Critical appraisal:Posther KE, Selim MA, Mosca PJ, Stanley WE, Johnson JL, Tyler DS, et al 2006 4

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Risk of bias assessment: cohort study

Subject selection
"New technology" group
Selected group
Comparison group
Selected group
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
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
High risk of bias Additional comments: Please replace this text and include any additional comments in regards to your risk of bias rating


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Article
Posther KE, Selim MA, Mosca PJ, Stanley WE, Johnson JL, Tyler DS, et al. Histopathologic characteristics, recurrence patterns, and survival of 129 patients with desmoplastic melanoma. Ann Surg Oncol 2006 May;13(5):728-39 Available from: http://www.ncbi.nlm.nih.gov/pubmed/16538415.
Assigned to
User:Meghna.kakani
Topic area
Guidelines:Melanoma
Clinical question
Form
Form:Quality appraisal cohort


Section below only relevant for Cancer Council Project Officer

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