Table II.
Preoperative patient demographic, disease-specific, and surgical characteristics of the 1042 patients undergoing primary shoulder arthroplasty
| Variable | All (N = 1042) | GHOA-rTSA (n = 275) | CTA-rTSA (n = 308) | GHOA-aTSA (n = 459) | P value |
|---|---|---|---|---|---|
|
| |||||
| General patient characteristics | |||||
| Age, yr, median (IQR) | 69 (63, 75) | 72 (67, 77) | 72 (66.8, 76) | 65 (59, 71) | <.001 |
| BMI, median (IQR) | 30 (26.8, 34.3) | 29.6 (26.4, 33.3) | 29.6 (25.8, 34.2) | 30.5 (27.4, 34.8) | .003 |
| CCI, median (IQR) | 0 (0, 2) | 0 (0, 2) | 1 (0, 2) | 0 (0, 1) | .0027 |
| Education, yr, median (IQR) | 14 (12, 16) | 14 (12, 16) | 13 (12, 16) | 14 (12, 16) | <.001 |
| ADI, median (IQR) | 46 (28, 63) | 45 (27, 64) | 49 (31, 65) | 44 (25, 61) | .068 |
| Sex, n (%) | |||||
| Female | 489 (47) | 135 (49.1) | 170 (55.2) | 184 (40.1) | <.001 |
| Male | 553 (53) | 140 (50.9) | 138 (44.8) | 275 (59.9) | |
| Race, n (%) | |||||
| White | 930 (93) | 259 (95.2) | 270 (92.2) | 401 (92.4) | .316 |
| Black | 57 (6) | 12 (4.41) | 17 (5.8) | 28 (6.5) | |
| Other | 12 (1) | 1 (0.37) | 6 (2.0) | 5 (1.1) | |
| Smoking status, n (%) | |||||
| Current | 74 (7) | 17 (6.2) | 30 (9.7) | 27 (5.9) | .240 |
| Quit | 434 (42) | 117 (42.5) | 130 (42.2) | 187 (40.7) | |
| Never | 534 (51) | 141 (51.3) | 148 (48.1) | 245 (53.4) | |
| Preoperative opioid use, n (%) | |||||
| Yes, within 3 mo | 317 (30) | 76 (27.6) | 108 (35.1) | 133 (29.0) | .0017 |
| Yes, but not within 3 mo | 219 (21) | 57 (20.7) | 80 (26.0) | 82 (17.9) | |
| None in 12 mo | 506 (49) | 142 (51.6) | 120 (39.0) | 244 (53.2) | |
| Chronic pain: yes, n (%) | 195 (19) | 48 (17.5) | 67 (21.8) | 80 (17.4) | .265 |
| Insurance status, n (%) | |||||
| Private | 263 (25.4) | 51 (18.7) | 46 (15.0) | 166 (36.3) | <.001 |
| Medicare | 729 (70.2) | 217 (79.5) | 247 (80.5) | 265 (57.9) | |
| Medicaid | 32 (3.1) | 2 (0.7) | 7 (2.3) | 23 (5.0) | |
| Worker's compensation | 14 (1.4) | 3 (1.1) | 7 (2.3) | 4 (0.9) | |
| Psychiatric diagnosis: yes, n (%) | 314 (30) | 69 (25.1) | 104 (33.8) | 141 (30.7) | .070 |
| Disease and surgical characteristics, n (%) | |||||
| Prior shoulder surgery: yes | 189 (18) | 30 (10.9) | 98 (31.8) | 61 (13.3) | <.001 |
| Glenoid bone loss: yes | 590 (57) | 222 (80.7) | 105 (34.1) | 263 (57.3) | <.001 |
| Rotator cuff status | |||||
| 1 | 734 (70.4) | 275 (100) | — | 459 (100) | <.001 |
| 2 | 187 (18.0) | — | 187 (60.7) | — | |
| 3 | 66 (6.3) | — | 66 (21.4) | — | |
| 4 | 55 (5.3) | — | 55 (17.9) | — | |
| Humeral component | |||||
| Uncemented | 914 (88) | 264 (96.0) | 242 (78.6) | 408 (88.9) | <.001 |
| Cemented | 128 (12) | 11 (4.0) | 66 (21.4) | 51 (11.1) | |
| Superior-posterior rotator cuff repair: yes | 18 (1.7) | 1 (0.4) | 13 (4.2) | 4 (0.9) | .001 |
IQR, interquartile range; BMI, body mass index; CCI, Charlson Comorbidity Index; ADI, Area Deprivation Index; GHOA, glenohumeral osteoarthritis; rTSA, reverse total shoulder arthroplasty; CTA, rotator cuff tear arthropathy; aTSA, primary anatomic total shoulder arthroplasty.
Results are presented as median (IQR) for continuous variables and as counts (%) for categorical variables. All statistically significant variables at α = 0.05 remain so after Bonferroni-Holm multiple comparison adjustment.