Table 3.
Adjusted Odds Ratio (95% CI) of the Associations of Patient and Physician-level Characteristics With Patient Receipt of RAI for Low-Risk Thyroid Cancer
| Adjusted OR | 95% CI | |
|---|---|---|
| PHYSICIAN CHARACTERISTICS | ||
| Physician propensity to use RAI for low-risk thyroid cancer | ||
| Would not use it | 1.0 | ref |
| Would use it | 1.84 | 1.29–2.61 |
| Practice setting | ||
| Private Practice | 1.0 | ref |
| Other | 0.73 | 0.51–1.06 |
| Number of patients with thyroid cancer | ||
| 0–20 | 1.0 | ref |
| 21–40 | 0.62 | 0.40–0.96 |
| More than 40 | 0.45 | 0.30–0.67 |
| Specialty | ||
| Endocrinology | 1.0 | ref |
| General Surgery/Otolaryngology | 0.71 | 0.51–0.99 |
| PATIENT CHARACTERISTICS | ||
| Sex | ||
| Female | 1.0 | ref |
| Male | 0.96 | 0.66–1.39 |
| Age at diagnosis | ||
| 18–44 | 1.0 | ref |
| 45–54 | 1.69 | 1.16–2.45 |
| 55–64 | 1.21 | 0.81–1.81 |
| 65–79 | 1.00 | 0.60–1.64 |
| Race | ||
| White | 1.0 | ref |
| Non-White/Multiracial | 0.96 | 0.66–1.38 |
| Ethnicity | ||
| Hispanic | 1.0 | ref |
| Non-Hispanic | 0.91 | 0.55–1.49 |
| Education | ||
| High school and below | 1.0 | ref |
| Some college | 1.20 | 0.74–1.95 |
| College degree and above | 0.88 | 0.56–1.37 |
| Health insurance | ||
| Private | 1.0 | ref |
| Other | 1.10 | 0.80–1.51 |
| Tumor size | ||
| ≤ 1cm | 1.0 | ref |
| 1–2 cm | 5.83 | 4.10–8.28 |
| 2–4 cm | 17.63 | 11.45–27.16 |
| Number of comorbidities | ||
| 0 | 1.0 | ref |
| 1 | 0.82 | 0.62–1.10 |
| 2 or more | 1.03 | 0.71–1.49 |
| Worry about thyroid cancer | ||
| Less worry | 1.0 | ref |
| More worry | 1.27 | 0.94–1.71 |
Abbreviations: OR, odds ratio; RAI, radioactive iodine.