Table 4.
Patient demographics and overall complications.
| Variable | All patients (n = 156,750) |
|---|---|
| Age range of patients (y) | 18-100 |
| Mean age ± SD (y) | 68.2 ± 9.2 |
| Median age (y) | 68 |
| Males | 60464 (38.6%) |
| Females | 96286 (61.4%) |
| Race | |
| Black | 8764 (5.6%) |
| Native American | 580 (0.4%) |
| Asian or Pacific Islander | 8832 (5.6%) |
| White | 116954 (74.6%) |
| Other | 18260 (11.6) |
| Unknown | 3360 (2.1%) |
| Ethnicity | |
| Hispanic | 29480 (18.8%) |
| Non-Hispanic | 125521 (80.1%) |
| Unknown | 1749 (1.1%) |
| Hospital volume rangea | 1-8149 |
| Mean hospital volume ± SDa | 1854.6 ± 1568 |
| Insurance | |
| Medicare | 93461 (59.6%) |
| Medical | 10264 (6.5%) |
| Workers compensation | 5398 (3.4%) |
| Other | 2016 (1.3%) |
| Private | 45771 (29.2%) |
| Comorbidities (CMS Clinical Conditions) | |
| Metastatic cancer | 164 (0.1%) |
| Other major cancer | 1920 (1.2%) |
| Neoplasms | 1250 (0.8%) |
| Diabetes mellitus | 32991 (21%) |
| Malnutrition | 672 (0.4%) |
| Morbid obesity | 16818 (10.7%) |
| Rheumatoid arthritis | 6713 (4.2%) |
| Osteoarthritis | 2626 (1.7%) |
| Osteoporosis | 14226 (9.1%) |
| Dementia | 1529 (1%) |
| Major psychiatric disorder | 7537 (4.8%) |
| Paralysis | 232 (0.1%) |
| Coronary artery disease or dangina | 13668 (8.7%) |
| COPD | 7890 (5%) |
| Renal failure | 12469 (7.9%) |
| Decubitus ulcer | 89 (5.7 × 10-2%) |
| Vertebral fracture | 36 (2.3 × 10-2%) |
| Skeletal deformities | 27 (1.7 × 10-2%) |
| Posttraumatic OA | 76 (4.8 × 10-2%) |
| Total complications | 1109 (0.7%) |
| # of Patients having at least 1 complication | 989 (0.6%) |
| AMI | 91 (5.8 × 10-2%) |
| Pneumonia | 474 (0.3%) |
| Sepsis | 201 (0.1%) |
| PE | 273 (0.2%) |
| Surgical site bleeding | 13 (6.3 × 10-4%) |
| Mechanical complications | 31 (2.0 × 10-2%) |
| Infection | 26 (1.7 × 10-2%) |
AMI, acute myocardial infarction; COPD, chronic obstructive pulmonary disease; PE, pulmonary embolism; SD, standard deviations.
a
Hospital volume is the total number of TJA cases performed between October 01, 2015, to December 13, 2017.