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Table 3 Excluded studies

From: Influence of obesity on the outcome of non-surgical periodontal therapy - a systematic review

Excluded studies

Reason for exclusion

Europerio 4 2003 [37)

Not addressing research question

Abstracts for the Royal Australian and New Zealand College of Psychiatrists 2005 [38]

Not addressing research question

5th Joint Meeting of the European Tissue Repair Society and the Wound Healing Society 2009 [39]

Not addressing research question

Recently published abstracts [40]

Not addressing research question

DENTSPLY Posters 2012 [41]

Not addressing research question

HealthBeat 2007 [42]

Not addressing research question

Abstracts for Poster Presentations 2011 [43]

Not addressing research question

Abstracts for the International Symposium on Dental Hygiene 2013 [44]

Not addressing research question

Abou Sulaiman et al. 2010 [45]

Not addressing research question

Acharya et al. 2010 [46]

No PPD reduction data

Akpinar et al. 2013 [47]

Not addressing research question

Altay et al. 2013 [20]

No PPD reduction data

Armstrong et al. 2010 [48]

Not addressing research question

Arora et al. 2013 [49]

Not addressing research question

Basegmez et al. 2011 [50]

Not addressing research question

Bresolin et al. 2013 [51]

Not addressing research question

Bresolin et al. 2014 [52]

Not addressing research question

Caspersen et al. 2012 [53]

Not addressing research question

Caula et al. 2014 [54]

No comparison

Caula et al. 2014 [54]

Duplicate

Chapple et a. 2006 [55]

Not addressing research question

Chapple et al. 2007 [56]

Not addressing research question

Chandni et al. 2015 [57]

Not addressing research question

Chaston et al. 2014 [58]

Not addressing research question

Chee et al. 2008 [59]

Inclusion of diabetes

Chee et al. 2013 [60]

Missed intervention, inclusion of diabetes

Chen et al. 2012 [61]

Inclusion of diabetes

D’Aiuto et al. 2004 [62]

Not addressing research question

D’Aiuto et al. 2004 [63]

Not addressing research question

D’Aiuto et al. 2005 [23]

No comparison

D’Aiuto et al. 2006 [64]

Not addressing research question

Deppe et al. 2010 [65]

Not addressing research question

Dodington et al. 2015 [66]

No obesity data

Draper et al. 2010 [67]

Not addressing research question

Duan et al. 2009 [24]

Written in Chinese

Edwards et al. 2006 [68]

Not addressing research question

Efurd et al. 2012 [69]

Not addressing research question

Elliott-Smith et al. 2011 [70]

Not addressing research question

Engebretson et al. 2014 [71]

Not addressing research question

Fairfield et al. 2010 [72]

Not addressing research question

Fang et al. 2015 [73]

Inclusion of end-stage renal disease patients

Fentoglu et al. 2010 [74]

Statin intake

Fine et al. 2007 [75]

Not addressing research question

Fokkema et al. 2012 [76]

Not addressing research question

Fu et al. 2015 [77]

No comparison

Garcia et al. 2010 [78]

Not addressing research question

Giblin et al. 2014 [79]

Inclusion of prediabetes

Giblin et al. 2014 [79]

Duplicate

Gluch et al. 2007 [80]

Inclusion of diabetes

Goldie et al. 2002 [81]

Not addressing research question

Goldie et al. 2004 [82]

Not addressing research question

Goldie et al. 2005 [83)

Not addressing research question

Griffin et al. 2012 [84]

Not addressing research question

Gurenlian et al. 2006 [85]

Not addressing research question

Gurenlian et al. 2009 [86]

Not addressing research question

Hammaker et al. 2010 [87]

Not addressing research question

Horwitz et al. 2007 [88]

Not addressing research question

Hovliaras-Delozier et al. 2008 [89]

Not addressing research question

Ide et al. 2004 [90]

No obesity data

Ide et al. 2007 [91]

Not addressing research question

Iwamoto et al. 2003 [25]

Application of antibiotics

Jahn et al. 2004 [92]

Not addressing research question

Jahn et al. 2015 [93]

Not addressing research question

Jaiswal et al. 2015 [94]

No treatment (SRP)

Janket et al. 2014 [95]

Meta-analysis

Janket et al. 2014 [95]

Duplicate

Jared et al. 2008 [96]

Not addressing research question

Jared et al. 2008 [96]

Duplicate

Jiang et al. 2013 [97]

Not addressing research question

Kamil et al. 2011 [98]

No obesity data

Kamilov et al. 1998 [99]

Not addressing research question

Kapellas et al. 2013 [100]

No obesity data

Kardeşler et al. 2010 [26]

Inclusion of diabetes

Keller et al. 2015 [101]

Systematic review

Kiany et al. 2014 [102]

No obesity data

Kiany et al. 2015 [103]

Duplicate

Kipp et al. 2003 [104]

Not addressing research question

Kudva et al. 2010 [105]

Inclusion of diabetes

Kumar et al. 2015 [106]

Inclusion of diabetes

Kurti et al. 2007 [107]

Not addressing research question

Kurtis et al. 2007 [108]

Duplicate

Lee et al. 2014 [109]

Not addressing research question

Li et al. 2013 [110]

No obesity data

Ling et al. 2012 [111]

Inclusion of diabetes

Lo et al. 2011 [112]

Not addressing research question

Malhotra et al. 2012 [113]

No obesity data

Mancl et al. 2013 [114]

Not addressing research question

Martinez et al. 2014 [115]

Supplementation of ω-3 eicosapetaenoic acid

Martinez et al. 2014 [116]

One year of omega-3 supplementation

Matlock et al. 2012 [117]

No treatment (SRP)

McDaniel et al. 2013 [118]

Not addressing research question

Meharwade et al. 2014 [119]

Local drug delivery

Merchant et al. 2014 [120]

Inclusion of diabetes

Michalowicz et al. 2014 [121]

Inclusion of diabetes

Mizrak et al. 2006 [122]

Not addressing research question

Moeintaghavi et al. 2012 [123]

Inclusion of diabetes

Moravec et al. 2011 [124]

No treatment (SRP)

Muthu et al. 2015 [125]

No obesity data

Nassar et al. 2012 [126]

Inclusion of diabetes

Newton et al. 2011 [127]

Not addressing research question

Nichols et al. 2001 [128]

Not addressing research question

Nielsen et al. 2000 [129]

Not addressing research question

Novakovic et al. 2013 [130]

Not addressing research question

Novakovic et al. 2014 [131]

Not addressing research question

Oliveira et al. 2011 [132]

Not addressing research question

Olsen et al. 2006 [133]

Not addressing research question

Paquette et al. 2008 [134]

Not addressing research question

Perayil et al. 2014 [135]

No obesity data

Perayil et al. 2014 [136]

Duplicate

Phillips et al. 2013 [137]

Not addressing research question

Pradeep et al. 2007 [138]

Not addressing research question

Price et al. 2010 [139]

Not addressing research question

Qiqiang et al. 2012 [140]

No obesity data

Radafshar et al. 2012 [141]

Not addressing research question

Radnai et al. 2009 [142]

Not addressing research question

Raghavendra et al. 2012 [143]

Not addressing research question

Ramirez et al. 2011 [144]

No obesity data

Rasch et al. 1995 [145]

Not addressing research question

Sadatmansouri et al. 2006 [146]

Not addressing research question

Saffi et al. 2013 [147]

Inclusion of patients with coronary disease

Saffi et al. 2013 [147]

Duplicate

Saffi et al. 2014 [148]

Inclusion of patients with coronary artery disease

Shruti et al. 2010 [27]

No obesity data

Sembene et al. 2000 [149]

Not addressing research question

Sengupta et al. 1990 [150]

Not addressing research question

Sgolastra et al. 2013 [36]

Meta-Analysis

Shimada et al. 2010 [151]

No comparison

Shimoe et al. 2011 [152]

Case report

Singh et al. 2014 [153]

Not addressing research question

Siqueira et al. 2013 [154]

Not addressing research question

Stewart et al. 2001 [155]

Inclusion of diabetes

Talbert et al. 2006 [156]

Inclusion of diabetes

Tamaki et al. 2009 [157]

No obesity data

Tamaki et al. 2011 [158]

No obesity data

Tawfig et al. 2015 [159]

No comparison

Teles et al. 2012 [160]

No comparison

Toker et al. 2012 [161]

Not addressing research question

Tuter et al. 2007 [162]

Inclusion of patients with systemic disease

Vardar et al. 2003 [163]

Not addressing research question

Van Dyke et al. 2015 [164]

Not addressing research question

Vyas et al. 2000 [165]

Not addressing research question

Wahid et al. 2013 [166]

Not addressing research question

Wang et al. 2013 [167]

Inclusion of aggressive periodontitis

Wehmeyer et al. 2013 [168]

Not addressing research question

Wei et al. 2010 [169]

No obesity data

Williams et al. 2007 [148]

No obesity data

Williams et al. 2009 [170]

Not addressing research question

Williams et al. 2009 (171]

Not addressing research question

Wood et al. 2006 [172)

Not addressing research question

Wu et al. 2015 [173)

Not addressing research question

Zare et al. 2014 [174)

Not addressing research question

Zhou et al. 2013 [175]

Inclusion of patients with systemic disease

Zuza et al. 2011 [176)

No PPD reduction data