Assessing health-related quality of life in Chinese children and adolescents with cancer: validation of the DISABKIDS chronic generic module (DCGM-37)

Table 2 Floor effect, ceiling effect, and reliability for the Chinese DISABKIDS Chronic generic module

Subscales	N	Mean	SD	ICC ^a	Cronbach’s a	Split-half	%Floor	%Ceiling	N ^b	ICC ^b
Mental domain
Independence	140/140	59.1/55.7*	16.6/18.3	0.75	0.80/0.85	0.74/0.82	0/0	0/0	30/30	0.72/0.79
Emotion	138/139	56.9/53.8*	14.5/14.5	0.65	0.78/0.78	0.75/0.78	0.7/0	0/0	30/30	0.80/0.82
Social domain
Social inclusion	139/140	60.4/53.8*	14.7/17.7	0.72	0.75/0.81	0.70/0.75	0/0	0/0	30/30	0.73/0.87
Social exclusion	139/140	65.6/60.4*	13.9/14.7	0.68	0.75/0.82	0.79/0.81	0/0	0/0	30/30	0.81/0.85
Physical domain
Physical limitation	140/140	55.0/52.4	17.6/18.6	0.70	0.80/0.84	0.76/0.79	0/0	0.7/0	30/30	0.77/0.81
Treatment	139/140	56.9/55.7	16.8/18.0	0.73	0.82/0.80	0.80/0.76	0/0	1.4/0	30/30	0.71/0.86
Total score	140/140	59.0/55.3*	11.3/12.9	0.85	0.91/0.93	0.77/0.84	0/0	0/0	30/30	0.87/0.89

Data were presented as self-report / proxy-report. DISABKIDS disabled children’s quality-of-life measure, ICC Infraclass correlation coefficients, SD standard deviation. ^aICC between the child- and proxy-report scores; ^bfor test-retest reliability. * P < 0.05

ISSN: 1471-2407