Table 1.
Descriptive statistics for the TJA cohort
| Variable | TJA cohort (N = 2638) |
|---|---|
| Data from medical record | |
| Age, mean (SD), yrs | 64.4 (9.6) |
| Sex, no. (%) | |
| Female | 1404 (53.3%) |
| Male | 1234 (46.8%) |
| Race, no. (%) | |
| White | 2432 (92.2%) |
| Non-White | 206 (7.8%) |
| Tobacco use, no. (%) | |
| Never | 1299 (49.2%) |
| Past or current | 1017 (38.6%) |
| Pre-operative pain intensity, 0–10 scale, mean (SD) | 3.6 (2.9) |
| BMI, mean (SD), kg/m2 | 29.9 (5.7) |
| Comorbidity count, mean (SD) | 0.6 (0.9) |
| TJA location, no. (%) | |
| Hip | 1146 (43.4%) |
| Knee | 1265 (48.0%) |
| Shoulder | 227 (8.6%) |
| Number of surgeries, no. (%) | |
| 1 | 2037 (77.2%) |
| ≥ 2 | 601 (22.8%) |
| Data from survey responses | |
| Survey time, mean (SD), days | 176 (90.3) |
| Graded Chronic Pain Scale-Revised, no. (%) | |
| No chronic pain | 1175 (44.5%) |
| Mild chronic pain | 485 (18.4%) |
| Moderate chronic pain | 693 (26.3%) |
| High impact chronic pain | 285 (10.8%) |
| Sleep, mean (SD) | 46.6 (8.9) |
| Anxiety, mean (SD) | 47.6 (8.0) |
| Dyspnea, mean (SD) | 30.3 (8.7) |
| Physical function, mean (SD) | 47.9 (8.6) |
| Pain interference, mean (SD) | 48.7 (8.9) |
BMI, body mass index; SD, standard deviation; TJA, total joint arthroplasty
PROMIS measures for sleep, anxiety, dyspnea, physical function, and pain interference are scored on a standardized scale ranging from 0 to 100