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| Asymptomatic | Symptomatic | P value | |
|---|---|---|---|
| N | 48 | 51 | |
| Mean largest nodule, cm (SD) | 2.2 (1.3) | 3.8 (1.9) | <0.0001 |
| Mean largest lobe, cm (SD) | 4.9 (1.1) | 6.2 (1.9) | <0.001 |
| Visible thyromegaly, N (%) | 4.0 (15.4) | 30.0 (65.2) | <0.0001 |
SD, standard deviation.
