Table 2.
Overview of Included Studies
| Author | Country | Years | Type of Study | Recruitment period | Participants (n) | Gender (FM) | Age (mean ± standard) | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Coil | Clip | Coil(%) | Clip(%) | Coil | Clip | |||||
| Kelly et al. | Canada | 2010 | RCS | 1995-2004 | 778 | 2342 | 67 | 65.5 | 54.4 | 53.7 |
| Choi et al. | Korea | 2016 | RCS | 2008-2012 | 8 | 30 | 62.5 | 60 | 64.75±11.47 | 53.17±11.96 |
| Ayling et al. | Canada | 2015 | RCS | 2005-2006 | 212 | 181 | NA | NA | NA | NA |
| Berro et al. | France | 2019 | RCS | 2012-2015 | 48 | 42 | 68.8 | 81 | 52 ± 10.8 | 52.6 ± 11.7 |
| Darsaut et al. | Canada | 2019 | RCS | 2012-2017 | 48 | 55 | 65 | 67 | 56.5 | 58.5 |
| Zanaty et al. | USA | 2016 | RCS | 2010-2015 | 182 | 70 | 73.6 | 67.1 | 56.6±12.4 | 55.9±12.7 |
| Heit et al. | USA | 2017 | RCS | 2010-2014 | 50 | 50 | 62 | 52 | 55±11.67 | 50±12.59 |
| Scheller et al. | Germany | 2018 | RCS | 2010-2015 | 45 | 54 | 55.8 | 75.9 | 60±13.75 | 57±13.75 |
| Koh et al. | Singapore | 2013 | RCS | 2005-2009 | 23 | 33 | 65.2 | 54.5 | 52.8 ± 11.6 | 54.1 ± 13.9 |
| Shen et al. | China | 2019 | RCS | 2013-2018 | 29 | 65 | 62 | 69 | 65.86±11.597 | 59.92±10.603 |
| Zhao et al. | China | 2016 | prospective | 2010-2012 | 133 | 129 | 46.6 | 53.5 | 54.5 ±11.8 | 54.4±10.9 |
| McDonald et al. | USA | 2014 | RCS | 2006-2011 | 1227 | 1227 | 65 | 66 | 53±13.33 | 53±12.59 |
| Yu et al. | China | 2007 | RCS | 1995-2001 | 80 | 89 | 60 | 62.9 | 56±13 | 57±13 |
| Bekelis et al. | Lebanon | 2016 | RCS | 2007-2012 | 2004 | 1206 | 73.4 | 77.2 | 75.3±6.8 | 73.5±6.2 |
| Li et al. | China | 2017 | RCS | 2002-2010 | 77 | 85 | 59.7 | 54.1 | 47.5±10.3 | 48.1±11.6 |
| Deutsch et al. | USA | 2018 | RCS | 2013-2014 | 15350 | 6555 | 65.9 | 69..0 | 55.3±33.45 | 54.1±31.58 |
| Ryttlefors et al. | UK | 2008 | RCS | NA | 138 | 140 | 68.8 | 74.3 | NA | NA |
| Wadd et al. | Pakistan | 2015 | RCS | 2010-2013 | 70 | 70 | 60 | 60 | 52.5±10 | 51±10 |
| Hoh et al. | USA | 2010 | RCS | 2002-2016 | 3564 | 5783 | 68 | 69 | 55.0±14.0 | 53.1±13.0 |
| Brunken et al. | Germany | 2009 | RCS | 1990-2004 | 145 | 370 | NA | NA | 53.7±15.5 | 50.7±16 |
| Taweesomboonyat et al. | Thailand | 2019 | RCS | 2002-2018 | 84 | 105 | 81 | 74.3 | 64.3±13.9 | 56.5±11.4 |
| Zhao et al. | China | 2019 | RCS | 2008-2015 | 46 | 65 | 52.2 | 55.4 | 54.5±11.2 | 55.5±11.1 |
| Klompenhouwer et al. | Netherlands | 2011 | RCS | 2000-2008 | 230 | 173 | 70.4 | 69.9 | 53.6 | 53.1 |
| Liao et al. | China | 2013 | RCS | 2008-2009 | 56 | 44 | 68 | 61 | 57.91±11.89 | 56.93±13.75 |
| Zhang et al. | China | 2012 | RCS | 2005-2009 | 76 | 122 | 64.5 | 72.95 | 51.7±13.0 | 52.8±10.4 |
| Lusseveld et al. | Netherlands | 2002 | RCS | 1983-1999 | 44 | 44 | 66 | 59 | 47.0 | 44.2 |
| Varelas et al. | USA | 2006 | RCS | 2000-2004 | 48 | 135 | 45 | 66 | 51±15 | 53±14 |
| Hoh et al. | USA | 2011 | RCS | 2002-2007 | 4306 | 6593 | NA | NA | NA | NA |
| Li et al. | China | 2012 | RCS | 2005-2009 | 94 | 92 | 27.7 | 32.6 | 54.7±14.2 | 53.7±13.8 |
| Liu et al. | China | 2013 | RCS | 2001-2005 | 281 | 361 | 60.5 | 66.8 | 55.6±15.21 | 56.90±13.36 |
| Gross et al. | USA | 2014 | RCS | 2007-2013 | 52 | 203 | 75 | 75 | NA | NA |
| Suzuki et al. | Japan | 2013 | Prospective | 2006-2007 | 297 | 282 | 65.7 | 69.9 | 62.4 ± 14.6 | 60.2 ± 12.5 |
| Zaidat et al. | USA | 2009 | RCS | 1999-2005 | 98 | 118 | 72 | 72 | 58 ±1.5 | 52 ±1.25 |
| McDougall et al. | USA | 2012 | RCT | 2003-2007 | 233 | 238 | 71 | 70 | 54.3 ± 12.0 | 53.1 ± 12.8 |
| Molyneux et al | Europe | 2005 | RCT | 1994-2002 | 1073 | 1070 | 63 | 63 | 52 | 52 |
| Koivisto et al. | Finland | 2000 | RCT | 1995-1997 | 52 | 57 | 46.1 | 59.6 | 49±14.25 | 50±15.25 |
| Niskanen et al. | Finland | 2004 | RCS | 1997-2000 | 68 | 103 | 52.9 | 57.3 | 54 ±13 | 54±13 |
| Rabinstein et al. | USA | 2003 | RCS | 1990-2000 | 76 | 339 | 62 | 65 | 56 | 53 |
| Li et al. | China | 2021 | RCS | 2015-2020 | 329 | 329 | NA | NA | NA | NA |
| Kim et al. | Korea | 2008 | RCS | 1999-2006 | 37 | 35 | 62.2 | 57.1 | 54±13 | 45±12 |
Note: NA = not available; RCT = randomized controlled trial; RCS = Retrospective comparative study; FM = female