Table 2 Risk factors in patients with IPG unidentified during operation
Variable | IPG identified 231 cases | IPG unidentified 5 cases | Chi-square or T value | P value |
|---|---|---|---|---|
Age | 45.06 ± 11.14 | 57.06 ± 9.76 | -2.496 | 0.013 |
Tumor side | 106/125 | 1/4 | / | 0.381 |
Body mass index (Kg/m2) | 23.00 ± 2.69 | 22.59 ± 5.54 | 0.165 | 0.877 |
Years(≤ 55y/>55y) | 189/42 | 3/2 | / | 0.234 |
Sex (Male/Female) | 58/173 | 1/4 | / | 1.000 |
Total number of lymph nodes | 9.42 ± 8.14 | 8.6 ± 2.88 | 0.223 | 0.824 |
Numbers of lymph node metastases | 1.09 ± 1.99 | 0.60 ± 1.34 | 0.544 | 0.587 |
Diabetes | 18/231 | 1/5 | / | 0.345 |
Hypertension | 30/231 | 2/5 | / | 0.137 |
Thyroid disease (Hashimoto or nodular goiter) | 194/231 | 3/5 | / | 0.192 |