Fig. 1: Flow diagram of participants and study procedures for BioBAYB study.

Of the 127 participants gave consent and enrolled into the study, 118 completed data collection with prelabor/birth data from the wearable smart ring. Comparison groups for analysis included those who gave birth prior to the Estimated Date of Delivery (EDD) through planned prelabor Cesarean or induced labor, those who experienced labor starting before the EDD and those whose pregnancies lasted beyond the clinical EDD. Study procedures listed in blue box, sent via REDCap questionnaires, smart ring metrics gathered.