Dear All,
The slides for the midterm exam with my little write-up on analysis of matching data have been posted online. Also attached is a paper by Mansournia, Hernan and Greenland 2013 which explains in more detail, and with the use of DAGs, why it is necessary to adjust for matching factors (when matching is not individual, see p. 864).
Please let us know if you have further questions about this topic.
Lydia