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Table 3 Mean (standard deviation) of the validation statistics from 100 imputed datasets for 1- and 2-year post-prostatectomy score predictions

From: External validation of predictive models of sexual, urinary, bowel and hormonal function after surgery in prostate cancer subjects

 

Year

R2

CL

CS

MAE

RMSE

c-index

Bowel

1

0.21 (0.03)

2.1 (0.1)

0.84 (0.06)

6.0 (0.2)

9.7 (0.4)

0.70 (0.01)

 

2

0.19 (0.03)

3.0 (0.1)

0.75 (0.05)

6.5 (0.2)

9.9 (0.4)

0.71 (0.01)

Hormone

1

0.15 (0.03)

5.1 (0.1)

0.85 (0.06)

7.3 (0.1)

9.3 (0.3)

0.70 (0.01)

 

2

0.11 (0.03)

5.4 (0.1)

0.88 (0.06)

8.0 (0.2)

10.9 (0.6)

0.69 (0.01)

Sexual

1

0.35 (0.02)

-2.2 (0.6)

1.04 (0.04)

19.6 (0.4)

24.4 (0.4)

0.73 (0.01)

 

2

0.35 (0.02)

−2.3 (0.7)

1.08 (0.03)

20.4 (0.4)

25.5 (0.4)

0.72 (0.01)

Urinary

1

0.01 (0.01)

9.6 (0.9)

1.16 (0.13)

20.1 (0.3)

23.8 (0.3)

0.58 (0.01)

incontinence

2

0.00 (0.01)

10.1 (0.7)

0.99 (0.17)

20.4 (0.3)

23.9 (0.3)

0.57 (0.01)

Urinary irritation/

1

−0.05 (0.04)

4.0 (0.2)

0.45 (0.04)

7.8 (0.2)

10.6 (0.4)

0.62 (0.01)

obstruction

2

−0.06 (0.04)

5.0 (0.2)

0.49 (0.03)

8.2 (0.2)

11.2 (0.3)

0.65 (0.01)

  1. Abbreviations: C-index Concordance index, CL Calibration-in-the-large, CS Calibration slope, MAE Mean absolute error, RMSE Root mean squared error, SD Standard deviation