Table 2.
Logistic Regression for Major Post-discharge Outcomes by Clustera
| Outcome | Cluster 1 | Cluster 2 | Cluster 3 |
|---|---|---|---|
| n = | 1020 | 694 | 294 |
| 30-Day (n=)b | 936 | 634 | 259 |
| All Revisits | 1.15 (0.97 – 1.38) | 1.36 (1.11 – 1.66)** | 2.37 (1.77 – 3.17)*** |
| Inpatient | 1.10 (0.53 – 2.23) | 1.84 (0.87 – 3.78) | 1.26 (0.35 – 3.55) |
| Emergency Department | 0.97 (0.52 – 1.78) | 1.67 (0.89 – 3.09) | 0.36 (0.06 – 3.54) |
| Inpatient + ED | 1.10 (0.68 – 1.77) | 1.93 (1.19 – 3.12)** | 0.78 (0.29 – 1.74) |
| Complications (Any) | 1.00 (0.67 – 1.50) | 1.14 (0.72 – 1.79) | 0.68 (0.29 – 1.40) |
| Surgery-related Pain | 1.77 (1.02 – 3.10)* | 2.36 (1.31 – 4.27) ** | 5.49 (2.99 – 10.09)*** |
| Surgery-related Acute Pain | 2.86 (1.06 – 8.54)* | 2.60 (0.79 – 8.70) | 2.44 (0.51 – 10.41) |
| Surgery-related Chronic Pain | 2.13 (0.94 – 5.33) | 2.00 (0.78 – 5.23) | 5.82 (2.44– 15.60)*** |
| 60-Day (n=)b | 921 | 631 | 254 |
| All Revisits | 1.11 (0.92 – 1.35) | 1.10 (0.89 – 1.37) | 2.11 (1.50 – 3.01)*** |
| Inpatient | 0.91 (0.51 – 1.59) | 1.31 (0.71 – 2.34) | 1.08 (0.40 – 2.50) |
| Emergency Department | 0.95 (0.56 – 1.57) | 1.41 (0.81 – 2.39) | 0.39 (0.09 – 1.12) |
| Inpatient + ED | 0.95 (0.64 – 1.41) | 1.48 (0.97 – 2.22) | 0.76 (0.34 – 1.50) |
| Complications (Any) | 0.91 (0.65 – 1.25) | 1.14 (0.79 – 1.62) | 0.69 (0.36 – 1.21) |
| Surgery-related Pain | 1.21 (0.80 – 1.84) | 1.35 (0.84 – 2.14) | 3.41 (2.09 – 5.52)*** |
| Surgery-related Acute Pain | 1.96 (0.86 – 4.57) | 1.64 (0.58 – 4.36) | 1.95 (0.52 – 6.10) |
| Surgery-related Chronic Pain | 1.11 (0.59 – 2.07) | 0.90 (0.42 – 1.84) | 2.96 (1.47 – 5.90)** |
| 90-Day (n=)b | 907 | 621 | 246 |
| All Revisits | 1.08 (0.89 – 1.31) | 1.08 (0.87 – 1.34) | 1.97 (1.39 – 2.85)*** |
| Inpatient | 0.96 (0.59 – 1.54) | 1.01 (0.57 – 1.73) | 1.07 (0.45 – 2.24) |
| Emergency Department | 0.93 (0.57 – 1.50) | 1.28 (0.75 – 2.13) | 0.36 (0.09 – 1.01) |
| Inpatient + ED | 0.95 (0.66 – 1.36) | 1.25 (0.84 – 1.84) | 0.78 (0.38 – 1.45) |
| Complications (Any) | 0.92 (0.67 – 1.24) | 1.21 (0.86 – 1.68) | 0.74 (0.41 – 1.26) |
| Surgery-related Pain | 1.10 (0.76 – 1.59) | 1.25 (0.82 – 1.88) | 2.73 (1.71 – 4.27)*** |
| Surgery-related Acute Pain | 1.79 (0.83 – 3.92) | 1.58 (0.61 – 3.93) | 2.11 (0.64 – 5.99) |
| Surgery-related Chronic Pain | 0.82 (0.46 – 1.42) | 0.86 (0.46 – 1.57) | 2.03 (1.06 – 3.80)* |
a
Logistic regression was fitted for each outcome, adjusting for age at admission, gender, race-ethnicity, marital status, length of stay, postoperative morphine-equivalent-values per day, number of comorbidities, preoperative pain score. Odds ratios (ORs) and their corresponding 95% confidence intervals (CI) were reported in the table. Cluster 4 was the control group for all analysis (n=1407, 1392, 1373 at 30-, 60-, 90- Day).
b
Inpatient stays with patients who admission date fell out of the corresponding observation window were not included in the analysis, despite that they were included in the original cluster analysis.
*
p<0.05
**
p<0.01
***
p<0.001