[tines]

How does this control for the "alert nurses" variable? In that case, patients would do better in the morning, regardless of the patient.

[d_tr]

Based on these graphs and the differences in outcomes they show, you are not talking about "alert vs less alert" nurses but about "nurses doing their job vs nurses basically slowly killing dozens of patients".

[anigbrowl]

Why would you assume nurses are scheduled on a 9-5 basis?

[simmerup]

Why do you think you're going to poke holes in a research article when you've clearly only just heard of the concept and havent even read the article

[tines]

If I thought I could poke holes in the research, I wouldn't be posting on HN. I'm asking questions to learn because obviously I don't understand :)