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. 2011 Nov 1;11:839. doi: 10.1186/1471-2458-11-839

Table 2.

Index of Multiple Deprivation rankings for research participants (using their postcodes)

IMD Ranks % of participants
≤1000 6.5
1001-5000 9.0
5001-10000 16.5
10001-15000 10.5
15001-20000 12.0
20001-25000 19.5
25001-30000 19.5
30001+ 6.5