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. 2012 Dec 28;12:1122. doi: 10.1186/1471-2458-12-1122

Table 1.

Subject demographics

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)

* IMD – Index of Multiple Deprivation. A compound measure of social deprivation reported by geographical area.