From: Matrix metalloproteinase-8 levels in oral samples as a biomarker for periodontitis in the Chinese population: an observational study
Group
N
Mean
95% CI
Min
Max
Med
1
30
0.77
−0.07, 1.61
0.05
2.18
0.73
2
0.59
−0.15, 1.35
0.21
1.36
0.46
Total
60
0.68
−0.12, 1.48
0.64