Reliability and validity of the Japanese version of the Pediatric Quality of Life Inventory Infant Scales

Journal of Patient-Reported Outcomes

Table 2 Score distribution of the Japanese version of the PedsQL Infant Scales

	N = 145
	n	Mean	SD	Min	Max	% Floor	% Ceiling	Cronbach’s α
Infants aged 1–12 months
Physical functioning	49	89.2	20.9	25	100	0.0	58.0	0.93
Physical symptoms	49	88.6	17.3	25	100	0.0	22.0	0.88
Emotional functioning	49	86.8	16.4	27.1	100	0.0	20.0	0.93
Social functioning	50	94.8	17.6	0	100	2.0	82.0	0.98
Cognitive functioning	48	95.8	11.6	50	100	0.0	80.0	0.92
Physical health summary	49	90.6	12.6	40	100	0.0	18.0	0.93
Psychosocial health summary	49	89.9	13.9	37.5	100	0.0	2.0	0.94
Total	49	88.8	18.1	29.7	100	0.0	2.0	0.95
Infants aged 13–24 months
Physical functioning	93	90.3	17.1	16.7	100	0.0	43.2	0.92
Physical symptoms	92	89.2	18.7	15	100	0.0	39.5	0.93
Emotional functioning	92	87.2	15.3	30	100	0.0	16.0	0.91
Social functioning	91	95.2	11.6	45	100	0.0	71.6	0.91
Cognitive functioning	90	95.2	9.1	63.9	100	0.0	63.0	0.85
Physical health summary	93	89.7	17.2	17.1	100	0.0	27.2	0.96
Psychosocial health summary	92	91.2	11.2	53.3	100	0.0	14.8	0.94
Total	92	90.6	12.9	41.7	100	0.0	11.1	0.97