Supplementary Table 2.

Intergroup and intragroup comparison of count, age, mean probing pocket depth, and mean clinical attachment level using analysis of variance with P value at a significance of 0.05

	Sum of squares	df	Mean square	F	Significant
Count
Between groups	12,380,164,074	2	6,190,082,037	2.357	0.104
Within groups	149,674,263,552	57	2,625,864,273
Total	162,054,427,626	59
Age
Between groups	2905	2	1453	25.566	0.0005
Within groups	3238.700	57	56.819
Total	6143.933	59
Mean PPD
Between groups	201.402	2	100.701	116.881	0.0005
Within groups	49.109	57	0.862
Total	250.511	59
Mean CAL
Between groups	618.525	2	309.263	251.918	0.0005
Within groups	69.975	57	1.228
Total	688.500	59
P	Highly significant at P≤0.01
P	Not significant at P>0.05

Intergroup comparison of the bacterial count shows that it is statistically not significant. A large F value indicates a varied proportion of mean squares among the three groups. ANOVA: Analysis of variance; PPD: Probing pocket depth; CAL: Clinical attachment level