Table 1.
Sample Sociodemographic, Psychological, and Clinical Characteristics, Combined and by Placebo Treatment
| Subjects Receiving Placebo Treatment |
Placebo Pill | Sham Acupuncture | |
|---|---|---|---|
| Sample Size | 119 | 59 | 60 |
| Age in years, mean (s.d.) | 38.2 (11.2) | 38.9 (11.6) | 37.5 (11.0) |
| Female (%) | 51 | 49 | 53 |
| White race (%) | 81 | 78 | 83 |
| At least 4 years of college (%) | 78 | 75 | 82 |
| Diagnosis of tendonitis or epicondylitis (%) | 66 | 66 | 67 |
| Symptoms >1 year duration (%) | 66 | 64 | 67 |
| Baseline CES depression score, mean (s.d.) | 9.6 (6.9) | 9.6 (6.9) | 9.6 (7.1) |
| Baseline Anxiety score, mean (s.d.) | 13.2 (2.7) | 13.1 (2.8) | 13.3 (2.7) |
| Belief in effectiveness of CAM, mean (s.d.)* | 3.1 (1.1) | 3.1 (1.2) | 3.1 (1.1) |
| Belief in effectiveness of acupuncture, mean (s.d.)* | 3.8 (0.9) | 3.8 (0.9) | 3.8 (0.9) |
| Belief in effectiveness of conventional medicine, mean (s.d.)* | 3.1 (1.0) | 3.2 (1.0) | 3.0 (0.9) |
| Baseline pain score, mean (s.d.) | 5.2 (1.5) | 5.1 (1.6) | 5.4 (1.4) |
| Expected pain score in 2 week on assigned treatment, mean (s.d.) | 3.6 (1.5) | 3.6 (1.6) | 3.6 (1.4) |
| Pain score at end of treatment, mean (s.d.) | 3.8 (1.9) | 3.9 (1.9) | 3.6 (1.9) |
s,d.=standard deviation
*
Sample size<100 for combined analysis