PMC:7665480 / 5877-6077 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T51","span":{"begin":4,"end":139},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ses\nContinuous variables are expressed as median and interquartile range (IQR); categorical variables are presented as count and frequency. All statistical analyses were performed using SPSS software "}