Table 2.

Descriptive statistics of laboratory subjective impulsivity and impulsive behavior trait, and regression analysis of mobile sensor data as predictors of impulsivity trait scales and subscales.

Scale and subscale		Descriptive statistics, mean (SD)	Regression summary	Significant features
BIS-15		1.77 (0.36)	F4,21=1.36; P=.28; R2=0.055	None
	Motor	1.74 (0.45)	F6,19=2.42; P=.07; R2=0.254	Screen entropy (β=.24; P=.05)
	Nonplanning	1.84 (0.54)	F4,21=3.76; P=.02; R2=0.307	Screen deviations (β=.33; P=.002)
	Attention	1.66 (0.49)	F2,23=1.19; P=.32; R2=0.015	None
UPPS		2.04 (0.36)	F4,21=3.48; P=.02; R2=0.284	Call entropy (β=−.21; P=.01)
	Urgency	2.07 (0.66)	F7,18=1.16; P=.21; R2=0.135	Call entropy (β=−.39; P=.04)
	Lack of perseverance	1.57 (0.42)	F4,21=3.35; P=.03; R2=0.273	Screen deviations (β=.22; P=.006)
	Lack of premeditation	1.73 (0.35)	F4,21=1.27; P=.31; R2=0.042	None
	Sensation seeking	2.66 (0.64)	F9,16=5.54; P=.002; R2=0.621	Battery frequency (β=.27; P=.01); screen usage (β=.39; P=.01); call entropy (β=−.60; P=.001)