Table 4:
Multivariable Analysis of Invitation to Participate in a Clinical Trial, Among All Patients, N=2472
| Characteristic | Odds Ratio (95% CI) | P |
|---|---|---|
| Age | ||
| ≤50 | Ref | 0.02 |
| 51–65 | 0.77 (0.55–1.07) | |
| >65 | 0.43 (0.24–0.78) | |
| Race | ||
| White | Ref | |
| Black | 1.26 (0.75–2.12) | 0.76 |
| Latina | 1.12 (0.73–1.74) | |
| Asian | 1.35 (0.75–2.46) | |
| Acculturation | ||
| Low | Ref | 0.82 |
| High | 1.06 (0.62–1.82) | |
| Marital status | ||
| Not married | Ref | 0.19 |
| Married | 1.02 (0.70–1.48) | |
| Education | ||
| High school or less | Ref | 0.44 |
| Some college or technical school | 1.23 (0.61–2.47) | |
| College graduate or higher | 1.50 (0.89–1.82) | |
| Annual family income | ||
| <$40,000 | Ref | 0.23 |
| ≥$40,000 | 1.31 (0.85–2.03) | |
| Insurance | ||
| Private | Ref | |
| Medicare | 0.91 (0.54–1.53) | 0.83 |
| Medicaid | 1.13 (0.64–2.00) | |
| Geographic site | ||
| Los Angeles County | Ref | <0.01 |
| Georgia | 0.54 (0.34–0.85) | |
| Time to nearest hospital | ||
| 30 minutes or less | Ref | 0.74 |
| 31 minutes or more | 0.93 (0.62–1.40) | |
| Employment status at time of survey | ||
| Not employed | Ref | |
| Employed without benefits (paid sick leave and a flexible work schedule) | 1.33 (0.91–1.95) | 0.35 |
| Employed with benefits (paid sick leave and/or a flexible work schedule) | 1.21 (0.77–1.89) | |
| Comorbid conditions | ||
| 0 | Ref | 0.21 |
| 1 or more | 0.79 (0.55–1.14) | |
| Disease stage | ||
| 0 | 1.80 (1.16–2.79) | |
| I | Ref | <0.01 |
| II | 1.84 (1.23–2.80) | |
| Surgical procedure | ||
| Mastectomy | Ref | 0.81 |
| Lumpectomy | 0.95 (0.64–1.42) | |
| Receipt of chemotherapy | ||
| No | Ref | <0.01 |
| Yes | 2.32 (1.61–3.33) | |
| Receipt of radiation therapy | ||
| No | Ref | <0.01 |
| Yes | 1.53 (1.03–2.27) | |
| Decision-making style | ||
| Intuitive | Ref | 0.04 |
| Rational | 1.37 (1.02–1.84) | |