Fig. 1From: The relationship of nursing practice laws to suicide and homicide rates: a longitudinal analysis of US states from 2012 to 2016Nursing Practice Laws in US States, 2014. Footnote: Authors’ own work; analysis of data from the Cato Institute Freedom in the 50 States Project, 2012–2016. Exhibit 1a shows differences in nurse practitioner scope of practice laws across the US states in 2014, the median study year (range 1–3). Exhibit 1b shows differences Nurse Licensure Compact membership across the US states in 2014 (Member, Non-memberBack to article page