Skip to main content

Table 3 Number (%) of schoolchildren who reported the state of teeth to be bad by socio-behavioural factors, non-clinical and clinical oral health indicators. Cross-tabulation analysis (chi-square) and multiple logistic regression with odds ratios (OR) and 95% confidence interval (CI).

From: Prevalence and correlates of self-reported state of teeth among schoolchildren in Kerala, India

  Unadjusted Adjusted   
Independent variables Bad state of teeth n (%) OR 95% CI R2
Step 1
Girls 73 (20) 1   
Boys 121 (25) 1.1 0.8–1.6  
Rural 131 (21)* 1   
Urban 63 (28) 1.3 0.9–2.0  
Socio-economic status – Poor 52 (25) 1   
Socio-economic status – Middle class 133 (23) 0.8 0.5–1.2  
Socio-economic status – High class 9 (22.5) 0.3 0.4–2.4  
School performance – Good 130 (19)* 1   
School performance – Poor 64 (41) 2.5 1.6–3.8 0.07
Step 2
Bleeding gums – No 135 (21)* 1   
Bleeding gums – Yes 59 (29) 1.1 0.7–1.7  
Bad breath – No 87 (16)* 1   
Bad breath – Yes 107 (37) 2.4 1.7–3.5  
Toothache – No 55 (21)    
Toothache – Yes 139 (24)    
Food impaction – No 34 (14)* 1   
Food impaction – Yes 160 (27) 1.7 1.1–2.7  
Dental visits – Never 97 (19)* 1   
Dental visits – Yes 97 (29) 1.6 1.1–2.3  
Oral health knowledge – Good 102 (21)    
Oral health knowledge – Poor 90 (26)    
Satisfied with appearance of teeth 68 (13)* 1   
Dissatisfied with appearance of teeth 126 (40) 4.2 2.9–6.0 0.26
Step 3
DMFT = 0 120 (20)* 1   
DMFT > 0 74 (32) 1.7 1.1–2.5  
Oral hygiene – Good 147 (22)* 1   
Oral hygiene – Fair 47 (30) 1.4 0.9–2.3  
Anterior trauma – no 182 (23)    
Anterior trauma – yes 12 (24)    0.27
  1. * p < 0.05
  2. All variables in Step 1 and other statistically significant bivariate variables were entered into the multiple logistic regression analysis