Reviewer’s report
Title: 
Changes in physical activity across pregnancy among Chinese women: a
longitudinal cohort study
Version: 
1 
Date: 
20 Oct 2020
Reviewer: 
Joellen Wilbur
Reviewer's report:
Many concerns raised were addressed but some still remain. 
* Determinants are still not defined in the methods. For example, pregnancy plan
could mean type of delivery planned rather than a planned pregnancy. Also,
behaviors need clarification. Smoking could mean ever smoked or currently
smoke. 
* The consort sheet doesn't reflect the number of participants in the original
study separated out into who is eligible for this study and if not eligible why,
how many did come to the second assessment and why.
* Although the question of differences in the various regions of China and type
of health care universally are addressed in the response it was not brought into
the methods (setting).
* Based on the response it still isn't clear why a continuous variable is not used
for the IPAQ . Providing a continuous variable would likely be more informative
and other studies have reported it that way. 
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