Table 1:

Distribution of patients according to age

Age	Frequency	Percentage
A. OCT group
9	4	40%
10	1	10%
11	1	10%
12	1	10%
13	3	30%
Total	10	100%
B. CHX group
9	2	20%
10	2	20%
11	1	10%
12	5	50%
13	–	–
Total	10	100%