Table 1 Characteristics of the Sample (n = 384)
Variable | Mean (sd) or % |
|---|---|
Demographic | |
 Age | 63.18 (8.03) |
 Sex (female) | 66.9% |
 Race (African American) | 34.90% |
 Education | |
  Less than high school | 5.7% |
  High school graduate | 22.4% |
  Some college | 26.3% |
  College degree or higher | 45.6% |
 Assistance at home (no) | 12.0% |
Overall Health | 11.2% |
 Modified Charlson comorbidity score | 8.64 (4.07) |
 Opioid use (yes) | 31.3% |
 Number of bodily pain sites | 5.58 (4.03) |
Self-reported Knee Symptoms | |
 WOMAC Pain | 11.39 (3.36) |
Psychological Health | |
 Patient Health Questionnaire (PHQ-8) | 5.87 (4.89) |
 Generalized Anxiety Scale (GAD-7) | 5.37 (4.94) |
 Self-efficacy Scale | 49.32 (17.74) |
 Pain Catastrophizing Scale | 29.95 (9.27) |
Expectation Scalea (higher scores indicate worse expectation) | |
 1-year pain expectation | 1.36 (1.96) |
 1-year activity expectation | 1.57 (2.09) |
 1-year complete success expectation | 0.57 (1.31) |
 1-year complication expectation | 1.55 (2.47) |
 Total score (0 to 40) | 5.05 (5.31) |