[monkeyshine]

I only read the lead-in. There is a potential bias in this study, since, people with those ailments are already largely taking aspirin daily as a blood thinner; and those ailments are themselves more likely to cause heart failure in and of themselves.

I’d have to read more to see how they controlled for this bias.

[dennisw]

I only read the lead-in. There is a potential bias in this study, since, people with those ailments are already largely taking aspirin daily as a blood thinner; and those ailments are themselves more likely to cause heart failure in and of themselves.

This is my thinking too. The first paragraph reads, "Aspirin is associated with heart failure" ---Correlation is not causation--- Who is most likely taking aspirin daily? People who have been told they have bad tickers.