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Table 5 The relationship between adiposity status and the significant independent variables in Model 1

From: Caries-related risk factors of obesity among 18-year-old adolescents in Hong Kong: a cross-sectional study nested in a cohort study

Independent Variables

BMI

WHR

TRSKF

OR

95% CI

P

OR

95% CI

P

OR

95% CI

Gender

 Male

2.72

1.23, 6.05

0.014*

     

 Female

1.00

       

Full time employment for both parents

 Yes

4.03

1.58, 10.26

0.003**

   

1.78

1.06, 2.99

 No

1.00

     

1.00

 

Mouth rinse

 Less than once a day

2.31

1.08, 4.96

0.032*

     

 More than once a day

1.00

       

Frequency of meat intake

 Less than once a day

0.32

0.10, 0.99

0.048*

     

 More than once a day

1.00

       

Frequency of oil intake

 Less than once a day

0.37

0.16, 0.87

0.022*

     

 More than once a day

1.00

       

DMFT

1.18

1.02, 1.37

0.031*

1.11

1.00, 1.23

0.044*

  
  1. Abbreviation: DMFT decayed, missing, and filled permanent teeth, CI conference interval, BMI body mass index, WHR waist-hip ratio, TRSKF triceps skinfold thickness
  2. Dependent variable (categorical data): Adiposity indices; BMI was classified into underweight/normal weight group vs overweight/obese group (event group); WHR and TRSKF were classified by median values (higher 50% is event group)
  3. Independent variable: DMFT (continuous data), gender, full time employment of both parents, household monthly income, frequency of tooth brushing, use of fluoride toothpaste, frequency of mouth rinse, frequency of flossing, frequency of grains intake, frequency of vegetables intake, frequency of fruits intake, frequency of milk intake, frequency of meat intake, frequency of oil intake, and frequency of sweet intake (categorical data)
  4. In the final models of WC and WHtR, all independent variables were removed in the final model with α set at 0.05. The data of WC and WHtR were not presented here
  5. *P < 0.05, **P < 0.01. P values were calculated through binary logistic regression