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Table 3 Descriptive statistics and reliability of the QOL-RTI/H&N ( n= 238)

From: Translation and validation of the Chinese version of the quality of life radiation therapy instrument and the head & neck module (QOL-RTI/H&N)

Domain No. of items Range of score Mean ± SD a^ Split-half coefficient ICC(95% CI) Item-own domain correlation Item-other domain correlation
Function 9 (0.6, 10.0) 6.50 ± 1.83 0.77 0.72 0.82(0.70, 0.89) 0.50 ~ 0.71 0.02 ~ 0.44
Emotion 7 (1.7, 10.0) 6.22 ± 1.38 0.49 0.53 0.90(0.84, 0.94) 0.44 ~ 0.64 0.086 ~ 0.41
Family 6 (4.0, 10.0) 6.83 ± 1.24 0.41 0.43 0.80(0.67, 0.88) 0.42 ~ 0.65 0.04 ~ 0.32
General 3 (1.7, 10.0) 6.97 ± 1.70 0.71 0.68 0.88(0.79, 0.93) 0.79 ~ 0.83 0.11 ~ 0.55
Pain 2 (0.0, 10.0) 7.18 ± 2.93 0.77 0.77 0.87(0.78, 0.92) 0.89 ~ 0.91 0.17 ~ 0.44
Swallow 5 (1.2, 10.0) 6.90 ± 1.91 0.67 0.65 0.93(0.88, 0.96) 0.50 ~ 0.73 0.02 ~ 0.44
Saliva 3 (0.0, 10.0) 3.93 ± 2.82 0.74 0.70 0.89(0.82, 0.94) 0.79 ~ 0.84 0.08 ~ 0.41
Appearance 1 (0.0, 10.0) 6.71 ± 3.16 NA NA 0.87(0.75, 0.93) 1.000 0.14 ~ 0.40
Speech 1 (0.0, 10.0) 7.78 ± 2.83 NA NA 0.89(0.80, 0.94) 1.000 0.06 ~ 0.15
Taste 1 (0.0, 10.0) 6.00 ± 3.53 NA NA 0.94(0.89, 0.96) 1.000 0.08 ~ 0.41
Cough 1 (0.0, 10.0) 7.65 ± 2.75 NA NA 0.87(0.76, 0.93) 1.000 0.15 ~ 0.42
  1. a^ Cronbach's alpha value. NA meant no value, due to one single item.