Table 1.
Patient demographics and pre-operative medical characteristics
| Received Information regarding pain treatment options | ||||
|---|---|---|---|---|
| Yes 1083 (%) |
No 526 (%) |
Total 1609 |
P | |
| Demographics | ||||
| Age | ||||
| Mean [SD] | 66.56 [9.06] | 66.99 [9.40] | 66.70 [9.17] | 0.510 |
| Range | 30–97 | 30–99 | 30–99 | |
| Gender | ||||
| Female | 652 (60.2) | 333 (63.3) | 985 | 0.231 |
| Male | 431 (39.8) | 193 (36.7) | 624 | |
| Race | ||||
| White | 1004 (94.6) | 484 (94.7) | 1488 | 0.942 |
| Non-White | 57 (5.4) | 27 (5.3) | 84 | |
| Ethnicity | ||||
| Hispanic | 12 (1.3) | 8 (1.8) | 20 | 0.444 |
| Non-Hispanic | 937 (98.7) | 440 (98.2) | 1377 | |
| Education Level | ||||
| High School Graduate or less | 272 (27.2) | 150 (30.6) | 422 | 0.301 |
| Post High School | 730 (72.8) | 341 (69.4) | 1071 | |
| Household Income | ||||
| Less than or equal to $45,000 | 275 (32.2) | 137 (33.6) | 412 | 0.821 |
| Greater than $45,000 | 579 (67.8) | 271 (66.4) | 850 | |
| Pre-operative Medical Characteristics | ||||
| BMI | ||||
| Mean [SD] | 30.30 (5.89) | 30.41 (5.84) | 30.34 (5.87) | 0.764 |
| Range | 15.04–54.92 | 18.04–54.92 | 15.04–54.92 | |
| Surgery Type | ||||
| Total Knee Replacement | 672 (62%) | 315 (60%) | 987 (61.3%) | 0.435 |
| Total Hip Replacement | 411 (38%) | 211 (40%) | 622 (38.7%) | |
| KOOS/HOOS pain in operative joint | ||||
| None/mild | 108 (10.4) | 48 (9.6) | 156 | 0.708 |
| Moderate/severe | 933 (89.6) | 451 (90.4) | 1384 | |
| PCS | ||||
| Mean [SD] | 33.07 [8.17] | 32.46 [8.62] | 32.87 [8.32] | 0.208 |
| Range | 10.44–59.60 | 12.19–54.66 | 10.44–59.60 | |
| < 40 | 820 (79.8) | 381 (80.0) | 1201 | 0.48 |
| 40 or greater | 208 (20.2) | 95 (20.0) | 303 | |
| MCS | ||||
| Mean [SD] | 53.07 [11.60] | 52.22 [12.26] | 52.80 [11.82] | 0.213 |
| Range | 18.67–76.06 | 10.54–75.34 | 10.54–76.06 | |
| Medical Comorbidity | ||||
| 0 | 696 (66.2) | 335 (65.2) | 1031 | 0.141 |
| 1 | 198 (18.9) | 82 (15.9) | 280 | |
| 2–5 | 87 (8.3) | 58 (11.3) | 145 | |
| ≥6 | 70 (6.6) | 39 (7.6) | 109 | |
| Pain in other knee/hip joints | ||||
| 0 | 776 (73.8) | 355 (71.0) | 1131 | 0.121 |
| 1–3 | 276 (26.2) | 145 (29.0) | 421 | |
| Lower back pain | ||||
| None/mild | 793 (80.6) | 382 (80.6) | 1175 | 1.0 |
| Moderate/severe | 191 (19.4) | 92 (19.4) | 283 | |
| Surgical Practice | ||||
| Low volume (< 100 patients) | 417 (38.8) | 191 (36.9) | 608 | 0.098 |
| Moderate Volume (100 to < 200 patients) | 366 (34.1) | 160 (30.9) | 526 | |
| High volume (≥ 200 patients) | 291(27.1) | 167 (32.2) | 458 | |