Table 1 Characteristics of the included studies
Studies | Country/design | Sample size | Mean age (years) | Follow-up (months) | 30-day/6-month mortality | 1-year/>1-year mortality |
|---|---|---|---|---|---|---|
Holmes 2000 [8] | UK/PC | 731 | 82.1 | 24 | 6 m D: 118/294 ND:93/409 | 1y D: 143/294 ND:121/409 > 1y D: 181/294 ND:159/409 |
Hannan 2001 [11] | USA/PC | 571 | ≥70* | 6 | 6 m D: 34/141 ND:43/430 | NR |
Mortimore 2008 [9] | USA/PC | 674 | 81.1 | 24 | NR | > 1y D: 49/120 ND:120/554 |
Pretto 2010 [10] | Switzerland/PC | 272 | 84 | 12 | NR | 1y D:33/91 ND:24/172 |
Hershkovitz 2010 [12] | Israel /PC | 376 | 82.3 | 24 | NR | > 1y D: 59/237 ND:9/137 |
Julieb 2010 [14] | Norway/PC | 331 | 85.1 | 12 | NR | 1y D: 14/50 ND:14/138 |
Frost 2011 [7] | Australia/ PC | 1504 | 80.2 | 1 | 30d D: 20/214 ND:63/1290 | NR |
Khan 2013 [15] | UK/PC | 467 | 80.2 | 1 | 30d D: 14/110 ND:21/357 | NR |
Kim 2013 [24] | Korea/RC | 506 | 77.2 | 1 | 30d D: 0/40 ND:11/466 | NR |
Lee 2013 [16] | Korea/PC | 790 | 77.8 | 72 | NR | > 1y D: 51/78 ND:321/712 |
Cenzer 2016 [23] | USA/RC | 857 | 84 | 12 | NR | 1y D: 49/133 ND:186/724 |
Tolppanen 2016 [20] | Finland/PC | 134,144 | 79.9 | 36 | NR | > 1y D: 22240/67072 ND:17771/67072 |
Ruggiero 2017 [17] | Italy/PC | 514 | 83.1 | 12 | NR | 1y D: 20/102 ND:56/412 |
Reig 2017 [18] | Spain/PC | 331 | 83 | 1 | 30d D: 9/92 ND:29/239 | NR |
Sheikh 2017 [19] | UK/PC | 1356 | 81.4 | 1 | 30d D: 9/97 ND:109/1259 | NR |
Karres 2018 [21] | Netherlands/RC | 1050 | 80 | 1 | 30d D: 15/131 ND:49/615 | NR |
Mitchell 2017 [22] | Australia /RC | 27,888 | ≥ 65 | 12 | NR | 1y D: 2970/7132 ND:3977/19219 |
Jantzen 2018 [13] | Denmark /PC | 122,923 | 80.6 | 12 | 30d D: 849/5230 ND:11372/117693 | 1y D:2334/5230 ND:32048/117693 |