Table I.
Patient characteristics for patients who underwent TSA with normal preoperative leukocyte count, preoperative leukopenia, and preoperative leukocytosis.
| Characteristic | Normal |
Leukopenia |
Leukocytosis |
|||||
|---|---|---|---|---|---|---|---|---|
| Number | Percent | Number | Percent | P value | Number | Percent | P value | |
| Total | 20,791 | 100.0% | 1307 | 100.0% | 1243 | 100.0% | ||
| Age | .007 | .006 | ||||||
| 18-39 | 94 | 0.5% | 6 | 0.5% | 12 | 1.0% | ||
| 40-64 | 5487 | 26.4% | 405 | 31.0% | 360 | 29.0% | ||
| 65-74 | 8747 | 42.1% | 537 | 41.1% | 477 | 38.4% | ||
| ≥75 | 6463 | 31.1% | 359 | 27.5% | 394 | 31.7% | ||
| Body mass index (kg/m2) | <.001 | <.001 | ||||||
| <18.5 | 136 | 0.7% | 16 | 1.2% | 19 | 1.5% | ||
| 18.5-29.9 | 9879 | 47.5% | 774 | 59.2% | 518 | 41.7% | ||
| 30.0-34.9 | 5586 | 26.9% | 295 | 22.6% | 323 | 26.0% | ||
| 35.0-39.9 | 2969 | 14.3% | 131 | 10.0% | 204 | 16.4% | ||
| ≥40.0 | 2221 | 10.7% | 91 | 7.0% | 179 | 14.4% | ||
| Gender | .878 | <.001 | ||||||
| Female | 11,599 | 55.8% | 732 | 56.0% | 804 | 64.7% | ||
| Male | 9192 | 44.2% | 575 | 44.0% | 439 | 35.3% | ||
| Functional status | .930 | <.001 | ||||||
| Independent | 20,354 | 97.9% | 1280 | 97.9% | 1189 | 95.7% | ||
| Dependent | 437 | 2.1% | 27 | 2.1% | 54 | 4.3% | ||
| ASA classification | <.001 | <.001 | ||||||
| 1-2 | 8679 | 41.7% | 608 | 46.5% | 395 | 31.8% | ||
| ≥3 | 12,112 | 58.3% | 699 | 53.5% | 848 | 68.2% | ||
| Diabetes mellitus | .211 | <.001 | ||||||
| No | 16,981 | 81.7% | 1142 | 87.4% | 908 | 73.0% | ||
| Noninsulin | 2736 | 13.2% | 104 | 8.0% | 226 | 18.2% | ||
| Insulin | 1074 | 5.2% | 61 | 4.7% | 109 | 8.8% | ||
| Current smoker | <.001 | <.001 | ||||||
| No | 18,710 | 90.0% | 1233 | 94.3% | 997 | 80.2% | ||
| Yes | 2081 | 10.0% | 74 | 5.7% | 246 | 19.8% | ||
| COPD | <.001 | <.001 | ||||||
| No | 19,386 | 93.2% | 1250 | 95.6% | 1083 | 87.1% | ||
| Yes | 1405 | 6.8% | 57 | 4.4% | 160 | 12.9% | ||
| Congestive heart failure | .881 | .195 | ||||||
| No | 20,655 | 99.3% | 1298 | 99.3% | 1231 | 99.0% | ||
| Yes | 136 | 0.7% | 9 | 0.7% | 12 | 1.0% | ||
| Hypertension | <.001 | <.001 | ||||||
| No | 6799 | 32.7% | 540 | 41.3% | 321 | 25.8% | ||
| Yes | 13,992 | 67.3% | 767 | 58.7% | 922 | 74.2% | ||
| Disseminated cancer | .479 | <.001 | ||||||
| No | 20,747 | 99.8% | 1303 | 99.7% | 1232 | 99.1% | ||
| Yes | 44 | 0.2% | 4 | 0.3% | 11 | 0.9% | ||
| Open wound/wound infection | .216 | .057 | ||||||
| No | 20,714 | 99.6% | 1305 | 99.8% | 1234 | 99.3% | ||
| Yes | 77 | 0.4% | 2 | 0.2% | 9 | 0.7% | ||
| Chronic steroid use | .005 | <.001 | ||||||
| No | 19,840 | 95.4% | 1225 | 93.7% | 1094 | 88.0% | ||
| Yes | 951 | 4.6% | 82 | 6.3% | 149 | 12.0% | ||
| Bleeding disorders | .017 | .006 | ||||||
| No | 20,269 | 97.5% | 1260 | 96.4% | 1196 | 96.2% | ||
| Yes | 522 | 2.5% | 47 | 3.6% | 47 | 3.8% | ||
| Transfusion prior to surgery | .325 | <.001 | ||||||
| No | 20,748 | 99.8% | 1306 | 99.9% | 1231 | 99.0% | ||
| Yes | 43 | 0.2% | 1 | 0.1% | 12 | 1.0% | ||
| Anemia (male Hct < 39, female Hct < 36) | <.001 | <.001 | ||||||
| No | 17,229 | 82.9% | 964 | 73.8% | 937 | 75.4% | ||
| Yes | 3537 | 17.0% | 342 | 26.2% | 304 | 24.5% | ||
ASA, American Society of Anesthesiologists; COPD, chronic obstructive pulmonary disease; TSA, total shoulder arthroplasty.
Bold P values indicate statistical significance with P < .05.