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Table 1 Frequency distribution of independent and dependent variables and their categories in Kinondoni and Temeke districts

From: Malocclusion, psycho-social impacts and treatment need: A cross-sectional study of Tanzanian primary school-children

Variables

Categories (code)

Kinondoni % (n)

Temeke %(n)

p-value

Sex e

Male (1)

41.1 (412)

36.8 (220)

P = 0.050

 

Female (2)

58.9 (591)

63.2 (378)

 

Age

12 Yr (1)

26.1 (262)

23.9 (143)

P = 0.033

 

13 yr (2)

41.0 (420)

48.5 (290)

 
 

14 yr (3)

32.0 (321)

27.6 (165)

 

Parental education

Both low (1)

38.5 (210)

53.8 (149)

P = 0.000

 

One low/one high (2)

24.2 (132)

20.9 (58)

 
 

Both high (3)

37.2 (203)

25.3 (70)

 

Place of residence:

Urban (1)

63.5 (637)

82.3 (492)

P = 0.000

 

Rural (2)

36.5 (366)

17.7 (106)

 

State of health

Good (0)

93.2 (935)

96.5 (577)

P = 0.003

 

Bad (1)

6.8 (68)

3.5 (21)

 

Reported problems tooth position

Yes (1)

10.5 (105)

13.9 (83)

P = 0.025

 

No (2)

89.5 (898)

86.1 (515)

 

Reported problems tooth spaces

Yes (1)

7.8 (78)

7.5 (45)

P = 0.465

 

No (2)

92.2 (925)

92.5 (553)

 

Problem swallowing

No (0)

93.5 (938)

90.8 (543)

P = 0.030

 

Yes (1)

6.5 (65)

9.2 (55)

 

Problem pain

No (0)

81.3 (815)

75.9 (454)

P = 0.066

 

Yes (1)

18.7 (188)

24.1 (144)

 

OHIS debris score

Good = 0

68.0 (682)

61.9 (370)

P = 0.007

 

Fair/poor = 1

32.0 (321)

38.1 (228)

 

OIDP extent

None = 0

81.5 (817)

54.5 (326)

P = 0.001

 

> 1 = 1

18.5 (186)

45.5 (272)

 

Malocclusion index (SMO)

No (0)

37.4 (328)

34.0 (163)

P = 0.237

 

Yes (1)

62.6 (549)

66.0 (316)

 

Dissatisfied appearance/function

Yes (0)

25.6 (257)

19.4 (116)

P = 0.002

 

No (1)

74.4 (746)

80.6 (482)

 

Reported state of teeth

Good (1)

84.8 (851)

91.6 (548)

P = 0.001

 

Bad (2)

15.2 (152)

8.4 (50)

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