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Table 3 Descriptive statistics and reliability of the QOL-NPC (n = 487)

From: Development and validation of quality of life scale of nasopharyngeal carcinoma patients: the QOL-NPC (version 2)

Domain

No. of items

Mean ± SD

Range of score

Cronbach’s alpha

Split-half coefficient

ICC (95 % CI)

PH

8

60.0 ± 16.9

(6.3, 100.0)

0.80

0.83

0.87 (0.85, 0.89)

PS

5

50.3 ± 15.5

(0.0, 100.0)

0.72

0.77

0.88 (0.86, 0.90)

SO

5

59.4 ± 17.2

(0.0, 100.0)

0.76

0.81

0.82 (0.78, 0.86)

SE

8

64.5 ± 17.6

(3.1, 100.0)

0.84

0.84

0.88 (0.84, 0.92)