. 2019 Sep 17;9:100478. doi: 10.1016/j.ssmph.2019.100478

Appendix A Table 1.

Definitions of region and metropolitan status.


Region	New England (CT, ME, MA, NH, RI, VT)
	Middle Atlantic (NJ, NY, PA)
	East North Central (IL, IN, MI, OH, WI)
	West North Central (IA, KS, MN, MO, NE, ND, SD)
	South Atlantic (DE, DC, FL, GA, MD, NC, SC, VA)
	East South Central (AL, KY, MS, TN)
	West South Central (AR, LA, OK, TX)
	Mountain (AZ, CO, ID, MT, NV, NM, UT, WY)
	Pacific (AK, CA, HW, OR, WA)
	Appalachia^a

Metro Status^b	Large central metro (counties of MSAs with a population of at least 1 million, including counties that contain all or a part of the area's inner cities)
	Large metro suburb (surrounding counties of large central metro)
	Medium & small metro (counties with MSAs of 50,000–999,999 population)
	Non-metropolitan areas

MSA: Metropolitan Statistical Area.

a. As defined by the Appalachian Regional Commission and used by Elo et al. (2019). Appalachia includes all of WV and certain counties in AL, GA, KY, MD, MS, NY, NC, OH, PA, SC, TN, and VA. These counties are excluded from their overlapping census divisions.

b. Based on the NCHS metropolitan classification scheme (Ingram & Franco, 2014).