Abstract:
OBJECTIVE:Identification of older patients at risk, among those accessing the emergency department (ED), may support clinical decision-making. To this purpose, we developed and validated the Dynamic Silver Code (DSC), a score based on real-time linkage of administrative data. DESIGN AND SETTING:The 'Silver Code National Project (SCNP)', a non-concurrent cohort study, was used for retrospective development and internal validation of the DSC. External validation was obtained in the 'Anziani in DEA (AIDEA)' concurrent cohort study, where the DSC was generated by the software routinely used in the ED. PARTICIPANTS:The SCNP contained 281 321 records of 180 079 residents aged 75+ years from Tuscany and Lazio, Italy, admitted via the ED to Internal Medicine or Geriatrics units. The AIDEA study enrolled 4425 subjects aged 75+ years (5217 records) accessing two EDs in the area of Florence, Italy. INTERVENTIONS:None. OUTCOME MEASURES:Primary outcome: 1-year mortality. SECONDARY OUTCOMES:7 and 30-day mortality and 1-year recurrent ED visits. RESULTS:Advancing age, male gender, previous hospital admission, discharge diagnosis, time from discharge and polypharmacy predicted 1-year mortality and contributed to the DSC in the development subsample of the SCNP cohort. Based on score quartiles, participants were classified into low, medium, high and very high-risk classes. In the SCNP validation sample, mortality increased progressively from 144 to 367 per 1000 person-years, across DSC classes, with HR (95% CI) of 1.92 (1.85 to 1.99), 2.71 (2.61 to 2.81) and 5.40 (5.21 to 5.59) in class II, III and IV, respectively versus class I (p<0.001). Findings were similar in AIDEA, where the DSC predicted also recurrent ED visits in 1 year. In both databases, the DSC predicted 7 and 30-day mortality. CONCLUSIONS:The DSC, based on administrative data available in real time, predicts prognosis of older patients and might improve their management in the ED.
journal_name
BMJ Openjournal_title
BMJ openauthors
Balzi D,Carreras G,Tonarelli F,Degli Esposti L,Michelozzi P,Ungar A,Gabbani L,Benvenuti E,Landini G,Bernabei R,Marchionni N,Di Bari Mdoi
10.1136/bmjopen-2019-033374subject
Has Abstractpub_date
2019-12-22 00:00:00pages
e033374issue
12issn
2044-6055pii
bmjopen-2019-033374journal_volume
9pub_type
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