About this trial
The goal of this observational study is to examine whether passively collected wearable data can be used to predict onset and severity of postpartum depression and anxiety symptoms. The main questions it aims to answer are:
1. When do depression and anxiety symptoms emerge, worsen, and improve across the first 6 months postpartum? 2. Can machine learning/artificial intelligence models prospectively predict clinically significant depression symptoms using Apple Watch metrics?
Women who have given birth within the past 2 months and who live in Hawai'i will be eligible for the study. Participants will wear an Apple Watch and answer weekly online survey questions until they reach 6 months postpartum. The study is designed to be fully remote to maximize accessibility across the Hawaiian Islands.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Be at least 18 years old;
Be within two months after giving birth at the time of enrollment;
Live in Hawai'i;
Have access to an iPhone that is compatible with the study-specific iOS application and Apple Watch;
Disqualifiers
Less than 18 years old;
Has not given birth within the past 2 months;
Does not live in Hawai'i;
Does not have access to a study-compatible iPhone;
Trial population
We will recruit postpartum women across the Hawaiian Islands who have given birth within the last 2 months.
Trial design
Cohort
Prospective
Treatments tested in this trial
Not listed
Trial groups
Trial outcomes
Primary outcomes
Clinically Significant Depression Score Assessed by EPDS
An Edinburgh Postnatal Depression Scale (EPDS) score \>= 11 will indicate a clinically significant depression score (Levis et al., 2020, BMJ).
Alternate Metric for Clinically Significant Depression Score Assessed by EPDS
An Edinburgh Postnatal Depression Scale (EPDS) score \>= 13 will be an alternative metric for clinically severe depression score (Levis et al., 2020, BMJ).
Clinically Significant Anxiety Score Assessed by GAD-7
GAD-7 Score \>= 10 (Solomonov et al., 2025, JAMA Network Open)
Alternate Metric for Clinically Significant Anxiety Score Assessed by GAD-7
GAD-7 score \>= 13 will be an alternate threshold for determining clinically significant anxiety symptoms (Simpson et al., 2014, Canadian Journal of Psychiatry)
Secondary outcomes
Clinically Significant Change in EPDS Scores
Change of \>= 4 between EPDS scores will indicate a clinically significant change (Matthey, 2004, Journal of Affective Disorders)
Clinically Significant Change in GAD-7 Scores
Change of greater than 3 on the GAD-7 (Stefana et al., 2026, Anxiety Disorders)
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
University of Hawaii
Lead sponsor
Apple Inc.
Collaborator
This trial is not recruiting at the moment. You can still explore other options: