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Table 3 Erosion and variables studied

From: Dental caries and erosion status of 12-year-old Hong Kong children

Variable (N)

BEWE (±SD)

p-value

Children examined (600)

1.7 ± 1.6

 

Gender (600)

  

   Girls (284)

1.8 ± 1.8

0.166

   Boys (316)

1.6 ± 1.4

 

Place of birth (577)

  

   Hong Kong (491)

1.7 ± 1.6

0.438

   Not in Hong Kong (86)

1.8 ± 1.7

 

Frequency of soft drinks (600)

  

   At least once every two days (120)

1.9 ± 2.1

0.110

   Less than once every two days (480)

1.6 ± 1.4

 

Frequency of citric tea / drinks containing lemon (600)

  

   At least once every two days (113)

1.8 ± 1.7

0.194

   Less than once every two days (487)

1.6 ± 1.5

 

Frequency of fruit juice (600)

  

   At least once every two days (115)

2.0 ± 1.7

0.015

   Less than once every two days (485)

1.6 ± 1.5

 

Frequency of chewing gum (600)

  

   At least once every two days (70)

2.0 ± 2.1

0.046

   Less than once every two days (530)

1.6 ± 1.5

 

Frequency of Vitamin C supplement drinks (600)

  

   At least once every two days (82)

2.0 ± 2.0

0.064

   Less than once every two days (518)

1.6 ± 1.4

 

Frequency of toothbrushing (600)

  

   At least once a day (144)

2.0 ± 1.9

0.017

   Twice or more (456)

1.6 ± 1.5

 

Care taker (598)

  

   Parents (501)

1.6 ± 1.6

0.233

   Others (97)

1.8 ± 1.6

 

Education of father (573)

  

   Primary or below (61)

1.9 ± 1.8

0.574

   Secondary (395)

1.6 ± 1.7

 

   Tertiary or above (117)

1.7 ± 1.2

 

Education of mother (585)

  

   Primary or below (64)

1.8 ± 1.7

0.614

   Secondary (434)

1.7 ± 1.6

 

   Tertiary or above (87)

1.2 ± 1.1

 

Parent’ dental knowledge (600)

  

   Low (53)

1.7 ± 1.5

0.665

   Middle (534)

1.7 ± 1.6

 

   High (13)

1.3 ± 2.0

 

Caries experience (600)

  

   No (476)

1.5 ± 1.4

0.004

   Yes (124)

2.1 ± 2.1