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Table 2 Descriptive statistics on recruitment

From: Is health research undertaken where the burden of disease is greatest? Observational study of geographical inequalities in recruitment to research in England 2013–2018

 Primary care and trust data, CCG levelPrimary care and trust data, LCRN levelPrimary care data, CCG level
Recruitment rate*
Mean (SD), interquartile range (IQR) [25% and 75% centiles]
across CCGs/LCRNs
 All conditions19.56, [5.74, 23.52]19.56, [16.25, 22.67]3.22, [1.19, 3.59]
 Mental health8.26, [0.44, 13.83]8.26, [6.31, 10.88]0.77, [0.06, 0.68]
 Diabetes14.61, [1.74, 15.12]14.61, [10.82, 21.95]2.65, [0.18, 3.21]
Recruitment redistribution index¥
% (Redistributed recruits/total recruits) × 100
 All conditions43.3% (1,416,436/3,272,538)12.0% (394,290/3,272,538)36.2% (194,389/539,046)
 Mental health53.3% (117,133/219,966)12.6% (27,856/219,966)58.9% (12,091/20,538)
 Diabetes52.6% (115,949/220,647)23.8% (52,473/220,647)57.1% (22,838/40,030)
  1. *Recruitment rate is calculated as the number of recruits divided by the number of people within each disease group
  2. ¥Redistribution index is the sum across areas of the absolute value of the difference between the actual and the equitable number of recruits, divided by two