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Table 3 Prevalence of caries, DMFT, DMFS, filling rate and pit and fissure sealant rate of first permanent molar in different groups

From: Prevalence of dental caries in the first permanent molar and associated risk factors among sixth-grade students in São Tomé Island

Variables

N (%)

Prevalence (%)

DMFT (mean ± SD)

DMFS (mean ± SD)

Filling (%)

PFS (%)

Sex

       

Male

949

51.13

69.65

1.805 ± 1.474

3.569 ± 3.869

8.76***

3.27**

Female

906

48.87

67.88

1.694 ± 1.552

3.518 ± 4.018

2.76

1.10

Age

       

≤ 10

27

1.46

77.78

1.750 ± 1.323

3.714 ± 3.568

0

0

11

497

26.79

67.61

1.511 ± 1.541

2.867 ± 3.564

5.13

2.87

12

723

38.96

72.27

1.628 ± 1.509

3.310 ± 3.908

5.74

1.91

13

355

19.14

73.09

1.827 ± 1.521

3.912 ± 4.271

4.82

2.55

14

168

9.06

68.24

1.594 ± 1.501

3.518 ± 3.941

7.06

1.18

≥ 15

85

4.58

65.12

1.581 ± 1.553

3.497 ± 4.573

6.98

2.33

Residency

       

Urban

744

40.13

73.11

1.624 ± 1.536

3.395 ± 4.091

6.59

1.61

Rural

528

28.48

68.94

1.633 ± 1.484

3.398 ± 3.869

4.73

2.08

Others

583

31.39

69.51

1.612 ± 1.536

3.216 ± 3.801

4.70

3.31

Single child

       

Yes

136

7.33

61.76

1.221 ± 1.381

2.471 ± 3.313

7.35

2.21

No

1719

92.67

69.34

1.659 ± 1.524

3.405 ± 3.978

5.37

2.22

  1. **P < 0.01, ***P < 0.001: Male compared with female