Table 1.
Characteristics of the Cohort (n=982)
| Variable | Category | Overall | No Readmission or ED |
Readmission or ED |
Probability chi-square |
|---|---|---|---|---|---|
| Age | Less than 70 | 707 (72%) |
498 (71%) |
209 (75%) |
0.243 |
| Greater than or equal to 70 | 275 (28%) |
204 (29%) |
71 (25%) |
||
| Sex | Female | 488 (50%) |
345 (71%) |
143 (29%) |
0.586 |
| Male | 494 (50%) |
357 (72%) |
137 (28%) |
||
| Race | White |
827 (87%) |
602 ( 89%) |
225 ( 83%) |
0.0165* |
| Non-white |
125 (13%) |
78 (11%) |
47 ( 17%) |
||
| BMI | Less than 35 | 847 (86%) |
609 (87%) |
238 (85%) |
0.472 |
| Greater than or equal to 35 | 135 (14%) |
93 (13%) |
42 (15%) |
||
| Dependent Status | Not dependent | 854 (88%) |
603 (86%) |
251 (90%) |
0.097 |
| Dependent | 122 (13%) |
95 (14%) |
27 (10%) |
||
| Urgent-Emergent Operation | Elective | 500 (51%) |
360 (51%) |
140 (50%) |
0.717 |
| Urgent-emergent | 482 (49%) |
342 (49%) |
140 (50%) |
||
| Complications | No complication | 562 (57%) |
439 (63%) |
123 (44%) |
<0.0001* |
| One or more complication | 420 (43%) |
263 (37%) |
157 (56%) |
||
| Length of Stay | Days [Median (IQR)] | 9 (5-15) |
9 (5-16) |
8 (5-14) |
0.714 |
| Minimally Invasive Surgery | MIS | 315 (32%) |
225 (32%) |
90 (32%) |
0.961 |
| Open | 665 (68%) |
476 (68%) |
189 (68%) |
||
| Diagnosis | Neoplasm | 315 (32%) |
226 (32%) |
89 (32%) |
0.902 |
| Diverticular Disease | 97 (10%) |
61 (9%) |
36 (13%) |
0.048* | |
| Inflammatory bowel disease | 231 (24%) |
154 (22%) |
77 (28%) |
0.064 | |
| Other | 339 (35%) |
261 (37%) |
78 (28%) |
0.006* | |
| Insurance | Commercial non-HMO | 278 (28%) |
203 (29%) |
75 (27%) |
0.503 |
| HMO | 155 (16%) |
106 (15%) |
49 (18%) |
0.352 | |
| Government Insurance | 408 (42%) |
298 (42%) |
110 (39%) |
0.364 | |
| Medicaid | 59 (6%) |
36 (5%) |
23 (8%) |
0.066 | |
| Uninsured | 21 (2%) |
14 (2%) |
7 (3%) |
0.621 | |
| Other | 43 (4%) |
31 (4%) |
12 (4%) |
0.928 | |
| Discharge Destination | Home |
225 (23%) |
155 (22%) |
70 (25%) |
<0.0001* |
| Home w/Home Healthcare |
447 (46%) |
297 (42%) |
150 (54%) |
||
| SNF |
130 (13%) |
84 (12%) |
46 (16%) |
||
| Other |
180 (18%) |
166 (24%) |
14 (5%) |
*
statistically-significant
ED=emergency department visit; BMI=body mass index; MIS=minimally-invasive surgery; HMO=health maintenance organization; SNF=skilled nursing facility