IWP's State of the States reports:

WCRI released Interstate Variation and Trends in Workers’ Compensation Drug Payments, 6th Edition to examine how prescription drug payments vary across states and what is driving those trends. The study analyzed data from 31
states to identify changes in spending across drug categories and dispensing methods. It found significant variation in costs by state, driven by differences in drug mix, prescribing patterns, and the use of physician dispensing and mail-order pharmacies. The report also highlights shifting spending trends across key drug groups, including
opioids, dermatological drugs, and newer categories like migraine treatments.

Read the full State of the States report here.  They also include the advance announcement of WCRI's 2027 Issues & Research Conference, which will be held in Boston March 11–12, 2027.