Table IV.
Patient-reported outcome measures and clinical outcomes.
| Variable | Healthy weight (BMI 18.5 < 25 kg/m2), n = 1440 | Morbidly obese (BMI ≥ 40 kg/m2), n = 341 | p-value* |
|---|---|---|---|
| Mean six-week postoperative (SD) | |||
| Pain (n = 987) | 1.41 (1.6) | 1.51 (1.8) | 0.219 |
| UCLA (n = 983) | 5.03 (1.4) | 4.52 (1.2) | < 0.001 |
| HOOS, JR (n = 847) | 77.67 (13.0) | 75.35 (13.9) | 0.012 |
| PROMIS physical (n = 971) | 46.50 (5.4) | 42.32 (5.0) | < 0.001 |
| PROMIS mental (n = 971) | 52.55 (7.1) | 49.15 (6.5) | < 0.001 |
| SANE (n = 905) | 76.96 (17.6) | 79.95 (16.1) | 0.209 |
| Mean six-week satisfaction (SD) | |||
| Pain relief (n = 826) | 8.92 (1.6) | 9.14 (1.5) | 0.061 |
| Functional improvement (n = 818) | 8.62 (1.7) | 8.89 (1.5) | 0.033 |
| Procedure met expectations (n = 810) | 9.04 (1.6) | 9.27 (1.5) | 0.036 |
| Surgeon (n = 835) | 9.78 (0.7) | 9.85 (0.7) | 0.097 |
| Mean one-year postoperative (SD) | |||
| Pain (n = 531) | 0.67 (1.3) | 0.98 1(.8) | 0.041 |
| UCLA (n = 525) | 6.45 (1.9) | 6.02 (1.7) | 0.009 |
| HOOS, JR (n = 447) | 89.75 (13.7) | 85.27 (13.5) | 0.002 |
| PROMIS physical (n = 628) | 48.91 (6.4) | 44.51 (5.7) | < 0.001 |
| PROMIS mental (n = 628) | 52.90 (7.1) | 50.23 (6.8) | < 0.001 |
| SANE (n = 469) | 92.09 (12.6) | 89.72 (16.7) | 0.096 |
*
Variables presented as counts and percents were analyzed using chi-squared test. Variables presented as mean and SD were analyzed using one- or two-tailed t-tests.
HOOS, JR, Hip Disability and Osteoarthritis Outcome Score, Joint Replacement; PROMIS, Patient-Reported Outcomes Measurement Information System; SANE, Single Assessment Numeric Evaluation; SD, standard deviation; UCLA, University of California and Los Angeles.