Meta-Analysis of the Use of 8-OHdG in Saliva as a Marker of Periodontal Disease

Table 1

Quality of the studies according to the Newcastle-Ottawa quality assessment scale.

Study	Selection	Comparability	Exposure	Total stars
Takane et al. 2002 [12]				8
Sawamoto et al. 2005 [15]				8
Takane et al. 2005 [13]				8
Totan et al. 2006 [18]				8
Greabu et al. 2006 [9]				6
Badea et al. 2010 [19]				5
Sezer et al. 2012 [14]				9
Komatsu et al. 2013 [16]				7
Dede et al. 2013 [7]				8
Pendyala et al. 2013 [20]				8
Miricescu et al. 2014 [8]				8
Hernández-Monjaraz et al. 2014 [21]				5
Baňasová et al. 2014 [22]				8
Baltacioglu et al. 2014 [23]				8
Trivedi et al. 2014 [24]				8
Almerich-Silla et al. 2015 [6]				9
Zamora-Perez et al. 2015 [17]				9