from:Richard M. Rosenfeld, MD, MPH⁎ How to review journal manuscripts
Goals

Invitation to Review
Before deciding review, be sure:
- expertise in the content/methods/a valuable perspective
- time
- conflicts of interest
Confidential Comments to the Editor
- Confidential
- consistency between the comments to authors and the recommended disposition
- conflicts of interest
eg:
There are many problems with this manuscript that individually may be correctable, but in aggregate are worrisome. Unless the journal really needs a publication in this topic area I would pass and wait for better quality work

Comments to Authors
- an introductory paragraph
- general comments (major and minor)
- specific comments
- a concluding paragraph
General Comments to Authors

This is an important topic that is relevant to the journal and important to readership. Methodology is sound, the results are generalizable and add significantly to what is already known about this topic. There are no problems with ethics or conflict of interest.”
Relevance to Mission
Internal Validity
the design is appropriate, measurements are valid, and data are analyzed with appropriate statistical tests.

External Validity
whether they can be applied (generalized) to the universe outside the study.

Level of Evidence

Ethical Conduct

Specific Comments to Authors

Manuscript Disposition
- Accept
- Minor revision
- Major revision
- Reject