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Table 3 Univariate and multivariate logistic regression analysis results

From: A new scoring system for risk stratification of thyroid tumors

Parameter Estimates

Ya

 

Sig.

Exp(B)

95% Confidence Interval for Exp(B)

 

Sig.

Exp(B)

95% Confidence Interval for Exp(B)

Lower Bound

Upper Bound

Lower Bound

Upper Bound

1

Intercept

0.992

   

2

0.125

   
 

nodule number

         
 

single

0b

    

0b

   
 

multiple

0.491

0.71

0.268

1.881

 

0.537

0.697

0.222

2.189

 

location

         
 

left

0b

    

0b

   
 

mid

0.416

1.707

0.47

6.199

 

0.857

1.142

0.27

4.825

 

right

0.577

1.463

0.384

5.571

 

0.563

1.56

0.346

7.034

 

isthmus

0.337

1.998

0.486

8.209

 

0.201

2.748

0.583

12.958

 

extrathyroidal extension

         
 

no

0b

    

0b

   
 

yes

0.965

1.015

0.527

1.954

 

0.53

0.775

0.349

1.718

 

Nodule max diameter

         
 

>4 cm

0b

    

0b

   
 

1–4 cm

0.661

1.277

0.428

3.81

 

0.983

0.987

0.293

3.327

 

≤1 cm

0.605

0.724

0.213

2.462

 

0.008

9.274

1.772

48.531

 

Echogenicity

         
 

Hypoechoic

0b

    

0b

   
 

Isoechoic

0.991

6.85E-08

0

.c

 

.

0.071

0.071

0.071

 

Hyperechoic

0.991

9.30E-08

0

.c

 

0.005

0.23

0.082

0.644

 

Aspect Ratio

         
 

<1

0b

    

0b

   
 

≥1

0.02

13.401

1.508

119.124

 

0.007

20.214

2.252

181.427

 

composition

         
 

mixed

0b

    

0b

   
 

solid

0.924

0.967

0.487

1.921

 

0.63

0.787

0.297

2.087

 

calcifications

         
 

absent

0b

    

0b

   
 

comet-tail artifacts

0.344

1.65

0.585

4.649

 

0.169

3.2

0.61

16.781

 

macrocalcification

0.435

0.664

0.237

1.856

 

0.148

2.505

0.723

8.68

 

microcalcification

0.323

0.576

0.193

1.72

 

0.357

1.676

0.558

5.034

 

shape

         
 

round to oval

0b

    

0b

   
 

irregular

0.95

1.042

0.288

3.772

 

0.234

2.162

0.607

7.704

 

Margin

         
 

Smooth

0b

    

0b

   
 

Irregular

0.82

1.177

0.287

4.827

 

0.018

6.199

1.374

27.961

 

halo

         
 

absence

0b

    

0b

   
 

regular complete halo

0.329

0.681

0.315

1.473

 

0.919

0.937

0.268

3.279

 

irregular interrupted halo

0.226

1.974

0.656

5.942

 

0.607

1.441

0.358

5.811

 

blood flow

         
 

3

0b

    

0b

   
 

2

0.871

1.098

0.354

3.403

 

0.328

0.495

0.121

2.026

 

1

0.092

2.905

0.84

10.045

 

0.857

0.883

0.226

3.453

 

0

0.181

1.855

0.75

4.589

 

0.44

0.575

0.141

2.346

 

elasticity score

         
 

2

0b

    

0b

   
 

3

0.928

1.034

0.498

2.147

 

0

9.909

2.898

33.885

 

4

0.151

3.28

0.647

16.621

 

0

66.815

10.323

432.466

 

suspicious lymph nodes

         
 

no

0b

    

0b

   
 

yes

0.969

136359.772

2.95E-253

6.30E + 262

 

0.968

225600.382

4.89E-253

1.04E + 263

  1. aThe reference category is: 0
  2. bThis parameter is set to zero because it is redundant
  3. cFloating point overflow occurred while computing this statistic. Its value is therefore set to system missing
  4. Differences were considered statistically significant at P < 0.05
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BMC Medical Imaging

ISSN: 1471-2342

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