Jun 2008.

Methods	Two experienced endoscopists scored Baron Scale and Jeroen Classification independently. The correlation and difference between the two indices were assessed using Kendall's coefficient of concordance and Spearman correlations.
Data	Patient characteristics: 80 UC patients Mean age: 41.14 years
Comparisons	6 endoscopic scoring indices were compared
Outcomes	Construct validity (see Table 5)
Notes	Endoscopic scoring indices evaluated: CGSUC, Truelove and Witts Sigmoidoscopic Score, Baron Score, Modified Baron Score, Jeroen Score, Azzolini Score Both patients with UC and CD were included in this study (80 UC patients, 31 CD patients)
Risk of bias
Item	Authors' judgement	Description
Blinding?	Yes	Two endoscopists were blinded to clinical and histologic findings
Independent Observation?	Yes	Two endoscopists evaluated endoscopic findings independently