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Table 4 The association between surgery type and micrometastatic risk: multi-variate analysis

From: Less micrometastatic risk related to circulating tumor cells after endoscopic breast cancer surgery compared to open surgery

VariableModel 0 aModel 1 bModel 2 c
 OR (95% CI)P valueOR (95% CI)P valueOR (95% CI)P value
Surgery type2.39 (0.93, 6.13)0.0702.60 (0.99, 6.80)0.0523.19 (1.05, 9.65)0.040
Menopausal status0.64 (0.25, 1.65)0.3552.16 (0.79, 5.87)0.1310.15 (0.02, 1.12)0.064
Age1.07 (0.68, 1.67)0.7690.18 (0.03, 1.21)0.0772.23 (0.79, 6.28)0.130
Pre-surgery CTC status0.37 (0.10, 1.35)0.1316.31 (0.10, 418.40)0.389
Tumor size1.15 (0.46, 2.87)0.761
Lymph node1.42 (0.86, 2.33)0.173
Tumor stage1.41 (0.78, 2.55)0.261
Histology type- e0.999 
ER1.84 (0.72, 4.73)0.205
PR1.33 (0.54, 3.28)0.529
HER-20.91 (0.61, 1.38)0.669
Interaction d0.15 (0.01, 2.56)0.191
Final model0.0570.025
  1. OR indicates odds ratio
  2. aUni-variate logistic analysis
  3. bAnalyzed variables included: surgery type, menopausal status, age, tumor size, lymph node, tumor stage, histology type, estrogen receptors status, progesterone receptors status and HER-2 status. Analyzed by binary logistic regression (backward likelihood method). Only the variables remained in the final model were listed in the table
  4. cAdditionally included pre-surgery CTC status and its interaction with surgery type based on model 1. Surgery type, pre-surgery CTC status and their interaction were enforcedly remained in the model
  5. dThe interaction of surgery type and pre-surgery CTC status
  6. eThe range was too large to be appropriately represented