Pacala et al identified comorbid conditions that could predict the probability of repeated hospital admission in an elderly patient. This can help identify those patients who may require closer monitoring or more aggressive therapy. The authors are from the University of Minnesota.
Parameters:
(1) self-rated health
(2) coronary artery disease (including angina pectoris, myocardial infarction)
(3) diabetes mellitus in past year
(4) hospitalization in past year
(5) number of doctor visits in past year
(6) presence of an informal caregiver able to care for the patient for several days
(7) age
(8) gender
Parameter |
Finding |
Points |
---|---|---|
self rated health |
poor |
0.770 |
|
fair |
0.552 |
|
good |
0.340 |
|
very good |
0.327 |
coronary artery disease |
absent |
0 |
|
present |
0.390 |
diabetes mellitus in past year |
absent |
0 |
|
present |
0.319 |
hospitalized within past year |
no |
0 |
|
yes |
0.545 |
number of doctor visits in past year |
<= 6 visits |
0 |
|
> 6 visits |
0.318 |
informal caregiver available (friend, relative, neighbor) |
none |
-0.738 |
|
present |
0 |
age in years |
< 75 years |
0 |
|
75 – 79 years |
0.255 |
|
80 – 84 years |
0.327 |
|
>= 85 years |
0.559 |
gender |
male |
0.257 |
|
female |
0 |
where:
• The points assigned are the regression coefficients for each parameter from Appendix B.
• I am confused by the point assignment for informal caregiver. I would think the presence of a friend, relative or neighbor able to care for the patient would reduce the hospital admissions. However, as the table in Appendix B is written, an informal caregiver increases the risk of admission. Perhaps a person without a caregiver dies without being admitted.
X =
= SUM(points for all 8 parameters) – 1.802
probability of being repeatedly admitted to the hospital within the next 4 years =
= EXP(X) / (1 + EXP(X))
Purpose: To identify an elderly patient at risk for 2 or more hospital admissions during the next 4 years using the logistic regression equation of Pacala et al.
Objective: risk factors, other testing
ICD-10: R69,