Table 2.

Comparison of SAVR and TAVI by Age and Year of Procedure

	SAVR	TAVI	P value
In-hospital mortality
<70 years	1.7 (63/3,608)	2.6 (2/76)	0.562
70–74 years	2.2 (69/3,109)	3.3 (8/239)	0.262
75–79 years	2.7 (120/4,525)	1.7 (14/810)	0.122
80–84 years	3.2 (120/3,796)	1.3 (34/2,678)	<0.001
85–89 years	3.7 (42/1,131)	1.6 (53/3,295)	<0.001
≥90 years	5.4 (7/129)	2.1 (26/1,240)	0.019
LOS after main procedure (days)
<70 years	16 [13–22]	11 [8–18]	0.486
70–74 years	17 [14–23]	12 [8–19]	<0.001
75–79 years	18 [14–25]	10 [7–15]	<0.001
80–84 years	19 [15–27]	10 [7–14]	<0.001
85–89 years	20 [16–29]	11 [8–16]	<0.001
≥90 years	21 [15–29]	11 [8–17]	<0.001
Medical costs (JPY)
<70 years	4,444,630 [4,010,313–5,143,133]	6,038,855 [5,595,208–7,048,298]	<0.001
70–74 years	4,511,540 [4,108,205–5,203,270]	6,142,040 [5,550,870–7,074,290]	<0.001
75–79 years	4,606,300 [4,177,330–5,293,720]	5,941,760 [5,592,983–6,582,138]	<0.001
80–84 years	4,647,795 [4,215,373–5,408,115]	5,869,765 [5,532,495–6,542,023]	<0.001
85–89 years	4,807,190 [4,322,950–5,660,470]	5,954,200 [5,574,510–6,715,220]	<0.001
≥90 years	5,192,340 [4,551,765–6,021,320]	6,070,120 [5,644,175–6,891,508]	<0.001
In-hospital mortality
2014	2.7 (103/3,825)	2.5 (14/559)	0.796
2015	2.6 (108/4,146)	1.5 (18/1,197)	0.027
2016	2.7 (112/4,220)	1.6 (40/2,515)	0.004
2017	2.4 (98/4,107)	1.6 (65/4,067)	0.011
LOS after main procedure (days)
2014	18 [14–25]	10 [8–16]	<0.001
2015	18 [14–25]	11 [8–16]	<0.001
2016	18 [14–25]	11 [8–16]	<0.001
2017	17 [14–24]	10 [7–14]	<0.001
Medical costs (JPY)
2014	4,554,060 [4,109,925–5,264,235]	6,210,960 [5,952,550–6,973,150]	<0.001
2015	4,579,170 [4,144,098–5,327,608]	6,219,850 [5,894,310–6,995,625]	<0.001
2016	4,579,285 [4,144,700–5,306,113]	5,946,910 [5,567,490–6,693,220]	<0.001
2017	4,591,450 [4,152,760–5,299,180]	5,775,740 [5,476,960–6,512,690]	<0.001

Data are presented as the median [interquartile range] or as the percentage (n/N). LOS, length of hospital stay; SAVR, surgical aortic valve replacement; TAVI, transcatheter aortic valve implantation.