Baseline Model
A model comparison procedure was performed to identify relevant terms for the baseline model using the dredge function of the The data input into the model comprised a panel with 1 row per participant day (ie, n valid participants × m study days, where the number of valid participants was determined by the number of participants meeting density criteria for the relevant channel, and the number of study days was determined by the number of study days with valid wear time for each of the n participants). The model included 3 fixed effects for the first, second, and third expansion of the week of the year (denoted by “week,” “week