Table 3. Comparison of surgical outcomes between MIT and COT groups.
| Outcomes | MIT (n=617) | COT (n=2,674) | P value |
|---|---|---|---|
| Complications | 44 (7.1) | 151 (5.6) | <0.001 |
| Transient hoarseness | 40 (6.6) | 67 (2.5) | |
| Seroma | 2 (0.3) | 62 (2.4) | |
| Hornor syndrome | 1 (0.1) | 4 (0.1) | |
| Chyle leak | 1 (0.1) | 14 (0.5) | |
| Hematoma | 0 (0.0) | 4 (0.1) | |
| No. of pain-killer used | 1.2±0.5 (range, 0–3) | 2.7±1.6 (range, 0–6) | <0.001 |
| Hospital stay (day) | 2.7±0.6 (range, 1–9) | 3.1±0.8 (range, 1–12) | <0.001 |
| Recurrence | 1 (0.1) | 3 (0.1) | 0.564 |
Data are expressed as patient’s number (%), or mean ± SD. A statistically significant difference was defined as P<0.05. MIT, minimally invasive thyroidectomy; COT, conventional open thyroidectomy; SD, standard deviation.