Table 5.

Tukey’s honestly significant difference multiple comparisons test

Comparisons	Mean difference in VSC level (ppb)	P Value	Conclusion
Moderate–mild periodontitis	31.67	0.001*	Moderate has significantly higher VSC level than mild
Severe–mild periodontitis	68.97	0.001*	Severe has significantly higher VSC level than mild
Severe–moderate periodontitis	37.33	0.001*	Severe has significantly higher VSC level than moderate
Mild–no clinical attachment loss	46.95	0.001*	Mild has significantly higher VSC level than no clinical attachment loss
Moderate–no clinical attachment loss	78.6	0.001*	Moderate has significantly higher VSC level than no clinical attachment loss
Severe–no clinical attachment loss	115.92	0.001*	Severe has significantly higher VSC level than no clinical attachment loss

VSC = volatile sulfur compound

* as highly significant (p< 0.05)