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Table 1 Patient, tumor and treatment features

From: Interstitial high-dose rate brachytherapy as boost for anal canal cancer

Items

N/Median

Interval/%

Age (years)

60

[34 - 83]

Sex ratio (F/M)

3

 

VIH Positive

2

7.1

Tumor stage

  

T1

5

17.9

T2

20

71.4

T3

2

7.1

T4

1

3.6

Lymph node status

  

N0

25

89.3

N1

2

7.1

N2

1

3.6

Histologic type

  

SCC

25

89.3

ADC

3

10.7

EBRT

  

Chemotherapy

20

71.4

Inguinal irradiation

20

71.4

Total dose (Gy)

45

[43.2 - 52]

HDR BT

  

d/f (Gy)

4

[3 - 5]

# of fractions

3

[2 - 6]

Total dose (Gy)

12

[10 - 15]

# of needles

4

[4 - 7]

TI EBRT/BT (days)

20

[4 - 63]

OTT (days)

63

[38 - 74]

  1. SCC: squamous cell carcinoma; ADC: adenocarcinoma; EBRT: external beam radiation therapy; HDR BT: high-dose rate brachytherapy; d/f: dose per fraction; TI EBRT/BT: time interval between external beam radiation therapy and brachytherapy; OTT: overall treatment time.