Critical appraisal:Zeman M, Maciejewski A, Półtorak S, Kryj M 2013

From Cancer Guidelines Wiki

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
Not comparable and not adjusted for differences
Measurement of outcomes
Outcome measures blind to technology used
No, but objective measures used
Same method of measurement used across comparison groups
Completeness of follow-up
Was follow-up complete and were all patients included in the analysis?
No or not described
Overall risk of bias
High risk of bias Additional comments: Outcomes blinded - quite unbiased outcome measures

Completedness of follow up - Primary outcome 3- and 5- years, and both mean follow-ups are less. Don’t say why they were lost to FU.

Jutta's tick icon.png This appraisal has been completed.

Zeman M, Maciejewski A, Półtorak S, Kryj M. Evaluation of outcomes and treatment safety of patients with metastatic colorectal cancer to the liver with estimation of prognostic factors. Pol Przegl Chir 2013 Jun;85(6):333-9 Available from:
Assigned to
Topic area
Guidelines:Colorectal cancer
Clinical question
Form:Quality appraisal cohort

Section below only relevant for Cancer Council Project Officer

Edit appraisal assignment