Table 3 Univariate linear regression analysis results for all predictors in lung dose.

From: Personalized intensity modulation radiation therapy auto-planning for esophageal cancer

Lung predictor list

Mean ± SD

Range

V5

V10

V20

Dmean

[Max, Min]

p value

R2

p value

R2

p value

R2

p value

R2

PTVW [cm]

9.61 ± 2.66

20.09, 4.05

<0.001

0.174

<0.001

0.111

<0.001

0.151

<0.001

0.187

PTVWl [cm]

9.38 ± 2.41

19.08, 4.03

<0.001

0.228

<0.001

0.157

<0.001

0.199

<0.001

0.247

LungW [cm]

25.76 ± 1.47

31.31, 21.48

0.166

0.006

0.222

0.005

0.674

0.001

0.307

0.003

PTVL [cm]

20.78 ± 6.29

38.78, 7.10

<0.001

0.362

<0.001

0.232

<0.001

0.201

<0.001

0.324

PTVLl [cm]

17.38 ± 5.18

30.76, 4.17

<0.001

0.433

<0.001

0.331

<0.001

0.263

<0.001

0.398

LungL [cm]

23.49 ± 2.79

32.58, 17.39

0.053

0.013

0.183

0.006

0.194

0.006

0.131

0.007

PTVV [cm3]

507.39 ± 253.03

1706.17, 97.19

<0.001

0.298

<0.001

0.241

<0.001

0.263

<0.001

0.336

PTVVl [cm3]

420.97 ± 187.56

1207.59, 95.51

<0.001

0.522

<0.001

0.481

<0.001

0.514

<0.001

0.589

LungV [cm3]

3276.06 ± 811.73

5605.98, 1384.59

0.294

0.004

0.639

0.001

0.571

0.001

0.404

0.002

LungCropPTVV [cm3]

2643.88 ± 712.88

4443.35, 1096.72

<0.001

0.135

<0.001

0.115

<0.001

0.117

<0.001

0.141

PTVW / LungW

0.37 ± 0.10

0.75, 0.17

<0.001

0.196

<0.001

0.124

<0.001

0.161

<0.001

0.206

PTVL / LungL

0.89 ± 0.27

1.67, 0.28

<0.001

0.408

<0.001

0.284

<0.001

0.227

<0.001

0.361

PTVV/ LungV

0.17 ± 0.10

0.82, 0.03

<0.001

0.212

<0.001

0.158

<0.001

0.196

<0.001

0.237

PTVWl / LungW

0.36 ± 0.09

0.71, 0.17

<0.001

0.255

<0.001

0.176

<0.001

0.211

<0.001

0.271

PTVLl/ LungL

0.74 ± 0.21

1.02, 0.19

<0.001

0.561

<0.001

0.423

<0.001

0.341

<0.001

0.506

PTVVl/ LungV

0.14 ± 0.07

0.51, 0.03

<0.001

0.437

<0.001

0.382

<0.001

0.412

<0.001

0.484

LungCropPTVV/ LungV

0.81 ± 0.08

0.99, 0.55

<0.001

0.771

<0.001

0.784

<0.001

0.772

<0.001

0.872

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