Figure 1.

Study design and typical day during camp. While remote monitoring was 24 h per day, its architecture during skiing was adapted to the heightened risk: one study physician and at least one study team member were located at the resort (base camp) and monitored all subjects. Each skiing group of four to five campers was led by one Riding On Insulin instructor and followed by a study team member, charged with all protocol activities, and equipped with replacement material, snacks, water, and emergency treatments. Data were transmitted to base camp via DWM, and all groups and base camp remained in communication using two-way radio.