Monitoring Sleep, Wellbeing, and Glucose Metabolism in PGY1s

Overnight on-call schedules can impact sleep, wellbeing, and alertness, which can be detrimental on the performance, physical and mental health of residents. Moreover, rotating shift work may have a long-term negative health impact (e.g. increased risk of diabetes). Within the National University Hospital (NUH), two different systems of rotating on-call schedules are implemented. In the night float system, residents work from 8 pm to 8 am for 5 - 7 consecutive nights once every month, compared to the traditional overnight on-call system, where each resident is on call for 4-6 nights per month (7 am - 5 pm, followed by overnight call until 8 am the next morning). The aim of the current study is to track sleep, wellbeing, and glucose metabolism during the different phases of the night float and traditional on-call schedules.

Inclusion Criteria:NUHS Postgraduate year 1 doctorsAbove 21 years of ageCompleting their year 1 rotations in 2021 or 2022Exclusion Criteria:As this is an observational study with minimal risk, in an restricted pool of participants, no further exclusion criteria will be applied for participation.