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Table 2 Summary data for dietary interviews on sugar consumption and oral hygiene practises

From: The association between social deprivation and the prevalence and severity of dental caries and fluorosis in populations with and without water fluoridation

 

Manchester (N = 63)

Newcastle (N = 65)

Significance

Diet data - Mean

   

Mann Whitney U

NME+ Sugar between meals

1.95

1.86

U = 1989.5, z = −0.284, p = 0.776

NME Sugar last hour before bed

0.48

0.45

U = 2019, z = −0.159, p = 0.874

Brushing data- Percentiles

 

Manchester (N = 873)

Newcastle (N = 891*)

 

Toothpaste

small pea

10%

3%

U =369047, z = −1.954, p = 0.051

thin smear

34%

40%

 

large pea

28%

27%

 

full brush head

28%

30%

 

Rinse behaviour –

  

Chi square

No Rinsing

16%

9%

x(2) = 15.9, p = 0.0001**

Wet brush

12%

14%

p = 0.203

Head under tap

19%

18%

p = 0.839

Cupped hands

14%

17%

p = 0.039

Glass or beaker

41%

42%

p = 0.644

  1. *19 subjects had incomplete data and were excluded from examination.
  2. **Significant result.
  3. +NME – non-milk extrinsic sugar.