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Table 6 Proportion of individuals who were adequately screeneda, according to socioeconomic status quintileb and hub

From: Reducing the socioeconomic gradient in uptake of the NHS bowel cancer screening Programme using a simplified supplementary information leaflet: a cluster-randomised trial

  Midlands & North West* Southern* London* North East* Eastern*
  SI + Gist
N = 22,469
SI
N = 24,369
SI + Gist
N = 20,651
SI
N = 21,004
SI + Gist
N = 7416
SI
N = 6636
SI + Gist
N = 13,614
SI
N = 12,858
SI + Gist
N = 20,271
SI
N = 14,237
  % (n) % (n) % (n) % (n) % (n) % (n) % (n) % (n) % (n) % (n)
Adequately screened: 54.9 (12336) 54.6 (13297) 59.0 (12177) 61.9 (12991) 55.0 (4078) 55.2 (3665) 58.2 (7918) 57.4 (7382) 59.9 (12144) 55.9 (7955)
1st quintile (least deprived) 63.9 (2645) 65.9 (2852) 65.7 (4001) 67.1 (4884) 71.6 (752) 66.4 (558) 67.8 (1588) 67.7 (1422) 65.5 (3561) 61.4 (2462)
2nd quintile 61.4 (3037) 62.3 (3194) 60.5 (3170) 63.4 (3395) 62.0 (876) 60.5 (764) 65.1 (1831) 65.6 (1782) 63.2 (3391) 59.5 (2277)
3rd quintile 56.7 (2607) 57.6 (2693) 57.7 (2807) 60.2 (2760) 56.5 (907) 56.3 (783) 62.4 (1673) 62.2 (1533) 59.8 (2738) 54.4 (1566)
4th quintile 50.7 (1953) 50.5 (2136) 51.4 (1602) 53.5 (1433) 51.7 (983) 53.1 (950) 53.3 (1423) 53.2 (1353) 53.0 (1702) 50.0 (1115)
5th quintile (most deprived) 42.3 (2077) 40.3 (2403) 44.2 (569) 46.5 (495) 38.7 (555) 45.3 (610) 45.0 (1393) 42.5 (1283) 44.1 (728) 41.5 (525)
  1. a Returned a gFOBt kit within 18 weeks of the invitation that led to a ‘definitive’ test result of either ‘normal’ (i.e. no further investigation required) or ‘abnormal’ (i.e. requiring referral for further testing, usually colonoscopy) by the date of data extraction (18 weeks after the last day of the intervention).b 271 (138 SI + Gist and 133 SI) individuals missing socioeconomic status, 146 of these were adequately screened (84 SI + Gist and 62 SI)
  2. *Comparison between trials groups within each hub: Midlands & North West (OR = 1.01, 95% CI: 0.83–1.24, p = 0.89); Southern (OR = 0.89, 95% CI: 0.84–0.94, p < 0.01); London (OR = 0.99, 95% CI: 0.64–1.52, p = 0.96); North East (OR = 1.03, 95% CI: 0.89–1.19, p = 0.68); Eastern (OR = 1.18, 95% CI: 0.97–1.43, p = 0.09)
  3. *Comparison between trials groups within each hub adjusting for age, gender and screening round: Midlands & North West (OR = 1.01, 95% CI: 0.93–1.09, p = 0.85); Southern (OR = 1.01, 95% CI: 0.95–1.07, p = 0.75); London (OR = 1.01, 95% CI: 0.88–1.16, p = 0.93); North East (OR = 1.08, 95% CI: 0.99–1.17, p = 0.09); Eastern (OR = 1.03, 95% CI: 0.96–1.10, p = 0.40)
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