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PMC:7116472 / 836-1842 JSONTXT

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LitCovid-PubTator

Id Subject Object Predicate Lexical cue tao:has_database_id
20 15-23 Species denotes patients Tax:9606
23 154-162 Disease denotes covid-19 MESH:C000657245
25 247-256 Disease denotes mortality MESH:D003643
38 634-652 Gene denotes C reactive protein Gene:1401
39 274-282 Species denotes patients Tax:9606
40 972-980 Species denotes Patients Tax:9606
41 575-581 Chemical denotes oxygen MESH:D010100
42 618-622 Chemical denotes urea MESH:D014508
43 324-333 Disease denotes mortality MESH:D003643
44 384-393 Disease denotes mortality MESH:D003643
45 420-429 Disease denotes Mortality MESH:D003643
46 724-733 Disease denotes mortality MESH:D003643

LitCovid-sentences

Id Subject Object Predicate Lexical cue
T10 92-104 Sentence denotes Participants
T11 105-212 Sentence denotes Adults (age ≥18 years) admitted to hospital with covid-19 at least four weeks before final data extraction.
T12 214-234 Sentence denotes Main Outcome Measure
T13 235-257 Sentence denotes In-hospital mortality.
T14 259-266 Sentence denotes Results
T15 267-406 Sentence denotes 35 463 patients were included in the derivation dataset (mortality rate 32.2%) and 22 361 in the validation dataset (mortality rate 30.1%).
T16 407-679 Sentence denotes The final 4C Mortality Score included eight variables readily available at initial hospital assessment: age, sex, number of comorbidities, respiratory rate, peripheral oxygen saturation, level of consciousness, urea level, and C reactive protein (score range 0-21 points).
T17 680-871 Sentence denotes The 4C Score showed high discrimination for mortality (derivation cohort: area under the receiver operating characteristic curve 0.79, 95% confidence interval 0.78 to 0.79; validation cohort:
T18 872-971 Sentence denotes 0.77, 0.76 to 0.77) with excellent calibration (validation: calibration-in-the-large=0, slope=1.0).