About: http://webisa.webdatacommons.org/38033499

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Thus, PA level is a confounder when categorizing by sports participation; sports participation is a confounder when grouping by PA level.
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com