PMC:7417201 / 9082-9827 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T75","span":{"begin":128,"end":132},"obj":"http://purl.obolibrary.org/obo/UBERON_0000473"},{"id":"T76","span":{"begin":140,"end":144},"obj":"http://purl.obolibrary.org/obo/UBERON_0000473"},{"id":"T77","span":{"begin":300,"end":304},"obj":"http://purl.obolibrary.org/obo/UBERON_0000473"},{"id":"T78","span":{"begin":570,"end":576},"obj":"http://purl.obolibrary.org/obo/UBERON_0002415"}],"text":"Statistical analysis\nContinuous data are expressed as mean ± standard deviation and categorical data as percentage. Student’s t test and χ2 test were used to compare the differences in continuous and categorical variables, respectively. Poisson regression was used to compare the number of SPECT-MPI test performed during the lockdown and those during the corresponding time interval of the previous 3 years. Multivariable logistic regression analysis for predicting abnormal SPECT-MPI was performed for lockdown period and corresponding period of previous 3 years. Two-tailed P values \u003c 0.05 were considered significant. Statistical analysis was performed with R software version 3.6.3 (R Foundation for Statistical Computing, Vienna, Austria)."}

{"project":"LitCovid-sentences","denotations":[{"id":"T63","span":{"begin":0,"end":20},"obj":"Sentence"},{"id":"T64","span":{"begin":21,"end":115},"obj":"Sentence"},{"id":"T65","span":{"begin":116,"end":236},"obj":"Sentence"},{"id":"T66","span":{"begin":237,"end":408},"obj":"Sentence"},{"id":"T67","span":{"begin":409,"end":565},"obj":"Sentence"},{"id":"T68","span":{"begin":566,"end":621},"obj":"Sentence"},{"id":"T69","span":{"begin":622,"end":745},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Statistical analysis\nContinuous data are expressed as mean ± standard deviation and categorical data as percentage. Student’s t test and χ2 test were used to compare the differences in continuous and categorical variables, respectively. Poisson regression was used to compare the number of SPECT-MPI test performed during the lockdown and those during the corresponding time interval of the previous 3 years. Multivariable logistic regression analysis for predicting abnormal SPECT-MPI was performed for lockdown period and corresponding period of previous 3 years. Two-tailed P values \u003c 0.05 were considered significant. Statistical analysis was performed with R software version 3.6.3 (R Foundation for Statistical Computing, Vienna, Austria)."}