From: Matrix metalloproteinase-8 levels in oral samples as a biomarker for periodontitis in the Chinese population: an observational study
PD
BI
BOP
Group
Sites
Mean
95% CI
%
1
180
2.48
1.36, 3.60
1.41
−0.67, 3.49
42.5
2
178
5.42
2.05, 8.79
3.43
1.45, 5.41
95.1
Total
358
3.74
0.02, 7.46
2.28
−0.54, 5.10
73.9