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Scatterplot of the relationship between CA-recorded and MS-reported sleep duration (mean number of hours asleep per night across the 2-week study period), stratified by group (A: SRC; B: contact control). The relationship between self-reported and objective-recorded sleep duration was stronger in the control (r = 0.65) than in the sport-related concussion group (r = −0.21). CA, commercially available actigraphy; MS, mobile survey.
