Table 3.
Results from Propensity Score Matching (1-to-1 matching)
| Outcomes | KOOS-Jr | PROMIS-PH | NPRS | |||
|---|---|---|---|---|---|---|
| P | P | P | ||||
| Surgical approach (ref = cementless) | ||||||
| Cemented | -1.37 | .113 | -0.11 | .766 | -0.34 | .022 |
| Follow-up (ref = baseline) | ||||||
| 1-month | 15.7 | .000 | 3.43 | .000 | -2.48 | .000 |
| 3-month | 21.0 | .000 | 5.90 | .000 | -3.17 | .000 |
| 6-month | 23.5 | .000 | 7.17 | .000 | -3.42 | .000 |
| Approach interaction (ref = cementless) | ||||||
| Cemented *1-month | 2.46 | .042 | 0.61 | .303 | 0.04 | .862 |
| Cemented *3-month | 2.80 | .037 | 1.19 | .076 | -0.07 | .740 |
| Cemented *6-month | 3.33 | .028 | 0.69 | .302 | 0.05 | .836 |
| AGE | ||||||
| Age (mean) | 0.27 | .000 | 0.09 | .000 | -0.03 | .000 |
| Sex (ref = male) | ||||||
| Female | -1.48 | .023 | -1.09 | .001 | 0.20 | .058 |
| Body Mass Index | -0.08 | .091 | -0.16 | .000 | 0.002 | .813 |
| Race (ref = white) | ||||||
| Black | -3.41 | .004 | -1.86 | .000 | 1.11 | .000 |
| Other or multiple | -1.39 | .271 | -1.91 | .000 | 0.58 | .001 |
| Hispanic (ref = no) | ||||||
| Yes | 2.51 | .106 | 1.28 | .064 | 0.43 | .077 |
| Education (ref = less than college) | ||||||
| College or higher | 0.61 | .392 | 0.93 | .008 | -0.20 | .074 |
| Working status (ref = working) | ||||||
| Unemployed | -0.68 | .728 | -0.81 | .337 | 0.03 | .945 |
| Sick leave or maternity leave | -2.69 | .036 | -4.13 | .000 | 0.90 | .000 |
| Disabled due to hip or knee pain | 0.55 | .497 | -0.84 | .038 | -0.02 | .904 |
| Alcohol use (ref = never) | ||||||
| Monthly or less | -1.10 | .227 | 0.52 | .213 | 0.06 | .652 |
| 2–4 times a month | -2.11 | .061 | 0.48 | .329 | 0.04 | .798 |
| 2–3 times a week | -0.01 | .995 | 1.64 | .000 | -0.19 | .229 |
| 4 or more times a week | 0.79 | .502 | 1.72 | .001 | -0.25 | .135 |
| Smoke (ref = never) | ||||||
| Current | -3.69 | .029 | -1.43 | .078 | 0.59 | .015 |
| Former | -0.57 | .411 | -1.00 | .003 | 0.11 | .339 |
| Comorbidity (ref = no) | ||||||
| COPD | -2.18 | .152 | -1.54 | .009 | 0.07 | .746 |
| Paralysis | 15.9 | .028 | 15.2 | .000 | -1.69 | .173 |
| Heart attack | 0.22 | .863 | -0.09 | .888 | 0.36 | .149 |
| Carotid artery disease | -1.28 | .621 | -0.24 | .858 | -0.23 | .626 |
| Stroke | 2.00 | .279 | 0.53 | .507 | -1.60 | .680 |
| Rheumatoid arthritis | -1.73 | .243 | -1.64 | .004 | 0.41 | .038 |
| Diabetes | 1.98 | .022 | -0.72 | .108 | 0.03 | .827 |
| Cancer | 1.46 | .210 | 0.45 | .374 | -0.11 | .493 |
| Liver disease | -0.34 | .876 | 0.66 | .507 | -0.48 | .142 |
| Peripheral vascular disease | 3.13 | .133 | -1.26 | .192 | -0.48 | .149 |
| Kidney disease | -6.15 | .000 | -4.04 | .000 | 0.53 | .077 |
| Ulcer disease | -6.90 | .007 | -2.92 | .000 | 0.81 | .023 |
| HIV or AIDS | -5.50 | .289 | -4.44 | .084 | 1.12 | .194 |
| Constant | 37.3 | .000 | 43.5 | .000 | 7.17 | .000 |
Note: The estimated coefficients were from 1 to 1 nearest matching within caliper (0.25 SD)