Figure 3: Women in the PPD and non-PPD cohorts wore their Fitbit for the same number of hours per day across time periods of pregnancy.

*PPD-eq = PPD-equivalent

The number of hours per day women in the PPD and non-PPD cohorts wore their wearable device during the pre-pregnancy (top left), pregnancy (top right), postpartum (bottom left), and PPD (or PPD-equivalent; bottom right) time periods. Data in the PPD and non-PPD cohorts were compared using linear mixed-effects models with person ID as the random effect adjusted for age at PPD diagnosis and race/ethnicity and are expressed as mean ± standard error.