Table 1.

Demographic characteristics of trial participants, by intervention arm

CharacteristicInterventionControl
n%n%
Total393100391100
Age, years
  50–5412732.313534.5
  55–5915539.413133.5
  60–6411128.212532.0
Ethnic background
  White22958.321855.8
  Black6917.66717.1
  Asian5614.26717.1
  Mixed/other/unknown399.93910.0
Time since their last screening test
  Late (6–<10 years)27269.226467.5
  Very late (10–15 years)12130.812732.5
GP practice
  1164.1153.8
  2153.8164.1
  35814.85413.8
  45012.74912.5
  55012.74712.0
  6369.23910.0
  782.0133.3
  85012.75113.0
  98722.18521.7
  10235.9225.6