No measure of heart rate
Surveys w/Self-Measurement Only if Equipment Already Available to Participant Questionnaires via survey, expanded to include questions on body size, BP, blood glucose, and cholesterol; participants instructed to self-measure when equipment or information could be obtained.