Skip to main content

Table 1 Study characteristics

From: Epilepsy surgery for refractory seizures: a systematic review and meta-analysis in different complications

Author Year Country/province Sampling method Study design Study duration Female to male Participants Age mean ± SD or range Seizure free (Engel class 1a)
Vale et al. [25] 2013 USA Convenience Retrospective 1998–2012 1.04 483 4–75 (36.7) N/A
Srikijvilaikul [41] 2018 Thailand Convenience Retrospective 2011–2015 0.98 194 27.9 ± 15.1 N/A
Espinoza-Velázquez et al. [42] 2014 Mexico Convenience Retrospective 1992–2013 N/A 227 N/A N/A
Ozlen et al. [28] 2010 Turkey Convenience Retrospective 2004–2009 1.33 70 23.4 ± 11.9 N/A
Ipekdal et al. [29] 2010 Turkey Convenience Retrospective 2000–2010 2.5 58 25–45 (33.3) N/A
Ahmedo et al. [30] 2018 Turkey Convenience Retrospective 2009–2017 0.96 53 19–55 (30.4 ± 9) N/A
Hedegard et al .[31] 2013 Sweden Convenience Retrospective 1996–2010 0.94 271 2–58 (26) N/A
Dunkley et al .[43] 2010 UK Convenience Retrospective -- 0.75 42 3–36 months (20 months) 48% (20)
Heller et al .[26] 2009 USA Convenience Retrospective 1998–2005 N/A 190 N/A N/A
Binder et al .[33] 2009 Germany Convenience Retrospective 1990–2004 1.35 40 25 57.5% (23)
Lee et al .[34] 2009 Korea Convenience Retrospective 1997–2006 0.84 92 3 months–36 years N/A
d’Orio et al .[35] 2017 Italy Convenience Retrospective 1997–2014 0.43 50 50–62 (53.8) 78% (39)
Bjellvi et al. [32] 2015 Sweden Convenience Retrospective 1996–2015 0.95 865 2 months–69 years (24) N/A
Rolston et al. [27] 2016 USA Convenience Retrospective 2000–2013 1.02 6200 18–90 (45.6 ± 16.8) N/A
Vermeulen et al. [36] 2016 Belgium Convenience Retrospective 1998–2012 1.14 199 14–64 (40) 77% (153)
Mathon et al. [37] 2017 France Convenience Retrospective 1990–2015 1.11 389 (36.7) 83.7% (302)
Panigrahi et al .[38] 2016 India Convenience Retrospective - 0.75 697 30.4 ± 12.4 N/A
Tanriverdi et al. [39] 2009 Canada Convenience Retrospective   1.02 1905 (30.4) N/A
Wellmer et al. [40] 2012 Germany Convenience Retrospective 2002–2008 0.75 502 N/A 49.7% (82)
  1. N/A non applicable, SD standard deviation