Review for 10.1186/s12876-020-01537-z (2020)

Reviewer’s report
Title: 
Gastrointestinal complications are associated with a poor outcome in non-
critically ill pneumonia patients
Version: 
0 
Date: 
06 Sep 2020
Reviewer's report:
This is an interesting and important study. The study was well designed and the
article was well-written. However, I have a question for this study. In this study,
GI complications were evaluated during "the first 3 days of hospitalization". It is
better to explain the reason for choosing " the first 3 days of hospitalization" in
evaluating the GI complications. Why don't you choose "the first 7 days (or other
number) of hospitalization" or "the whole course of hospitalization" for
evaluating the GI complications? 
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Is the study design appropriate to answer the research question (including the use
of appropriate controls), and are the conclusions supported by the evidence
presented?
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