PMC:7116472 / 13816-13968 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T90","span":{"begin":0,"end":62},"obj":"Sentence"},{"id":"T91","span":{"begin":63,"end":152},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"We performed sensitivity analyses by using complete case data. Model discrimination was also checked in ethnic groups and by sex using imputed datasets."}