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Box plots for comparisons among baseline, prelockdown, and during lockdown phases for different features. (a) homestay duration, (b) maximum distance from home, (c) Fitbit step count, (d) maximum number of nearby devices, (e) total sleep duration, (f) bedtime, (g) heart rate, (h) unlock duration, and (i) social app duration. *means P<.05, **means P<.01, ***means P<.001.
