Fig. 5
From: Salivary leukocyte esterase activity by SillHa is a risk indicator of periodontal disease
Comparison of leukocyte esterase activity and BOP in the patients below (group 1) or above (group 2) median groups.
Comparison of leukocyte esterase activity (upper panel) or BOP (lower panel) in group 1 (purple circle) or group 2 (blue circle) at the baseline, re-examination, and final examination. *P < 0.05. ***P < 0.01. ****P < 0.0001. NS: Not significant.