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Table 3 The package of overall treatment time (POTT), interval between operation and post-operation radiotherapy (IBOR) and overall treatment time of radiation therapy (OTTRT) at the Far Eastern Memorial Hospital (FEMH) compared with selected published series

From: Image-guided intensity modulated radiotherapy with helical tomotherapy for postoperative treatment of high-risk oral cavity cancer

Selected published studies

Factors

Percentage

Locoregional control

Disease-free survival

Overall survival

   

(%)

2-year

3-year

5-year

2-year

3-year

5-year

2-year

3-year

5-year

University of Texas M. D. Anderson Cancer Center, USA [6]

POTT

<11 wks

64.2%

81%

78%

76%

   

64%

58%

48%

  

>13 wks

10%

38%

38%

38%

   

25%

25%

25%

 

IBOR

≤6 wks

54.7%

78%

78%

75%

   

68%

58%

48%

  

>6 wks

45.3%

58%

50%

48%

   

50%

32%

25%

VU University Medical Center, Netherlands [7]

POTT

<11 wks

12%

 

86%

       
  

>13 wks

45%

 

71%

       
 

OTTRT

≤7 wks

31%

90-82%

85-75%

 

78-58%

72-49%

 

82-65%

74-55%

 
  

>8 wks

16%

56%

51%

 

42%

38%

 

53%

50%

 

University of Florida, USA [20]

POTT

≤101 days

63%

70%

70%

70%

      
  

>101 days

17%

50%

40%

30%

      
 

IBOR

≤51 days

57%

72%

72%

72%

      
  

>51 days

17%

56%

50%

40%

      

University of Florida College of Medicine, USA [22]

POTT

<100 days

 

60%

        
  

>100 days

 

14%

        

University of Texas M. D. Anderson Cancer Center, USA [2]

IBOR

≤6 wks

 

77%

        
  

>6 wks

 

64%

        

University Hospital, Avda, Spain [21]

POTT

≤150 days

   

77%

      
  

>150 days

   

63%

      
 

IBOR

≤ 50 days

   

83%

      
  

>50days

   

68%

      
 

OTTRT

≤ 60 days

   

75%

      
  

>60 days

   

68%

      

FEMH, Taiwan

POTT

≤11 wks

42.1%

92%

  

84%

  

94%

  
  

>13 wks

21.1%

         
 

IBOR

≤6 wks

84.2%

         
  

>6 wks

15.8%

         
 

OTTRT

≤ 7 wks

78.9%

         
  

> 8 wks

5.2%

         
  1. Abbreviation:
  2. POTT = Package of overall treatment time; IBOR = Interval between operation and post-operation radiotherapy; OTTRT = Overall treatment time of radiation.