Risk factor | LNM-negative | LNM-positive | Univariable analysis | Multivariable analysis | ||||
---|---|---|---|---|---|---|---|---|
Odds ratio | 95% CI | P | Odds ratio | 95% CI | P | |||
n | 140 | 76 | ||||||
Sex (male) | 24 (17.1) | 25 (32.9) | 2.37 | 1.24–4.56 | 0.009 | 2.83 | 1.36–5.98 | 0.006 |
Age | 44.79 ± 12.50 | 41.54 ± 13.92 | 0.98 | 0.96–1.00 | 0.082 | 0.98 | 0.96–1.01 | 0.183 |
Tumor size in mm | 7.00 (IQR, 4.00–9.00) | 7.00 (IQR, 5.00–9.00) | 1.05 | 0.94–1.18 | 0.378 | 1.04 | 0.91–1.18 | 0.579 |
Multifocality | 27 (19.3) | 16 (21.1) | 1.12 | 0.55–2.21 | 0.756 | 1.09 | 0.49–2.39 | 0.834 |
Neck dissection vs. node picking | 93 (66.4) | 72 (94.7) | 9.10 | 3.50–31.17 | <0.001 | 6.55 | 2.41–23.05 | <0.001 |
Total thyroidectomy vs. subtotal or hemithyroidectomy | 131 (93.6) | 74 (97.4) | 2.54 | 0.63–16.96 | 0.241 | 1.28 | 0.25–9.94 | 0.782 |
mETE | 17 (12.1) | 27 (35.5) | 3.99 | 2.02–8.09 | <0.001 | 4.33 | 2.02–9.60 | <0.001 |
IQR = interquartile range.
Only patients who had lymph nodes resected are included (n = 216). Qualitative data are number followed by percentage; continuous data are mean ± SD, or median followed by IQR.