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Table 4 Frequency distribution of dental erosion (grade 1–4), tooth wear (grade 1–4) and TMD by socio-demographic factors

From: Oral diseases and socio-demographic factors in adolescents living in Maasai population areas of Tanzania: a cross-sectional study

Variable

Dental erosion % (n)

Tooth wear % (n)

TMD > 0 % (n)

Prevalence (whole sample)

30.0 (372)

44.3 (401)

11.8 (107)

District

 Monduli

24.0 (115)

42.8 (205)

18.0 (86)

 Longido

36.8 (157)*

45.9 (196)

4.9 (21)*

Sex

 Male

28.1 (112)

46.0 (183)

12.3 (49)

 Female

31.5 (160)

42.9 (218)

11.4 (58)

Age group

 12–14

30.4 (236)

43.8 (340)

11.2 (87)

 15–17

28.3 (32)

48.7 (55)

17.7 (20)*

Region of Birth

 Arusha

29.2 (251)

44.7 (384)

11.9 (102)

 Others

47.7 (21)*

36.2 (17)

10.6 (5)

Ethnicity

 Maasai

26.8 (193)

44.9 (324)

11.2 (81)

 Non-maasai

43.8 (81)*

50.3 (92)

14.1 (26)

Wealth index

 1st quartile (poorest)

29.7 (66)

28.6 (113)

12.2 (27)

 2nd quartile (very poor)

25.5 (55)

23.0 (91)

8.8 (19)

 3rd quartile (less poor)

20.8 (47)

21.5 (85)

13.3 (30)

 4th quartile (least poor)

42.9 (100)*

26.8 (106)*

12.9 (30)

Mother’s education

 Low (≤ primary school)

28.8 (248)

44.5 (383)

10.8 (93)

 High (≥ secondary school)

53.3 (24)*

40.0 (18)

31.1 (14)*

Father’s education

 Low (≤ primary school)

29.4 (245)

44.2 (369)

11.6 (97)

 High (≥ secondary school)

37.5 (27)

44.4 (32)

13.9 (10)

  1. *Significant Pearson Chi-square test (p < 0.05)