Table 4.
Reasons for readmission by procedure type
| Normal Weight | Obese | ||||||
|---|---|---|---|---|---|---|---|
| BMI 20–30 | BMI ≥ 35 | ||||||
| N = 819 readmissions | N = 209 readmissions | ||||||
| COLECTOMY p = 0.67† | |||||||
| N = 322 | N = 49 | ||||||
| GI Complications (33%) | GI Complications (36%) | ||||||
| Infection (19%) | Infection (19%) | ||||||
| Cardiac (9%) | Electrolyte/renal abnormality (8%) | ||||||
| Pulmonary (7%) | Cardiac (6%) | ||||||
| Electrolye/renal abnormality (7%) | Pulmonary (3%) | ||||||
| Bleeding (4%) | Bleeding (3%) | ||||||
| Urinary (3%) | Neurologic (3%) | ||||||
| Vascular (3%) | Ortho (3%) | ||||||
| Neurologic (3%) | Pain (3%) | ||||||
| Pain (2%) | Urinary (0%) | ||||||
| Psychiatric (0%) | Vascular (0%) | ||||||
| Ortho (0%) | Psychiatric (0%) | ||||||
| Other (11%) | Other (17%) | ||||||
| THORACOTOMY p = 0.82† | |||||||
| N = 203 | N = 31 | ||||||
| Pulmonary (37%) | Pulmonary (44%) | ||||||
| Cardiac (13%) | Cardiac (22%) | ||||||
| GI complications (8%) | Infection (7%) | ||||||
| Infection (6%) | Neurologic (7%) | ||||||
| Bleeding (4%) | GI complications (4%) | ||||||
| Neurologic (3%) | Ortho (4%) | ||||||
| Electrolyte/renal abnormality (3%) | Bleeding (0%) | ||||||
| Pain (3%) | Electrolyte/renal abnormality (0%) | ||||||
| Psychiatric (2%) | Pain (0%) | ||||||
| Urinary (1%) | Psychiatric (0%) | ||||||
| Vascular (1%) | Urinary (0%) | ||||||
| Ortho (1%) | Vascular (0%) | ||||||
| Other (17%) | Other (11%) | ||||||
| ORTHOPEDIC PROCEDURE p = 0.91† | |||||||
| N = 294 | N=129 | ||||||
| Ortho (23%) | Ortho (27%) | ||||||
| Cardiac (16%) | Infection (16%) | ||||||
| Infection (14%) | Cardiac (12%) | ||||||
| Bleeding (9%) | GI complications (12%) | ||||||
| GI complications (7%) | Bleeding (10%) | ||||||
| Neurologic (5%) | Neurologic (4%) | ||||||
| Vascular (5%) | Pulmonary (4%) | ||||||
| Pulmonary (3%) | Vascular (3%) | ||||||
| Pain (3%) | Pain (3%) | ||||||
| Urinary (2%) | Electrolyte/renal abnormalities (2%) | ||||||
| Electrolyte/renal abnormalities (2%) | Urinary (1%) | ||||||
| Psychiatric (1%) | Psychiatric (0%) | ||||||
| Other (10%) | Other (9%) | ||||||
†
Fisher exact test to compare the distribution of reasons for readmission between the obese and normal weight patients. See online appendix for ICD-9 principal diagnosis codes associated with each reason for readmission.