Patient portal adoption and use by hospitalized cancer patients: a retrospective study of its impact on adverse events, utilization, and patient satisfaction

Table 3 Adverse Events, Postdischarge Care Utilization and Patient Satisfaction Among the portal Behavior Groups

Measures	Outcomes	Adopters (n = 2352)	Nonadopters (n = 2242)	P value	Active Inpatient Users (n = 632)	Inactive Inpatient Users (n = 1720)	P value
Patient safety	Had an adverse event, No. (%)	40 (1.7)	47 (2.1)	.36^a	13 (2.1)	27 (1.6)	.42^a
Postdischarge care utilization	Emergency visit within 14-days of discharge, No. (%)	272 (11.6)	214 (9.5)	.03^a	75 (11.9)	197 (11.5)	.78^a
Postdischarge care utilization	30-day unplanned readmission, No. (%)	299 (12.7)	222 (9.9)	<.01^a	96 (15.2)	203 (11.8)	.03^a
Patient satisfaction^c	Understand responsibilities for self-health management, mean score (SD)	87.6 (19.6)	85.5 (20.1)	.02^b	89.1 (18.4)	87.1 (20.0)	.22^b
	Understand the purpose for taking each medication, mean score (SD)	90.0 (18.8)	87.8 (20.9)	.05^b	91.8 (16.0)	89.4 (19.7)	.21^b
	Aggregate self-health management knowledge score	84.3 (21.3)	80.0 (23.1)	<.01^b	87.0 (19.2)	83.3 (21.9)	.05^b
	Overall rating of the hospital stay, mean score (SD)	95.6 (9.1)	95.3 (10.3)	.75^b	95.6 (10.5)	95.7 (8.6)	.56^b

^aPearson χ² test
^bWilcoxon nonparametric
^cSatisfaction survey was distributed to a random sample of discharges; thus, the sample size was as follows: adopters; n = 788, nonadopters; n = 646, active inpatient users; n = 205, and inactive inpatient users; n = 577

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