Critical appraisal:Lim SG, Lee KJ, Suh KW, Oh SY, Kim SS, Yoo JH, et al 2013 1

Risk of bias assessment: cohort study

Subject selection

"New technology" group

Representative of eligible patients.

Comparison group

Representative of eligible patients

Comparability of groups on demographic characteristics and clinical features

Comparable

Measurement of outcomes

Outcome measures blind to technology used

No, but objective measures used

Same method of measurement used across comparison groups

Yes

Completeness of follow-up

Was follow-up complete and were all patients included in the analysis?

Yes (follow-up >95%) or survival analysis using all patients

Overall risk of bias

Low risk of bias

Additional comments: Please replace this text and include any additional comments in regards to your risk of bias rating

This appraisal has been completed.

Article

Lim SG, Lee KJ, Suh KW, Oh SY, Kim SS, Yoo JH, et al. Preoperative colonoscopy for detection of synchronous neoplasms after insertion of self-expandable metal stents in occlusive colorectal cancer: comparison of covered and uncovered stents. Gut Liver 2013 May;7(3):311-6 Available from: http://www.ncbi.nlm.nih.gov/pubmed/23710312.

Assigned to

User:Victoria.freeman

Topic area

Guidelines:Colorectal cancer/Colonoscopy surveillance

Clinical question

• What is the role of pre or peri-operative colonoscopy in CRC patients?

Form

Form:Quality appraisal cohort

Outcomes

uccessfully completed preoperative colonoscopy, Synchronous lesions during preoperative colonoscopy (adenomas, HGD, cancer)

Section below only relevant for Cancer Council Project Officer

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