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Table 3 Oral hygiene and dietary habits among migrant children in 2011 and 2013 (n =1042)

From: Oral health knowledge, behaviors and parental practices among rural–urban migrant children in Guangzhou: a follow-up study

 

2011 \( \left(\overline{x}\pm \mathrm{s}\right) \)

2013 \( \left(\overline{x}\pm \mathrm{s}\right) \)

Change \( \left(\overline{x}\pm \mathrm{s}\right) \)

p-value a

Oral hygiene

Total score

13.98 ± 2.25

14.30 ± 2.19

0.32 ± 2.72

<0.001

Can each family member have their own toothbrush and cup?

3.37 ± 0.87

3.58 ± 0.71

0.21 ± 1.02

<0.001

 Yes

56.14%

67.37%

  

 Sharing cup

31.48%

26.30%

  

 Sharing toothbrush

5.66%

3.07%

  

 Sharing toothbrush and cup

6.72%

3.26%

  

Which manner are you using to brush your teeth every day?

3.09 ± 1.13

3.29 ± 1.09

0.20 ± 1.42

<0.001

 Casual brushing

13.82%

11.90%

  

 Vertical brushing

12.48%

8.64%

  

 Horizontal brushing

18.42%

13.34%

  

 Vertical brushing with horizontal vibration

55.28%

66.12%

  

How long each time do you brush your teeth?

2.57 ± 0.97

2.68 ± 0.92

0.11 ± 1.21

0.004

 Less than one minute

14.59%

9.88%

  

 1-2 minutes

34.64%

33.78%

  

 2-3 minutes

30.23%

35.12%

  

 More than three minutes

20.54%

21.22%

  

Do you rinse your mouth after a meal?

1.56 ± 0.50

1.59 ± 0.49

0.02 ± 0.62

0.213

 Yes

56.33%

58.73%

  

 No

43.67%

41.27%

  

How many times do you brush teeth each day?

3.38 ± 0.78

3.17 ± 0.76

−0.21 ± 1.01

<0.001

 None

1.63%

0.78%

  

 Once

13.44%

19.58%

  

 Twice

29.94%

41.94%

  

 Three times or more

54.99%

38.00%

  

Dietary habits

Total score

10.33 ± 2.33

10.61 ± 2.15

0.28 ± 2.62

0.001

How often do you eat chocolate pie or cream cake?

1.96 ± 0.74

2.08 ± 0.66

0.12 ± 0.91

<0.001

 Always eat

29.27%

18.33%

  

 Sometimes eat

45.59%

55.66%

  

 Rarely eat

25.14%

26.01%

  

How often do you eat carbonated beverage?

2.00 ± 0.73

2.10 ± 0.65

0.10 ± 0.84

<0.001

 Always eat

26.58%

16.31%

  

 Sometimes eat

47.22%

57.39%

  

 Rarely eat

26.20%

26.30%

  

How often do you eat cheese?

2.19 ± 0.73

2.25 ± 0.72

0.06 ± 0.92

0.026

 Always eat

19.19%

16.22%

  

 Sometimes eat

43.09%

42.71%

  

 Rarely eat

37.72%

41.07%

  

How often do you eat candy?

2.16 ± 0.71

2.20 ± 0.63

0.04 ± 0.84

0.113

 Always eat

18.81%

11.90%

  

 Sometimes eat

46.55%

56.24%

  

 Rarely eat

34.64%

31.86%

  

How often do you eat ice cream or butter?

2.03 ± 0.72

1.98 ± 0.68

−0.05 ± 0.90

0.106

 Always eat

24.57%

24.09%

  

 Sometimes eat

48.18%

53.65%

  

 Rarely eat

27.25%

22.26%

  
  1. aMarginal Homogeneity Test