Table 1.

Adverse outcomes in association to frailty examined in studies including participants with a mean age of >75 years

Outcome	Number of studies
		1	2	3	4	5	6	7	8	9	10
Mortality
1-year mortality	Quality	QI85	QI21	QI86	QI87	QI88	Q289	Q290	Q223	Q224	Q291
n=10	N sample	100	275	244	12979	218	159	30	213	450	410
2-year mortality	Quality	QI88
n=1	N sample	218
5-year mortality	Quality	QI92
n=1	N sample	178
30-day mortality	Quality	QI85	QI93	QI94	QI97	Q222	QI98
n=6	N sample	100	176	184	178	400	325
90-day mortality	Quality	QI87	QI98
n=2	N sample	12979	325
Post-operative complications
Non-routine recovery	Quality	QI99	QI94	Q289	Q2100	QI101	QI21	QI102	QI103	QI86
n=10	N sample	178	184	159	83	152	275	125	35	244
Need for resuscitation	Quality	Q223
n=1	N sample	213
Delirium	Quality	QI103
n= 1	N sample	35
MACCE	Quality	QI85	Q223	Q290
n=3	N sample	100	213	30
Discharge
Length of stay	Quality	QI97	QII03	QI98	Q291	Q289	QI102
n=6	N sample	178	35	325	410	159	125
Discharge to institution	Quality	QI21	Q291
n=3	N sample	275	410
Functional decline	Quality	QI102
n= 1	N sample	125
Post-discharge
Readmission rate:	Quality	Q291	QI98
1 year	N sample	410	325
n=2
Functional decline	Quality	QI104	Q2105
n=2	N sample	119	84
		at 6 months	16–28 months
Quality of life:	Quality	QI86
6 months, 1 year	N sample	244
n= 1

Note: Dark and light shades represent significant and non-significant associations, respectively.

Abbreviations: P, prospective study; R, retrospective study; Q1, quartile one quality assessment; Q2, quartile two quality assessment; MACCE, Major Cardiac and Cerebral Adverse Events; n, number of studies.