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Table 4 Bivariate and Multivariate logistic regression model for independent variables' effect on caries increment at baseline and after five years

From: Assessment of dental caries predictors in 6-year-old school children - results from 5-year retrospective cohort study

Independent Variable   n(%) Caries free after 5 years n(%) Caries free p Value Crude Adjusted
OR 95% CI†† P OR 95% CI†† P
Gender     0.153    0.088    0.143
  Male 950 (51.1) 679 (71.4)   1.19 0.97-1.46   1.16* 0.95-1.41  
  Female 850 (48.1) 602 (68.4)   1    1   
Ethnicity     0.558    0.122    0.958
  Malay 808 (44.2) 561 (69.4)   1.04 0.82-1.32   0.99** 0.78-1.25  
  Chinese 570 (31.1) 395 (69.3)   1.22 0.94-1.58   1.12** 0.87-1.45  
  Indian 449 (24.5) 323 (71.9)   1    1   
Urban/Rural     <0.001    <0.001    <0.001
  Urban 1200 (65.6) 890 (74.2)   1.80 1.46-2.22   1.75*** 1.42-2.1  
  Rural 630 (34.4) 391 (62.1)   1    1   
  1. Odds ratio adjusted for ethnicity and urban/rural (*), gender and urban/rural (**), gender and ethnicity (***).
  2. Two tailed statistical significance set at 5% level.
  3. †† Confidence Interval.