Table 1.
Demographic Comparison of Patients Diagnosed With COVID-19 Within 3 mo of TJA and Controls Not Diagnosed With COVID, Unmatched and Matched Data.
| Matched |
Unmatched |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| TJA, COVID+, n (%) | TJA, No COVID, n (%) | P-Value | TJA, COVID+, n (%) | TJA, No COVID, n (%) | P-Value | |||||
| Total | 239 | 713 | Reference | 312 | 5368 | Reference | ||||
| THA | 132 | 55.2% | 395 | 55.4% | 1.000 | 194 | 62.2% | 2209 | 41.2% | <.001a |
| Demographics | ||||||||||
| Age, mean, SD | 72.9 | 8.4 | 72.6 | 8.3% | 1.000 | 73.0 | 9.7% | 66.4 | 9.9% | <.001a |
| Gender | 1.000 | .711 | ||||||||
| Male | 88 | 36.8% | 261 | 36.6% | 125 | 40.1% | 2085 | 38.8% | ||
| Female | 151 | 63.2% | 452 | 63.4% | 187 | 59.9% | 3283 | 61.2% | ||
| Plan | .317 | .036a | ||||||||
| Commercial | 136 | 57.0% | 391 | 54.9% | 169 | 54.2% | 3361 | 62.6% | ||
| Medicaid | 15 | 6.2% | 32 | 4.5% | 18 | 5.8% | 259 | 4.8% | ||
| Medicare | 80 | 33.5% | 277 | 38.9% | 116 | 37.2% | 1636 | 30.5% | ||
| Comorbidities | ||||||||||
| Hypertension | 173 | 72.4% | 502 | 70.4% | .617 | 237 | 76.0% | 3558 | 66.3% | <.001a |
| COPD | 33 | 13.8% | 93 | 13.0% | .848 | 55 | 17.6% | 854 | 15.9% | .468 |
| CHF | 3 | 1.3% | 3 | 0.4% | .348 | 5 | 1.6% | 198 | 3.7% | .076 |
| Smoking | 5 | 2.1% | 11 | 1.5% | .779 | 7 | 2.2% | 300 | 5.6% | .016 |
| CKD | 43 | 18.0% | 130 | 18.2% | 1.000 | 79 | 25.3% | 639 | 11.9% | <.001a |
| Diabetes | 76 | 31.8% | 232 | 32.5% | .895 | 109 | 34.9% | 1731 | 32.2% | .355 |
| Obesity | 59 | 24.7% | 161 | 22.6% | .562 | 76 | 24.4% | 1259 | 23.5% | .766 |
| Depression | 54 | 22.6% | 123 | 17.3% | .082 | 76 | 24.4% | 804 | 15.0% | <.001a |
| Hypothyroidism | 38 | 15.9% | 107 | 15.0% | .819 | 50 | 16.0% | 817 | 15.2% | .761 |
| PVD | 29 | 12.1% | 109 | 15.3% | .275 | 57 | 18.3% | 639 | 11.9% | .001a |
| Coagulopathy | 11 | 4.6% | 39 | 5.5% | .724 | 21 | 6.7% | 229 | 4.3% | .055a |
| Cancer | 46 | 19.2% | 126 | 17.7% | .652 | 75 | 24.0% | 778 | 14.5% | <.001a |
| Iron deficiency anemia | 32 | 13.2% | 62 | 8.7% | .058 | 50 | 16.0% | 399 | 7.4% | <.001a |
| Liver disease | 12 | 5.0% | 36 | 5.0% | 1.000 | 19 | 6.1% | 267 | 5.0% | .457 |
| Alcohol use | 9 | 3.8% | 14 | 2.0% | .185 | 12 | 3.8% | 124 | 2.3% | .125 |
TJA, total joint arthroplasty; THA, total hip arthroplasty; SD, standard deviation; COPD, chronic obstructive pulmonary disease; CHF, congestive heart failure; CKD, chronic kidney disease; PVD, peripheral vascular disease.
a
Indicates statistical significance of P < .05.