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{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7796176","sourcedb":"PMC","sourceid":"7796176","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7796176","text":"We used multiple linear regressions with a residualized change score approach [13,14] to investigate the sociodemographic predictors (independent variables) of changes in physical activity, recreational screen time, sleep duration, and sleep quality (dependent variables) during the early stages of the pandemic in Chile.","tracks":[{"project":"LitCovid-sentences","denotations":[{"id":"T63","span":{"begin":0,"end":321},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"attributes":[{"subj":"T63","pred":"source","obj":"LitCovid-sentences"}]}],"config":{"attribute types":[{"pred":"source","value type":"selection","values":[{"id":"LitCovid-sentences","color":"#ecdc93","default":true}]}]}}