Table 2 Unadjusted regression analysis. Association between socio-demographic, clinical variables and TRMCI and association between socio-demographic, clinical variables and OHRQOL

District of residence

Monduli

Longido

14.6 (70)

23.0 (98)

0.001

21.9 (105)

8.9 (38)

< 0.001

Sex

Female

Male

19.3 (98)

17.6 (70)

0.513

14.2 (72)

17.8 (71)

0.133

Age

12–14 years

15–17 years

17.6 (137)

23.0 (26)

0.167

15.2 (118)

22.1 (25)

0.061

Ethnicity

Maasai

Non-Maasai

23.2 (167)

0.5 (1)

< 0.001

14.6 (105)

20.5 (38)

0.047

Wealth index

Poorest

Least poor

19.9 (87)

17.4 (80)

0.349

11.9 (52)

19.4 (89)

0.002

Region of birth

Arusha

Others

19.4(167)

2.1 (1)

0.003

15.7 (135)

17.0 (8)

0.811

Mother’s education

Low (≤ primary school)

High (≥ secondary school)

19.4 (167)

2.2 (1)

0.004

15.4 (133)

22.2 (10)

0.224

Father’s education

Low (≤ primary school)

High (≥ secondary school)

19.8 (165)

4.2 (3)

0.001

15.2 (127)

22.2 (16)

0.118

Number of children

1–5 children

6–14 children

17.6 (78)

19.4 (90)

0.478

16.7 (130)

10.2 (13)

0.064

Gingival bleeding

No

Yes

16.6 (89)

21.3 (79)

0.076

14.8 (79)

17.3 (64)

0.313

DMFT

DMFT = 0

DMFT > 0

18.6 (154)

17.5 (14)

0.802

13.7 (113)

37.5 (30)

< 0.001

Dental fluorosis

TF score 0–4

TF score 5–9

19.5 (91)

17.5 (77)

0.432

11.4 (53)

20.5 (90)

< 0.001

Dental erosion

Grade 0

Grade > 0

20.6 (130)

13.9 (38)

0.017

16.8 (106)

13.5 (37)

0.215

Tooth wear

Grade 0

Grade > 0

16.8 (82)

20.6 (86)

0.137

14.9 (73)

16.8 (70)

0.445

TMD pain

2Q/TMD* = 0

2Q/TMD*> 0

17.9 (143)

23.4 (25)

0.172

12.3 (98)

42.1 (45)

< 0.001

TRMCI

TRMCI = 0

TRMCI > 0

14.9 (110)

19.6 (33)

0.128

OIDP

Impact

No impact

23.1 (33)

17.7 (135)

0.129