Table 2: Logistic
model adjusted-odds
ratios: association between readmissions within 30 days, 90 days, and 180 days
of index admission for patients diagnosed with heart failure and patient
demographic, clinical, and administrative characteristics.
Variables |
Odds
Ratios for Readmissionc |
|||||
30 Days (n = 10,672) |
90 Days (n = 9,038) |
180 Days (n = 6,562) |
||||
OR |
CI |
OR |
CI |
OR |
CI |
|
Demographic Characteristics |
|
|
|
|||
Age
(Reference = Age 19-64) |
|
|
|
|
|
|
Age
65-85 |
1.217 |
1.00-1.49 |
1.166 |
0.92-1.49 |
1.106 |
0.81-1.51 |
Age
86-high |
1.313* |
1.04-1.65 |
1.062 |
0.80-1.41 |
1.014 |
0.71-1.46 |
Female
(Reference = Male) |
0.929 |
0.83-1.05 |
0.879 |
0.76-1.02 |
1.069 |
0.89-1.29 |
Urban
residents (Reference = rural residents) |
1.103 |
0.96-1.27 |
1.235* |
1.04-1.47 |
1.146 |
0.91-1.44 |
Median
household income (Reference = First quartile)a |
|
|
|
|
|
|
Second
Quartile |
1.236** |
1.07-1.43 |
1.078 |
0.90-1.29 |
0.906 |
0.72-1.13 |
Third
Quartile |
1.125 |
0.93-1.37 |
0.91 |
0.72-1.15 |
0.840 |
0.62-1.14 |
Fourth
Quartile |
1.144 |
0.89-1.48 |
0.867 |
0.63-1.19 |
0.960 |
0.64-1.43 |
Payer
(Reference = Other) |
|
|
|
|
|
|
Medicare |
1.135 |
0.92-1.40 |
1.120 |
0.87-1.45 |
1.341 |
0.95-1.89 |
Medicaid |
1.228 |
0.85-1.78 |
1.128 |
0.70-1.80 |
1.788* |
1.04-3.06 |
Clinical Characteristics |
|
|
|
|
|
|
Had
major operation procedure on index visit (Reference
= had no operational procedure on index visit) |
0.605*** |
0.51-0.72 |
0.948 |
0.77-1.16 |
0.721* |
0.54-0.96 |
Disposition/Transfer
(Reference = Discharge to home) |
|
|
|
|
|
|
Transferred
to another acute care setting |
6.507*** |
5.21-8.13 |
0.338*** |
0.19-0.60 |
0.283** |
0.13-0.61 |
Discharge
to post-acute care setting |
1.307*** |
1.13-1.51 |
0.882 |
0.74-1.05 |
0.759* |
0.60-0.96 |
Discharge
to home with home health/hospice |
1.364** |
1.13-1.64 |
1.149 |
0.92-1.43 |
1.102 |
0.83-1.46 |
Otherb |
3.457* |
1.23-9.68 |
0.784 |
0.10-6.09 |
N/A |
N/A |
Selected
Comorbidities (Reference
= Absence of specific comorbidity) |
|
|
|
|
|
|
Hypertension |
0.975 |
0.87-1.10 |
0.842* |
0.73-0.97 |
0.917 |
0.76-1.11 |
Chronic pulmonary disorders |
1.223 |
0.93-1.60 |
0.993 |
0.69-1.43 |
1.037 |
0.66-1.64 |
Diabetes |
1.024 |
0.89-1.18 |
1.029 |
0.87-1.22 |
1.197 |
0.97-1.47 |
Fluid and electrolyte disorders |
1.176* |
1.03-1.35 |
1.103 |
0.93-1.31 |
0.82 |
0.65-1.04 |
Renal failure |
1.398*** |
1.22-1.60 |
1.269** |
1.07-1.50 |
1.149 |
0.92-1.44 |
Blood disorders |
0.990 |
0.56-1.74 |
0.330 |
0.10-1.05 |
2.838** |
1.44-5.58 |
Hypothyroidism |
0.921 |
0.75-1.13 |
1.170 |
0.93-1.48 |
1.095 |
0.80-1.49 |
Obesity |
0.885 |
0.69-1.13 |
1.099 |
0.84-1.45 |
1.484* |
1.08-2.05 |
Other neurological disorders |
0.840 |
0.65-1.09 |
0.991 |
0.73-1.35 |
0.976 |
0.65-1.47 |
Valvular disease |
1.040 |
0.81-1.35 |
1.199 |
0.89-1.62 |
1.039 |
0.70-1.55 |
Peripheral vascular disorders |
1.080 |
0.84-1.39 |
0.947 |
0.69-1.30 |
1.017 |
0.69-1.51 |
Depression |
1.222 |
0.92-1.63 |
0.981 |
0.68-1.42 |
0.629 |
0.36-1.09 |
First
or second diagnosis of HF on index visit (Reference
= First or second diagnosis not related to HF) |
1.345*** |
1.20-1.51 |
1.220 |
1.06-1.41 |
1.103 |
0.91-1.33 |
Administration
Characteristics |
|
|
|
|
|
|
Total
Charges of index hospitalization (Reference
= $776 to $10,000) |
|
|
|
|
|
|
$10,001
to $20,000 |
0.859 |
0.72-1.02 |
1.079 |
0.88-1.32 |
0.922 |
0.71-1.19 |
$20,001
to $40,000 |
1.119 |
0.94-1.34 |
0.964 |
0.77-1.20 |
0.861 |
0.65-1.14 |
$40,001
to $769,063 |
1.329** |
1.10-1.61 |
0.774* |
0.60-0.99 |
0.772 |
0.56-1.06 |
aMedian
income of households in patient’s zip code (National Quartile, Reference=Lowest
Income, first quartile).
bOther
discharges included the patients discharged with the status of against medical
advice or to court/law enforcement or psychiatric facilities.
cModel fit indices: R2 = 0.0644; Hosmer-Lemeshow Test (p = 0.0197); C-statistics = 0.6483
(95% CI 0.6325-0.6641).
*p
< 0.05. **p < 0.01. ***p < 0.001.