[Table/Fig-2]:

Mean Periodontal Indices in individuals stratified according to their age

Age Group	N	Mean PD	Mean CAL	Mean OHI	Mean PI	Mean GI
30-39 Years	154	2.285±0.258	2.738±0.319	1.764±0.276	1.852±0.183	1.881±0.202
40-49 Years	273	2.604±0.285	3.106±0.320	1.856±0.329	1.972±0.262	2.089±0.366
50-59 Years	140	2.856±0.324	3.403±0.295	1.888±0.194	2.138±0.304	2.335±0.414
≥60 Years	133	3.141±0.306	3.833±0.544	2.083±0.238	2.341±0.349	2.505±0.436
Total	700	2.6864	3.222486	1.885057	2.049057	2.1718
p-value		<0.0001	<0.0001	<0.0001	<0.0001	<0.0001

One way ANOVA of variance, Statistical analysis showing highly significant (p<0.0001) variation of all the periodontal indices between groups stratified according to their age