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Table 3 Effect of repetition & reinforcement: Percent change in adjusted mean scores at different evaluations

From: The role of repetition and reinforcement in school-based oral health education-a cluster randomized controlled trial

  

Cumulative score

DLa

TLb

PLc

Statistical Significance

(n = 935)

(n = 303)

(n = 307)

(n = 325)

K-Dent (Score: 3)

I vs BL

11.66*

10.33*

5.00

19.66**

I > BL

I vs II

5.66

4.66

3.33

9.00*

I > II

III vs II

41.00**

46.66**

42.66**

34.00**

III > II

III vs IV

18.33**

29.00**

11.33*

15.00**

III > IV

K-Caries (Score: 4)

I vs BL

6.00

6.50

4.00

7.50*

I > BL

I vs II

1.75

2.75

1.25

1.50

NS

III vs II

19.75**

21.25**

17.50**

20.50**

III > II

III vs IV

6.25

7.25*

3.50

8.25*

III > IV

K-Gingivitis (Score: 2)

I vs BL

11.50*

13.50*

4.50

15.50**

I > BL

I vs II

5.00

6.00

2.00

6.00

NS

III vs II

30.00**

31.50**

28.50**

30.00**

III > II

III vs IV

8.00*

11.50*

8.00*

5.50

III > IV

K-Cancer (Score: 3)

I vs BL

11.66*

17.33**

5.33

12.33*

I > BL

I vs II

7.66*

12.66*

2.66

7.66*

I > II

III vs II

26.00**

31.33**

19.00**

28.33**

III > II

III vs IV

2.66

2.66

4.00

2.00

NS

OHK-Composite (Score: 12)

I vs BL

9.66*

11.42*

4.75

12.83*

I > BL

I vs II

4.66

6.25

2.25

5.66

I > II

III vs II

28.42**

31.50**

26.00**

27.75**

III > II

III vs V

8.42*

11.33*

5.75

8.08*

III > IV

OHB-Gingivitis (Score: 6)

I vs BL

10.17*

11.50*

6.50

12.50*

I > BL

I vs II

2.83

4.00

1.67

2.83

NS

III vs II

30.00**

29.17**

27.83**

33.00**

III > II

III vs IV

0.83

1.83

−0.33

1.33

NS

OHB-Cancer (Score: 6)

I vs BL

3.83

4.67

3.33

3.50

NS

I vs II

1.50

1.50

1.33

1.50

NS

III vs II

30.33**

30.83**

26.33**

34.00**

III > II

III vs IV

2.67

3.67

1.83

2.50

NS

OHB-Composite (Score: 12)

I vs BL

7.25*

8.17*

4.58

7.83*

I > BL

I vs II

2.17

2.75

1.50

2.17

NS

III vs II

30.25**

30.00**

27.08**

33.50**

III > II

III vs IV

1.83

2.83

0.58

1.67

NS

OHS-Composite (Score: 12)

I vs BL

4.33

5.08

3.08

3.33

NS

I vs II

4.08

4.17

2.92

4.17

NS

III vs II

15.08**

12.58**

14.92**

17.67**

III > II

IV vs III

3.42

5.00

2.50

2.67

NS

  1. aDL: Dentist-led; bTL: Teacher-led; cPL: Peer-led strategies of oral health education (OHE); Evaluation I: After single OHE session; Evaluation II: Six months after single OHE session; Evaluation III: Six months after RR-OHE; Evaluation IV: Twelve months after RR-OHE;*p < 0.05; **p < 0.001; >:Statistically better than; NS: Statistically insignificant difference; Cumulative scores adjusted for gender, type of school, clustering effect and OHE strategy using GEE; Scores of DL, TL, PL strategies adjusted for gender, type of school and clustering; DL group was used as positive control
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BMC Public Health

ISSN: 1471-2458

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