Q: Can I use revised data when writing a paper based on the findings presented at a conference?

Yes, the journal paper can be based on the revised data, as long as the overall outcome doesn’t change. That doesn’t seem to be the case here. So, you should be fine to write the paper with the data revisions. It is the norm to present only broad findings at a conference, and then go back and write a complete paper with inputs and feedback received at the conference, along with making any revisions to data as needed.

As you are writing a paper based on your findings presented at a conference, you may also wish to keep the following points in mind:

• The journal article should have at least 30% new content from the conference abstract (or paper, if it was published as a part of the conference proceedings). This should be easy to do if you only provided an abstract.
• The title should be different. This is to avoid confusion when both are published online.
• You should cite the abstract in the journal article to avoid issues of self-plagiarism.
• You should inform the editor at the time of submission that this is based on the conference abstract.

For more information on developing journal articles based on conference presentations, you may refer to the following resources:

• What are the basic rules for submitting the same research to a conference and a journal?
• Can an article presented at a conference and one submitted to a journal have the same title?
• If my paper is published in a journal as part of conference proceedings, is it a journal paper?

All the best for writing the journal article!