The USCG does a lot of terrific work
(SAR and such).
Unfortunately, they truly suck at collecting data and suck even worse at collating and analyzing it.
If you look into the raw data collection behind these reports . . . they are a total mess. I have tried really hard to use it to make sense of PFD safety
outcomes. But both I and the CDC (who were commissioned to do it) both concluded it was not possible with the existing data, but would be very possible if the USCG simply followed the DOT & NHTSA protocols/standards/process for data collection.