Table 2.

Summary of features used in our experiments.

Feature	Intelligent ICU	Conventional ICU
	(n = 51)	(n = 48,400)
	Median (25th, 75th)	Median (25th, 75th)
Vital signs
Diastolic blood pressure, mmHg	62.3 (53.0, 73.0)	63.0 (54.0, 73.0)
Systolic blood pressure, mmHg	123.0 (110.0, 139.0)	121.0 (107.0, 137.5)
Heart rate, beats/min	91.0 (80.0, 103.0)	85.0 (74.0, 97.0)
Respiratory rate, breaths/min	18.3 (15.0, 22.5)	18.0 (15.0, 21.0)
Oxygen saturation (SpO2), %	98.0 (95.0, 100.0)	97.0 (95.0, 99.0)
Temperature, °C	37.0 (36.7, 37.5)	36.9 (36.7, 37.3)
Wrist activity, action counts
Minimum	0.0 (0.0, 0.0)	N/A
Maximum	62.7 (39.5, 97.1)	N/A
Mean	2.9 (1.2, 6.3)	N/A
Variance	58.6 (16.3, 135.5)	N/A
Standard deviation	7.7 (4.0, 11.6)	N/A
IQR	1.8 (0.0, 8.0)	N/A
RMSSD	7.1 (4.2, 11.6)	N/A
RMSSD standard deviation	1.0 (0.9, 1.1)	N/A
Number immobile	0.6 (0.4, 0.8)	N/A