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Table 4 Relationship between dental caries experience of the surveyed children and selected independent variables (final model of multi-factor ANOVA) (N = 700)

From: Oral health status and behaviours of preschool children in Hong Kong

Independent variable Group Beta SE (Beta) Significance Bonferroni Comparison
Snack frequency (times per day) ≥2 0.54 0.26 p = 0.04  
<2 #     
Visited a dentist Yes 1.47 0.35 p < 0.01  
No #     
Parental dental knowledge Score 0-7a 1.24 0.46 p < 0.01 c < b, a
Score 8-14b 1.02 0.28   
  Score 15-21c #     
Family income (HKD) ≤ 10000 a 1.54 0.33 p < 0.01 c < b, a
10000 – 20000 b 1.33 0.32   
  ≥ 20000 c #     
  1. F-value = 11.14; df = 6; p < 0.001; R2 = 0.088, # Reference category.