A)

GENDER

No. Screened

No. Referred ( %)

ABNORMAL b

N  %    95%CI

BOY'S

734

80 ( 10.9)

61

8.31

GIRL'S

802

129 (16.1 )

94

11.7

TOTAL

1536

209 (13.6)

151

9.8

B)

GENDER

No. screened

Referred ( %)

ABNORMAL

N  %    95%CI

Sex differences

BOY'S

577

36 ( 6.2)

24

4.2

3.1:5.3

 

 

 

 

 

 

 

X2  = 0.22

GIRL'S

742

56 (7.5 )

36

4.9

(3.7:5.1)

 

 

 

 

 

 

 

P =  0.64

TOTAL

1319

92 (7.0)

60

4.5

3.4:5.6

 

Chi - squared test (sex differences) x2 = 4.54 and P = 0.033 @ Yates corrected chi- squared test was applied. (b) abnormal denotes any child whose vision in one or both eyes is equal or less than 6/9( 20:28)
Table 1: Distribution of adolescent school children according to the over-all results of vision screening.