Table 2.
Multivariate analysis of risk factors for postoperative hypocalcemia after serum Mg stratification
| Clinical factors | P | OR (95% CI) | |
|---|---|---|---|
| Female | <0.001 | 7.86 (2.92, 21.20) | |
| LND | 0.002 | 3.93 (1.62, 9.52) | |
| Hypoparathyroidism | <0.001 | 5.13 (2.52, 10.42) | |
| Pre-Ca at high level (2.3≤ Pre-Ca ≤2.60) | 0.006 | 0.39 (0.20, 0.76) | |
| Po-Mg <0.66 as reference | Po-Mg ≥0.74/mmol L−1 | <0.001 | 0.08 (0.03, 0.24) |
| 0.66≤ Po-Mg <0.74 | 0.049 | 0.39 (0.16, 1.00) | |
| Po-Mg ≥0.74 as reference | Po-Mg <0.66/mmol L−1 | <0.001 | 11.92 (4.21, 33.70) |
| 0.66≤ Po-Mg <0.74 | <0.001 | 4.69 (2.11, 10.39) | |
| Extent of surgery | 0.051 | – | |
| CND | 0.956 | – | |
| VD deficiency | 0.336 | – | |
| Pre-Mg | 0.803 | – | |
| Auto-T | 0.567 | – |
Abbreviations: UTL, unilateral lobectomy; TT, total thyroidectomy; CND, central lymph node dissection; LND, lateral lymph node dissection; VD, vitamin D; Auto-T, autotransplantation; Pre, preoperative; Po, postoperative.