Table 2 Ridge regression model on the relationship between CTC subtypes and prognosis.

From: Small cell size circulating tumor cells predict the prognosis of high-risk non-muscle invasive bladder cancer patients

 

Intercept

CTC

Large CTC

Small CTC

Cancer embolus

Triploid CTC

Tetraploid CTC

 ≥ pentaploid CTC

β

 − 2.748

 − 0.012

 − 0.025

0.168

0.025

0.057

0.113

 − 0.016

B

 − 2.310

 − 0.079

 − 0.196

0.407

0.010

0.090

0.142

 − 0.116

λ

        

Accuracy (CI 95%)

        
 

Triploid small CTC

Tetraploid small CTC

 ≥ pentaploid small CTC

Triploid large CTCs

Tetraploid large CTC

 ≥ pentaploid large CTC

Model

β

0.103

0.231

0.626

 − 0.127

 − 0.221

 − 0.022

 

B

0.138

0.297

0.514

 − 0.074

 − 0.211

 − 0.168

 

λ

      

0.189

Accuracy (CI 95%)

      

0.947 (0.740, 0.999)

  1. β: partial regression coefficient, B: standard regression coefficient, λ: ridge parameter used as a regularization term, the prediction formula is \(P\left(Y=1\right)=\frac{1}{1+{e}^{-({\beta }_{0}+{\beta }_{1}{X}_{1}+{\beta }_{2}{X}_{2}+{\beta }_{3}{X}_{3}+\dots +{\beta }_{n}{X}_{n})}}\).
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