Bad chart. Those aren’t yes or no questions.
For example blood clots. The odds are 4 in a million on both Pfizer and Moderna and 15 in a million on Jansen.
Both should be technically be yes. The risk is small with all of them, but it has happened with all.
(Referring to severe initial blood clots as opposed to the Canadian doctor’s speculation of micro clots)
Before anyone starts getting in a kerfluffle over the "no" answers on the chart regarding certain adverse reactions, please note the author did say this (emphasis mine):
"I’ve also included the major warnings listed on the factsheets or prescribing information for each vaccine. A “No” in this section doesn’t necessarily mean that the complication cannot happen, since all authorized vaccines include the warning of other risks that are not listed."