| 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). |
