Table 2.

QALY and the ICER in Users and Non-Users of the Self-Care Management System

	User (n=153)	Non-user (n=153)	Difference
QALY acquired in 1 year	0.686	0.653	+0.044
Inpatient medical expenses in cardiology (¥)	129,434,176	156,329,832	−26,895,656
Expense for unscheduled outpatient visits in cardiology (¥)	312,840	97,200	215,640
Total medical expenses in cardiology (¥)	129,747,016	156,427,032	−26,680,016
Costs of the system (¥)	50,000	0	50,000
Total cost (¥)	129,797,016	156,427,032	−26,630,016
ICER (¥/QALY)	–	–	Dominant

ICER, incremental cost-effective ratio; QALY, quality-adjusted life-years.