Table 4 Performance of FICE and indigocarmine chromoendoscopy for differentiation of adenomas and hyperplastic polyps of every size and of <10 mm size
FICEIndigocarminep Value
Adenomas of every size
Adenoman = 236n = 271
Hyperplastic polypsn = 85n = 94
Sensitivity93.2% (220/236)90.4% (245/271)0.44
    95% CI86.6% to 97.1%84.4% to 94.6%
Specificity61.2% (52/85)60.0% (56/94)0.91
    CI 95%71.8% to 49.3%72.0% to 47.0%
Adenomas <10 mm
Adenoman = 141n = 201
Hyperplastic polypsn = 75n = 79
Sensitivity90.1% (127/141)87.6% (176/201)0.63
    95% CI79.6% to 95.5%79.5% to 92.7%
Specificity61.3% (46/75)62.0% (49/79)0.90
    95% CI48.9% to 72.5%47.6% to 74.6%

  • Proportions coincide with estimates from the GEE model29 applying the logistic function; confidence intervals were determined from standard error of the GEE model.

  • FICE, Fujinon intelligent colour enhancement.