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. 2022;15(Suppl 2):S212–S220. doi: 10.5005/jp-journals-10005-2162

Table 4.

Intragroup comparison of the number of Streptococcus mutans CFUs/ml at various time intervals

N Mean Standard deviation Minimum Maximum Median Chi-square value p value of Friedman Test
Group I (Xylitol) baseline
15 days
1st month
2nd month
3rd month
38
38
38
38
38
181,736.84
168,105.26
157,236.84
146,263.16
137,473.68
6154.252
5853.109
5257.860
4163.446
4150.785
171,000
160,000
150,000
140,000
130,000
198,000
180,000
166,000
154,000
146,000
181,000.00
170,000.00
158,000.00
147,000.00
138,000.00
152.000 0.000a
Group II (IgY + Xylitol) baseline
15 days
1st month
2nd month
3rd month
38
38
38
38
38
190,421.05
150,842.11
113,052.63
103,789.47
99,552.63
7027.481
7810.341
6084.750
3898.426
2668.104
175,000
133,000
104,000
97,000
94,000
205,000
169,000
127,000
112,000
105,000
189,500.00
152,000.00
112,500.00
104,000.00
100,000.00
152.000 0.000a
Group III (Control) baseline
15 days
1st month
2nd month
3rd month
38
38
38
38
38
189,263.16
187,078.95
186,710.53
185,710.53
185,500.00
6856.381
7034.208
7020.849
6476.185
5726.892
172,000
169,000
169,000
170,000
171,000
199,000
197,000
197,000
199,000
194,000
189,000.00
186,000.00
187,000.00
185,000.00
186,500.00
25.968 0.000a

a = highly significant difference (p < 0.01)