Table 1 Statistical definitions of the reach of the primary palliative care for emergency medicine (PRIM-ER) Study

Seriously ill (SI) patient

Meets the following criteria:

a. 66 years and older

b. Visited one of the 33 EDs at least once

c. Has a GAGNE > 6

Proportion of EM providers trained

\(\frac{Total\;Number\;of\;EM\;Providers\;that\;Completed\;EM\;Talk\;Training}{Total\;Number\;of\;EM\;Providers\;in\;Participating\;ED}\)

Yearly average of SI patient visits

\(\frac{Total\;Number\;of\;SI\;patients\;that\;had\;unique\;ED\;visits\;between\;2018\;and\;2020}{3\;(the\;number\;of\;years)}\)

Estimated number of SI patients reached

\(Yearly\;average\;of\;unique\;SI\;patients\;that\;visited\;the\;33\;EDs\ast Proportion\;of\;EM\;providers\;trained\)

SI patient: EM provider ratio

\(\frac{Estimated\;number\;of\;SI\;patients\;reached}{Proportion\;of\;EM\;providers\;trained}\)