Table 2.

Event Rates, by Age Group

	Overall (n=48,711)	65–74 yrs old (n=16,095)	75–84 yrs old (n=18,525)	85+ yrs old (n=14,091)
All-cause mortality
30-day all-cause mortality	2,806 (5.8%)	549 (3.4%)	976 (5.3%)	1,281 (9.1%)
1-year all-cause mortality	16,678 (34.2%)	3,980 (24.7%)	6,175 (33.3%)	6,523 (46.3%)
All-cause readmission
30-day all-cause readmission	10,640 (21.8%)	3,534 (22.0%)	4,087 (22.1%)	3,019 (21.4%)
1-year all-cause readmission	31,066 (63.8%)	10,256 (63.7%)	12,057 (65.1%)	8,753 (62.1%)
All-cause mortality or readmission
30-day all-cause mortality or readmission	12,071 (24.8%)	3,779 (23.5%)	4,574 (24.7%)	3,718 (26.4%)
1-year all-cause mortality or readmission	34,903 (71.7%)	10,936 (67.9%)	13,293 (71.8%)	10,674 (75.8%)