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Table 2 Differences between 60Co and 192Ir according to physical dose to OARs (the bladder, rectum, and intestines)

From: Radiobiological and dosimetric comparison of 60Co versus 192Ir high-dose-rate intracavitary-interstitial brachytherapy for cervical cancer

OARs

Mean ± SD (Gy)

 

Mean difference

Percentage mean difference

p

 

D2cc

  
 

60Co

192Ir

   

Bladder

4.70 ± 0.29

4.81 ± 0.28

− 0.11

− 0.0229

0.000

Rectum

4.41 ± 0.68

4.49 ± 0.68

− 0.08

− 0.0178

0.000

Intestines

3.57 ± 1.12

3.66 ± 1.13

− 0.09

− 0.0246

0.000

OARs

Mean ± SD (Gy)

 

Mean difference

Percentage mean difference

p

 

D1cc

   
 

60Co

192Ir

   

Bladder

4.99 ± 0.30

5.10 ± 0.29

− 0.11

− 0.0216

0.000

Rectum

4.82 ± 0.66

4.90 ± 0.65

− 0.08

− 0.0163

0.018

Intestines

3.96 ± 1.17

4.04 ± 1.18

− 0.08

− 0.0198

0.000

OARs

Mean ± SD (Gy)

 

Mean difference

Percentage mean difference

p

 

D0.1 cc

   
 

60Co

192Ir

   

Bladder

5.67 ± 0.39

5.77 ± 0.38

− 0.10

− 0.0173

0.003

Rectum

5.71 ± 0.67

5.77 ± 0.66

− 0.06

− 0.0104

0.240

Intestines

5.01 ± 1.43

5.05 ± 1.43

− 0.04

− 0.0079

0.298