Table 1. Characteristics of studies included in the systematic review and meta-analysis.
| Reference | Year | Region | Centers | Sample size | Inclusion period | Valve type (%) | Age (years) | Male, n (%) | PPI at discharge, n (%) | STS-PROM (%) | EuroSCORE (%) | Follow-up | NOS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Walther et al. (10) | 2018 | Europe, Australia | 12 | 194 | Dec 2011–Sep 2015 | SE (100.0) | 83.1±4.7 | 45 (22.7) | 29 (14.9) | N/A | N/A | 12 months | 8 |
| Rogers et al. (14) | 2018 | United States | 1 | 614 | Jan 2013–Dec 2015 | BE (78.0), SE (22.0) | 83±9 | 283 (46.1) | 145 (23.6) | 8.6±4.6 | N/A | 12 months | 8 |
| Chamandi et al. (15) | 2018 | International | 9 | 1,629 | May 2009–Feb 2015 | BE (50.3), SE (49.7) | 81±7 | 949 (58.3) | 322 (19.8) | 7.0±5.4 | N/A | 48 [36–60] months | 9 |
| López-Aguilera et al. (16) | 2018 | Spain | 1 | 217 | Apr 2008–Dec 2015 | SE (100.0) | 78±6 | 102 (47.0) | 39 (15.0) | 11.4±10.0 | 16±10 | 37±27 months | 8 |
| Nijenhuis et al. (17) | 2017 | Netherlands | 1 | 155 | Jun 2007–Jun 2015 | BE (45.0), SE (55.0) | 80±7 | 78 (50.3) | 37 (23.9) | N/A | 23±15 | 18.6 [5.4–37.4] months | 7 |
| Marzahn et al. (18) | 2018 | Germany | 1 | 856 | Jul 2008–May 2015 | BE (57.9), SE (42.1) | 80.5±6.1 | 379 (44.3) | 145 (16.9) | N/A | 15.40% | 12 months | 8 |
| Fadahunsi et al. (19) | 2016 | United States | 229 | 9,785 | Nov 2011–Sep 2014 | BE (88.7), SE (11.3) | 84 (78-88) | 4,621 (47.3) | 651 (6.7) | 6.7 (4.5–11.2) | N/A | 12 months | 9 |
| Giustino et al. (20) | 2016 | International (European) | 4 | 947 | Nov 2005–Dec 2011 | BE (47.9), SE (52.1) | 80.0±7.0 | 485 (51.2) | 164 (17.3) | 8.6±6.6 | 22.0±12.9 | 425 [255–712] d | 8 |
| Engborg et al. (21) | 2017 | Denmark | 1 | 128 | Mar 2008-Sep 2012 | BE (21.9), SE (78.1) | 80.7±5.5 | 58 (45.3) | 41 (32.0) | N/A | 17.1±11.9 | N/A | 7 |
| Nazif et al. (8) | 2015 | International | 21 | 1,973 | May 2007–Sep 2011 | BE (100.0) | 84.3±7.2 | 955 (48.4) | 173 (8.8) | N/A | 11.3±4.0 | 12 months | 8 |
| Mouillet et al. (22) | 2015 | International | 29 | 833 | Jan 2010–Oct 2011 | SE (100.0) | 82±7 | 489 (58.7) | 252 (30.3) | 14.1±11.2 | 20.7±14.1 | 242±179 d | 8 |
| Kawaguchi et al. (23) | 2015 | France | 1 | 160 | Feb 2010–Jun 2012 | BE (33.8), SE (66.3) | 83.3±7.1 | 88 (55.0) | 28 (17.5) | 20.4±12.5 | 23.1±18.1 | 24 months | 8 |
| Schymik et al. (24) | 2015 | International | 1 | 634 | May 2008–April 2012 | BE (80.8), SE (19.2) | 82.0 ±4.5 | 243 (38.3) | 69 (10.8) | N/A | 21.71±13.14 | 12 months | 8 |
| Biner et al. (25) | 2014 | Israel | 1 | 230 | N/A | BE (12.6), SE (87.4) | 83±5 | 88 (38.3) | 58 (25.2) | N/A | 26±14 | 19.5 months | 7 |
| Urena et al. (26) | 2014 | International | 8 | 1,556 | Jan 2005–Feb 2013 | BE (55.1), SE (44.9) | 80±8 | 740 (47.6) | 239 (15.4) | 7.6±5.3 | 20.5±14.0 | 22±17 months | 8 |
| Pereira et al. (27) | 2013 | Portugal | 1 | 56 | Aug 2007–May 2011 | SE (100.0) | 79.3±6.5 | 30 (46.2) | 19 (33.9) | N/A | 22.7±13.3 | 10.3±5.4 months | 7 |
| Buellesfeld et al. (28) | 2012 | Switzerland, Germany | 2 | 305 | Aug 2007–Mar 2010 | BE (10.5), SE (89.5) | 82.6±6.1 | 126 (41.3) | 98 (32.1) | N/A | 25.0±15.0 | 12 months | 8 |
| Houthuizen et al. (29) | 2012 | Netherlands | 8 | 797 | Nov 2005–DEC 2010 | BE (43.0), SE (57.0) | N/A | N/A | N/A | N/A | N/A | 449.5 [174–834] d | 8 |
| De Carlo et al. (30) | 2012 | Italy | 3 | 275 | Sep 2007–Jul 2010 | SE (100.0) | 82.4±5.9 | 128 (46.5) | 66 (24.0) | N/A | 22.7±14.1 | 12 months | 8 |
| D’Ancona et al. (31) | 2011 | Germany | 1 | 322 | N/A | BE (100.0) | 79.3±8.3 | 107 (33.2) | 20 (6.2) | 18.5±16.0 | 37.4±20.6 | 12 months | 8 |
NOS, Newcastle-Ottawa scale.