About: http://webisa.webdatacommons.org/127477324

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	Categorical variables were tested using the ??2 test, and other variables were tested using either the t test or the Wilcoxon rank sum test.
http://www.w3.org/ns/prov#wasQuotedFrom	jamanetwork.com