Table 1.

Characteristics of My Health Manager Patient and Caregiver Proxy Users

	Onset of serious illness		Near end of life
	Patients (N = 6129)	Caregiver/proxy users (N = 148)	Patients (N = 6517)	Caregiver/proxy users (N = 163)
Characteristic
Age,a mean (SD)	70.4 (14.2)	59.6 (12.9)	76.7 (13.7)	61.0 (13.0)
Female, %	56.9	75.0	49.9	77.9
Care Group,b %
Group 2: chronic illness			15.3
Group 3: advanced illness			21.1
Group 4: frailty and end of life	100		63.6
Race, %
American Indian/Alaska Native	0.9	0	<1.0	1.2
Asian	1.9	4.7	1.4	2.5
Black or African American	3.4	4.7	2.5	<1.0
Native Hawaiian/Pacific Islander	0.2	0	<1.0	<1.0
White	81.1	79.7	83.6	81.6
Other	3.6	3.4	3.3	3.7
Unknown or not reported	8.9	7.4	8.3	9.8
Hispanic, %	10.3	9.3	7.2	14.1
Portal tool use, mean (SD)
Care team information	7.0 (8.7)	0 (0)	10.8 (12.0)	0 (0)
Cost and coverage	1.1 (2.6)	0 (0.09)	0.9 (2.4)	0.01 (0.13)
Health management guides	2.4 (4.3)	0.04 (0.47)	1.4 (3.0)	0.02 (0.36)
Laboratory and test results	11.7 (16.5)	0.19 (1.94)	11.4 (16.8)	0.19 (2.15)
Medical record	9.9 (13.4)	0.12 (1.31)	4.6 (8.5)	0.08 (1.26)
Medications	11.5 (17.8)	0.16 (1.99)	9.4 (16.2)	0.11 (1.65)
Recently added (eChat/eVisit)	25.0 (28.8)	0.26 (2.83)	11.2 (19.0)	0.16 (1.89)
Patient–provider communication	24.0 (25.8)	0.50 (4.50)	20.8 (25.6)	0.43 (4.41)
Visits and appointments	16.8 (22.4)	0.34 (3.66)	13.6 (19.1)	0.29 (3.53)

^a Patient age was calculated at time of Care Group flag for onset of serious illness or at date of death for the near end-of-life cohort. Caregiver age was calculated at the end of the study period.

^b Care Group flag in the last 12 months of life; if there are multiple flags, the Care Group closest to the time of death is reported.

SD, standard deviation.