PMC:7795804 / 20267-20613 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T118","span":{"begin":0,"end":171},"obj":"Sentence"},{"id":"T119","span":{"begin":172,"end":346},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Moreover, the outcome of interest and data related to predictive variables were collected through self-reporting rather than through a valid survey or clinical assessment. This was because, as we wanted to capture the changes that occurred during lockdown through a cross-sectional design, we chose specific questions to comply with this purpose."}