Table 6

SSP detection rate (%) at per patient, endoscopist and centre levels, with 95% CIs

VariableSSP detection rate
% (95% CI)n
Overall1.8 (1.7 to 1.9)1295/72 021
Patient characteristics
Sex
 Male2.0 (1.8 to 2.1)812/41 057
 Female1.6 (1.4 to 1.7)483/30 963
Age (years)
 50–541.6 (1.4 to 1.8)202/12 680
 55–591.6 (1.4 to 1.9)215/13 206
 60–641.9 (1.7 to 2.0)374/20 205
 65+1.9 (1.8 to 2.1)504/25 920
FIT round
 1st1.9 (1.8 to 2.0)795/41 960
 ≥2nd1.7 (1.5 to 1.8)499/29 558
Bowel cleansing
 Adequate1.8 (1.7 to 1.9)1217/66 996
 Inadequate1.6 (1.3 to 2.0)77/44 828
Caecal intubation
 Yes1.9 (1.8 to 2.0)1260/67 366
 No0.7 (0.5 to 1.0)33/4556
Endoscopist characteristics
Sex
 Male1.8 (1.7 to 1.9)891/49 492
 Female1.8 (1.6 to 2.1)280/15 194
Age (years)
 30–392.6 (2.3 to 2.9)277/10 602
 40–492.1 (1.8 to 2.3)332/16 169
 50–591.3 (1.1 to 1.4)348/27 775
 ≥600.9 (0.7 to 1.1)82/8902
Specialty
 Gastroenterology2.1 (2.0 to 2.2)1010/47 751
 Surgery1.0 (0.8 to 1.2)137/13 723
 Other0.8 (0.5 to 1.2)18/2337
Experience (years)
 ≤53.0 (2.5 to 3.5)134/4508
 6–91.1 (0.9 to 1.3)115/10 219
 ≥101.6 (1.5 to 1.7)709/45 333
Screening colonoscopies performed in 2010
 ≤1002.4 (2.2 to 2.6)416/17 479
 101–1801.9 (1.7 to 2.1)349/18 102
 >1801.4 (1.2 to 1.5)321/23 484
Overall colonoscopies performed in 2010
 ≤3001.6 (1.3 to 1.9)103/6545
 301–6002.2 (2.0 to 2.4)447/20 379
 >6001.4 (1.3 to 1.5)487/35 236
Adenoma detection rate (quartiles)
 First0.9 (0.7 to 1.0)95/11 375
 Second1.2 (1.0 to 1.3)257/21 792
 Third2.0 (1.8 to 2.2)421/20 864
 Fourth3.2 (2.9 to 3.5)411/12 915
Endoscopic centre characteristics
Screening-dedicated sessions
 Yes 1.9 (1.8 to 2.1)1127/58 189
 No 0.7 (0.5 to 0.9)44/6497
Colonoscopies with sedation/all colonoscopies
 <33%2.0 (1.6 to 2.5)92/4524
 33%–66%1.2 (0.9 to 1.5)68/5618
 >66%1.8 (1.7 to 1.9)1022/55 946
Screening colonoscopies performed in 2010
 ≤3001.3 (1.1 to 1.5)208/15 805
 301–6003.7 (3.4 to 4.0)636/17 310
 601–8001.0 (0.9 to 1.2)185/17 912
 >8001.0 (0.9 to 1.2)142/13 659
  • FIT, faecal immunochemical test; SSP, sessile serrated polyp.