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Table 1 Subject demographics

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

City Subject numbers Mean age at exam (SD) Gender % Mean IMD* (range)
    M F  
Newcastle 910 12.56 (0.48) 54 46 35.22 (2.77-78.85)
Manchester 873 12.32 (0.64) 57 43 37.04 (1.84-84.02)
Total 1783 12.44 (0.57) 56 44 36.11 (1.84-84.02)
  1. * IMD – Index of Multiple Deprivation. A compound measure of social deprivation reported by geographical area.