Factors associated with immediate postoperative complications
| Adjusted ORs†(95% CI) | ||
| Recurrent laryngeal nerve palsy (n=1384) | Hypocalcaemia (n=1182) | |
| Patient gender | ||
| Female | 0.78 (0.48 to 1.25) | 2.74 (1.74 to 4.34) |
| Male* | 1.0 | 1.0 |
| Patient age (years) | ||
| Age≤40 | 0.83 (0.47 to 1.46) | 2.57 (1.70 to 3.88) |
| 40<age≤50 | 0.72 (0.39 to 1.32) | 2.03 (1.32 to 3.14) |
| 50<age≤60 | 0.80 (0.46 to 1.39) | 1.02 (0.65 to 1.61) |
| Age>60* | 1.0 | 1.0 |
| Thyroid disease | ||
| Malignant neoplasm | 1.38 (0.47 to 4.08) | 1.35 (0.55 to 3.30) |
| Non-toxic solitary nodule* | 1.0 | 1.0 |
| Non-toxic multinodular goitre | 1.49 (0.54 to 4.12) | 1.25 (0.53 to 2.95) |
| Graves disease | 0.62 (0.13 to 2.83) | 1.56 (0.60 to 4.08) |
| Others‡ | 0.86 (0.20 to 3.78) | 1.05 (0.32 to 3.37) |
| Type of surgery | ||
| Lobectomy | 0.46 (0.15 to 1.36) | |
| Total thyroidectomy* | 1.0 | 1.0 |
| Completion thyroidectomy | 1.50 (0.68 to 3.28) | 1.20 (0.65 to 2.22) |
| Thyroidectomy with lymph-node resection | 3.35 (1.67 to 6.75) | 2.90 (1.69 to 4.97) |
↵* Reference group.
↵† No interactions were observed in the models. The Hosmer–Lemeshow goodness-of-fit statistics for the recurrent laryngeal nerve palsy and hypocalcaemia models were 0.93 and 0.52, respectively. The c-statistics for the recurrent laryngeal nerve palsy and hypocalcaemia models were 0.65 (95% CI 0.60 to 0.71) and 0.68 (95% CI 0.64 to 0.72), respectively.
↵‡ Autoimmune thyroiditis and thyrotoxicosis with multinodular goitre or single thyroid nodule.