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. 2009 Jul 28;3:154–160. doi: 10.2174/1874210600903010154

Table 2.

Linear Association Analysis Between Bleeding on Probing and respectively Gingeval Index, Probing Depth, Plaque Index, Endoscopic Biofilm Index, and Endoscopic Calculus Index

BOP-GI BOP-PI BOP-PD BOP- EBI BOP-ECI
P  χ2 P  χ2 P  χ2 P  χ2 P  χ2
Mesio-Vestibular 0.009 6.72 0.007 7.24 0.0001 27.3 0.0001 24.06 0.0001 21.3
Medio-Vestibular 0.009 6.80 0.026 4.96 0.0001 21.8 0.0004 12.50 0.0002 18.3
Disto-Vestibular 0.006 7.51 NS 0.001 10.1 0.0001 15.3 0.0002 18.2
Mesio-Lingual 0.025 5.04 NS 0.0001 20.2 0.002 9.2 0.0001 14.5
Medio-Lingual 0.005 7.87 NS 0.0001 16.4 0.0001 22.2 0.0037 8.4
Disto-Lingual NS NS 0.0004 12.5 0.0002 18.2 0.0006 11.8

BOP: bleeding on probing; GI: gingival index; PD: probing depth; PI: plaque index; EBI: endoscopic biofilm index; ECI: endoscopic calculus index; NS: statistically not significant.