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Table 2 Overview on the event rate (with lower and upper limits, z value), weight and significance (p values) for piezosurgical approach and random effect

From: Membrane perforation rate in lateral maxillary sinus floor augmentation using conventional rotating instruments and piezoelectric device—a meta-analysis

Piezoelectric

Event rate

Lower limit

Upper limit

z value

p value

Weight

Wallace et al. 2007 [52]

0.005

0.000

0.074

− 3.741

0.000

1.660

Sohn et al. 2010 [53]

0.008

0.001

0.054

− 4.817

0.000

2.712

Toscano et al. 2010 [54]

0.009

0.001

0.125

− 3.328

0.001

1.655

He et al. 2013 [55]

0.010

0.001

0.143

− 3.218

0.001

1.653

Stübinger et al. 2008 [56]

0.019

0.001

0.244

− 2.753

0.006

1.642

Kim et al. 2012 [57]

0.028

0.015

0.052

− 11.010

0.000

6.342

Blus et al. 2008 [58]

0.038

0.009

0.139

− 4.493

0.000

3.924

Scarano et al. 2015 [43]

0.038

0.002

0.403

− 2.232

0.026

1.616

Penarrocha-Diago et al. 2012 [22]

0.040

0.006

0.235

− 3.114

0.002

2.656

Delibasi et al. 2013 [67]

0.043

0.006

0.252

− 3.023

0.003

2.649

Moon et al. 1 (Moon et al. 2015) [74]

0.045

0.003

0.448

− 2.103

0.035

1.607

Moon et al. 2 (Moon et al. 2015) [70]

0.045

0.003

0.448

− 2.103

0.035

1.607

Vercellotti et al. 2001 [8]

0.048

0.007

0.271

− 2.924

0.003

2.642

Cortes et al. 2012 [59]

0.050

0.013

0.179

− 4.059

0.000

3.900

Stacchi et al. 2013 [60]

0.056

0.021

0.139

− 5.507

0.000

5.118

Stübinger et al. 2009 [61]

0.063

0.009

0.335

− 2.622

0.009

2.615

Gemiani et al. 2015 [76]

0.093

0.047

0.175

− 6.134

0.000

6.030

Felice et al. 2013 [71]

0.100

0.025

0.324

− 2.948

0.003

3.799

Rickert et al. 2011 [73]

0.111

0.042

0.261

− 3.921

0.000

5.018

Rickert et al. 2013 [10]

0.111

0.042

0.261

− 3.921

0.000

5.018

Sánchez-Recio et al. 2010 [62]

0.154

0.059

0.345

− 3.136

0.002

4.936

Sohn et al. 2011 [72]

0.164

0.091

0.279

− 4.711

0.000

6.189

Barone et al. 2013 [63]

0.167

0.055

0.409

− 2.545

0.011

4.406

Cassetta et al. 2012 [75]

0.175

0.086

0.324

− 3.726

0.000

5.745

Weitz et al. 2014 [64]

0.175

0.086

0.324

− 3.726

0.000

5.745

Barone et al. 2008 [31]

0.308

0.120

0.591

− 1.349

0.177

4.590

Corinaldesi et al. 2013 [65]

0.333

0.131

0.624

− 1.132

0.258

4.522

Random

0.080

0.055

0.115

− 11.815

0.000