If the authors of the study can’t multiply percentages, I don’t see why I should believe the study at all. Taking their numbers at face value: .72% * 0.03% = 0.0072 * 0.0003 = ~0.000002 = 0.0002%. That’s 2 per million, not 2 per 10k. Nice try.

edit: somehow they did get the expected number in the US right, but they seem to have flubbed the comparison to other conditions.