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Ion in England and ranges nationally from 2.9 (lowest deprivation) to 68.4 (highest deprivation). Lower Layer Super Output Area level deprivation data are applied proportionally to the Attribution Data Set practice populations.28 IQR, inter-quartile range.I think it's just hugely difficult... It's a complete nightmare... you sit there in practice and you think, `Well, how on earth can you decide w