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Clinicopathologic Features of the Study Cohort
| Variable | Value (%) (participant N = 483) |
|---|---|
| Age at diagnosis (years) | |
| Mean, SD | 52, ±15 |
| Median | 52 |
| Range | 20–89 |
| Tumor size | |
| ≤1 cm | 361 (75) |
| 1.1–1.5 cm | 122 (25) |
| Sex | |
| Female | 372 (77) |
| Male | 111 (23) |
| Diagnosis | |
| PTC | 386 (80) |
| Suspicious for PTC | 97 (20) |
| Duration of active surveillance (years) | |
| Mean, SD | 4, ±2.3 |
| Median | 3.7 |
| Range | 0.5–17 |
PTC, papillary thyroid cancer; SD, standard deviation.
