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Table 2 Multinomial logistic regression of the factors associated with early childhood caries (group with few lesions and high caries group) in a hierarchical model

From: Factors underlying the polarization of early childhood caries within a high-risk population

Groups/Variables Block 1   Block 4   Block 5   Block 6  
PR (95% CI) p PR (95% CI) p PR (95% CI) p PR (95% CI) p
Few caries group         
Age 1.06 (1.00-1.12) 0.054       
Child has visited the dentist         
  No    1      
  Yes    0.20 (0.05-0.89) 0.035     
Frequency of sucrose consumption between main meals         
  ≤3      1    
  >3      0.83 (0.28-2.42) 0.732   
Use of a night bottle         
  No      1    
  Yes      0.42 (0.16-1.08) 0.073   
Nighttime breastfeeding after 1 year         
  No      1    
  Yes      0.33 (0.11-1.01) 0.051   
Who does the teeth brushing         
  The child alone        1  
  The caregivers        0.27 (0.11-0.66) 0.004
High caries group         
Age 1.10 (1.01-1.20) 0.026       
Child has visited the dentist         
  No    1      
  Yes    1.05 (0.36-3.09) 0.932     
Frequency of sucrose consumption between main meals         
  ≤3      1    
  >3      4.65 (1.83-11.84) 0.001   
Use of a night bottle         
  No      1    
  Yes      0.57 (0.18-1.85) 0.353   
Nighttime breastfeeding after 1 year         
  No      1    
  Yes      1.38 (0.50-3.80) 0.532   
Who does the teeth brushing         
  The child alone        1  
  The caregivers        1.00 (0.25-4.02) 0.998
  1. PR prevalence ratio, CI confidence interval.
  2. Only variables whose p value were < 0.10 were shown in the table and others described below were omitted. Results for each variable were shown only for the block at which the variable was entered first. Blocks 2, 3, 7 and 8 were not presented because no significant variables were kept at these blocks.
  3. Block 1: adjusted for age.
  4. Block 2: adjusted for variable kept in block 1(age) plus variables from block 2.
  5. Block 3: adjusted for variable kept in block 1(age) plus variables from block 3.
  6. Block 4: adjusted for variable kept in block 1(age) plus variables from block 4.
  7. Block 5: adjusted for variable kept in block 1(age), variable selected from block 4 (child has visited the dentist) plus variables from block 5.
  8. Block 6: adjusted for variable kept in block 1(age), variable selected from block 4 (child has visited the dentist), variables selected from block 5 (frequency of sucrose consumption between main meals, nighttime breastfeeding after 1 year, and use of a night bottle) plus variables from block 6.
  9. Block 7: adjusted for variable kept in block 1(age), variable selected from block 4 (child has visited the dentist), variables selected from block 5 (frequency of sucrose consumption between main meals, nighttime breastfeeding after 1 year and use of a night bottle), variable selected from block 6 (who does the teeth brushing) plus variables from block 7.
  10. Block 8: adjusted for variable kept in block 1(age), variable selected from block 4 (child has visited the dentist), variables selected from block 5 (frequency of sucrose consumption between main meals, nighttime breastfeeding after 1 year and use of a night bottle), variable selected from block 6 (who does the teeth brushing) plus variables from block 8.