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Table 7 Proportion of subjects “caries free” in each quintile of deprivation for each detection method and threshold

From: The association between social deprivation and the prevalence and severity of dental caries and fluorosis in populations with and without water fluoridation

   Proportion “Caries free” for each quintile of deprivation
   1 2 3 4 5
White spot lesion Clinical Newcastle 39% 32% 22% 13% 16%
  Manchester 31% 19% 12% 7% 9%
  Chi Square test p > 0.05 p <0.01 p < 0.05 p = 0.05 p > 0.05
Caries in dentine Clinical Newcastle 78% 75% 68% 58% 56%
  Manchester 72% 59% 57% 46% 39%
  Chi Square test p > 0.05 p < 0.01 p < 0.05 p < 0.05 p < 0.01
White spot lesion Photo Newcastle 52% 40% 31% 17% 19%
  Manchester 37% 24% 20% 12% 10%
  Chi Square test p < 0.05 p < 0.01 p < 0.05 p > 0.05 p < 0.05
Caries in dentine Photo Newcastle 77% 78% 69% 61% 57%
  Manchester 75% 59% 51% 48% 40%
  Chi Square test p > 0.05 p <0.01 p < 0.05 p < 0.05 p < 0.01