Skip to main content

Table 1 Patient characteristics before radiotherapy

From: Impact of body-mass factors on setup displacement in patients with head and neck cancer treated with radiotherapy using daily on-line image guidance

Age (y)

 

Median (range)

53 (30–77)

Body weight (kilogram)

 

Mean (range)

66.9 (41–90.3)

Median

65

Body height (cm)

 

Mean (range)

166.2 (153–177)

Median

167.2

BMI

 

Mean (range)

24.1 (17.5-29.1)

Median

23.8

ECOG performance status

 

0

17

1-2

13

CCRT/RT alone (number)

 

CCRT

28

RT alone

2

Tumor origin (number)

 

Nasopharynx

21

Oropharynx

8

Hypopharynx

1

Circumference Al (cm)

 

Mean ± SD (range)

55.2 ± 3.7 (48.1-62.9)

Thickness A (cm)

 

Mean ± SD (range)

16.3 ± 1.3 (14.2-17.9)

Circumference B (cm)

 

Mean ± SD (range)

48.4 ± 3.8 (42.2-57.2)

Thickness B (cm)

 

Mean ± SD (range)

14.5 ± 1.5 (11.8-18.4)

Circumference C (cm)

 

Mean ± SD (range)

41.9 ± 4.5 (33.7-50.6)

Thickness C (cm)

 

Mean ± SD (range)

13.6 ± 1.8 (11.0-17.6)

  1. Abbreviation: BMI = body mass index; ECOG = Eastern Cooperation Oncology Group; CCRT = concurrent chemoradiotherapy; SD = standard deviation.
  2. Note: Level A was labeled on the mastoid tip, the same section as the junction between the skull base and the 1st cervical vertebra. Level B was based on the mandible angle, the same height as the junction between the 2nd to the 3rd cervical vertebrae. Level C was drawn from the thyroid notch, the same as the 5th cervical vertebra.