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. 2021 Dec 21;126(6):948–956. doi: 10.1038/s41416-021-01666-6

Table 1.

Characteristics of patients included in the analysis.

Patient characteristic Total population (n = 8,192,069)
Mean/N SD/%
Male 4,041,152 49.3%
Age (years) 38.1 23.6
Ethnic group
 White 5,367,003 65.5%
 Asian 603,615 7.4%
 Black 257,111 3.1%
 Mixed 145,815 1.8%
 Other 110,213 1.3%
 Unknown 1,708,312 20.9%
IMD Quintile
 1 (most deprived) 1,443,952 17.6%
 2 1,517,952 18.5%
 3 1,577,455 19.3%
 4 1,629,147 19.9%
 5 1,713,950 20.9%
 Unknown 309,613 3.8%
Urban/rural
 Urban 6,846,549 83.6%
 Rural 1,316,732 16.1%

IMD indices of multiple deprivation.