NHIS Sources

Variable	Year	Supplement
P2DFWALK	2017	Family Disability Questions Test
P2DFWALK	2016	Family Disability Questions Test
P2DFWALK	2015	Family Disability Questions Test
P2DFWALK	2014	Family Disability Questions Test
P2DFWALK	2013	Family Disability Questions Test
P2DFWALK	2012	Family Disability Questions Test
P2DFWALK	2011	Family Disability Questions Test
P2DFWALK	2010	Disability
P2DFWALK	2009	Disability Test
P2DFWALK	2008	Disability Test