Table 2 Characteristics of 162,466 index admissions
From: Comparison of predictive modeling approaches for 30-day all-cause non-elective readmission risk
Overall index admissions n = 162,466 | Index admissions by the value of 30-day all-cause non-elective readmission | |||||
|---|---|---|---|---|---|---|
The total degrees of freedom = 24 | No (88.5 %) n = 143,759 | Yes (11.5 %) n = 18,707 | ||||
No. or Mean | % or Std. | No. or Mean | % or Std. | No. or Mean | % or Std. | |
Variables in LACE model | ||||||
1. Length of Stay (L) | 4.8 | 4.5 | 4.6 | 4.4 | 5.8 | 5.3 |
2. Acuity (A) | 123,426 | 76.0 | 107,288 | 74.6 | 16,138 | 86.3 |
3. Charlson Comorbidity Index (C) | 2.0 | 2.4 | 1.9 | 2.4 | 2.8 | 2.8 |
4. ER encounters in Last Six Months (E) | 33,166 | 20.4 | 27,368 | 19.0 | 5798 | 31.0 |
Additional variables from EMR | ||||||
5. Number of ER encounters in Last Year | 0.6 | 2.0 | 0.5 | 1.5 | 1.1 | 4.1 |
Index admissions with this value > 0 | 45,037 | 27.2 | 37,532 | 26.1 | 7505 | 40.1 |
6. Number of Inpatient encounters in Last Year | 1.0 | 1.8 | 0.8 | 1.6 | 2.1 | 2.9 |
Index admissions with this value > 0 | 64,742 | 39.9 | 52,998 | 36.9 | 11,744 | 62.8 |
7. Braden Score | 18.6 | 3.3 | 18.7 | 3.2 | 17.9 | 3.4 |
8. Polypharmacy | 6.1 | 5.8 | 5.9 | 5.6 | 7.2 | 6.5 |
9. Inpatient encounters in Last 6 Months | 51,797 | 31.9 | 41,540 | 28.9 | 10,257 | 54.8 |
10. Employment Status | ||||||
Employed | 22,007 | 13.6 | 20,398 | 14.2 | 1609 | 8.6 |
Not Employed | 83,231 | 51.2 | 71,607 | 49.8 | 11,624 | 62.1 |
Unknown | 57,228 | 35.2 | 51,754 | 36.0 | 5474 | 29.3 |
11. Discharge Disposition | ||||||
Home/Self care | 89,620 | 55.2 | 81,757 | 56.9 | 7863 | 42.3 |
Home Care | 26,913 | 16.6 | 22,669 | 15.8 | 4244 | 22.7 |
SNF | 29,598 | 18.2 | 24,714 | 17.2 | 4884 | 26.1 |
Rehab | 4155 | 2.6 | 3780 | 2.6 | 375 | 2.0 |
LTC, Federal Hospital | 9734 | 6.0 | 8823 | 6.1 | 911 | 4.9 |
12. Against Medical Advice (AMA) | 2163 | 1.3 | 1760 | 1.2 | 403 | 2.2 |
13. Albumin Level | ||||||
< 3.4 g/dL | 54,161 | 33.3 | 45,778 | 31.8 | 8383 | 44.8 |
> = 3.4 g/dL (normal range) | 34,077 | 21.0 | 30,744 | 21.4 | 3333 | 17.8 |
Unknown | 74,228 | 45.7 | 67,237 | 46.8 | 6991 | 37.4 |
14. Leukemia_LMM | 3576 | 2.2 | 2940 | 2.1 | 636 | 3.4 |
15. Malignancy | 17,384 | 10.7 | 14,471 | 10.1 | 2913 | 15.6 |
16. RF with Hemo | 42,844 | 26.4 | 35,458 | 24.7 | 7386 | 39.5 |
17. History of Alcohol Substance Abuse | 11,374 | 7.0 | 9686 | 6.7 | 1688 | 9.0 |
18. Dementia | 5362 | 3.3 | 4688 | 3.3 | 674 | 3.6 |
19. Trauma | 25,241 | 15.5 | 22,340 | 15.5 | 2901 | 15.5 |