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Table 3 Socio-demographic characteristics and distribution of primary school children in Adama town, Ethiopia

From: Prevalence and genotypic frequency of color vision defects among primary schoolchildren in Adama Town, Eastern Ethiopia

Variables

Description

Condition of Color vision

Total n (%)

X2

df

p-value

Normal n (%)

Defected n (%)

Sex:

Male

640 (94.4)

38 (4.49)

678 (80.14)

3.14

1

P < 0.021

Female

165 (98.21)

3 (0.35)

168 (19.86)

Age:

9–12

M = 344 (94.25)

21 (5.75)

459 (54.26)

4.01

2

P < 0.051

F = 92 (97.87)

2 (2.13)

T = 436 (95.0)

23 (5.0)

13–16

M = 292 (95.11)

15 (4.89)

381 (45.03)

F = 73 (98.64)

1 (1.36)

T = 365 (95.80)

16 (4.20)

Above 16

M = 4 (66.67)

2 (33.33)

6 (0.71)

F = 0 (00.0)

0 (0)

T = 4 (66.67)

2 (33.33)

Grade level:

3–4

M265 (95.32)

13 (4.68)

321 (37.95)

3.41

1

P < 0.047

F = 43 (100.0)

0 (0.0)

T = 308 (95.95)

13 (4.05)

5–8

M = 375 (93.75)

25 (6.25)

525 (62.05)

F = 122 (97.60)

3 (2.40)

T = 497 (94.67)

28 (5.33)

School Name:

Burka Boku

M = 265 (94.0)

17 (6.0)

351 (41.50)

5.92

2

P < 0.043

F = 68 (98.55)

1 (1.45)

T = 333 (94.87)

18 (5.13)

Gada Robale

M = 239 (94.84)

13 (5.16)

315 (37.23)

F = 62 (98.41)

1 (1.59)

T = 301 (95.56)

14 (4.44)

Adama Bosat

M = 136 (94.44)

8 (5.56)

180 (21.27)

F = 35 (97.22)

1 (2.78)

T = 171 (95.0)

9 (5.0)

Ethnic Group:

Oromo

M = 214 (94.70)

12 (5.30)

282 (33.33)

3.32

2

P < 0.001

F = 54 (96.43)

2 (3.57)

T = 268 (95.0)

14 (5.0)

Amhara

M = 206 (91.15)

20 (8.85)

282 (33.33)

F = 55 (98.21)

1 (1.79)

T = 261 (92.55)

21 (7.45)

Gurage

M = 220 (97.35)

6 (2.65)

282 (33.33)

F = 56 (100)

0 (0)

T = 276 (97.87)

6 (2.13)

  1. M Male, n Frequency of the sample, F Female, T Total, X2 Chi-square, df Degree of freedom, M Male, F Female, T Total