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Table 1 Descriptive statistics of predictors (LACE), exposure time, and rehospitalisation outcomes in the training dataset

From: A hybrid machine learning framework to improve prediction of all-cause rehospitalization among elderly patients in Hong Kong

Variable

Mean (SD)

Min

First Quartile

Median

Third Quartile

Max

Exposure Time, d

448.7 (186.5)

0.3

340.4

340.4

601.4

728.2

Rehospitalisation, No.

1.6 (2.3)

0

0

1.0

2.0

41.0

Length of Stay, d

6.4 (7.4)

0.1

2.9

4.6

7.3

315.2

Charlson Comorbidity Index

1.0 (1.4)

0

0

0

1.0

13.0

Visits to Emergency Room during Previous 6 Months, No.

0.8 (1.2)

0

0

0

1.0

13.0

Prevalence of Acute Admission

87.7%