Measurement properties and responsiveness of the EQ-5D-Y-5L compared to the EQ-5D-Y-3L in children and adolescents receiving acute orthopaedic care

Table 2 Ceiling and floor effect for the EQ-5D-Y-3L and EQ-5D-Y-5L

	EQ-5D-Y-3L		EQ-5D-Y-5L		Chi-square (p value)	Absolute reduction (%)	Relative reduction (%)
	n	%	n	%	Chi-square (p value)	Absolute reduction (%)	Relative reduction (%)
Ceiling effect
11111	5	6	4	5	0.03 (p = 1.00)	1	20
MOB	14	17	9	11	1.26 (p = 0.37)	6	36
LAM	51	61	49	59	0.10 (p = 0.88)	2	4
UA	12	14	12	14	0.00 (p = 1.00)	0	0
P/D	41	49	36	43	0.61 (p = 0.54)	6	12
WSU	49	59	46	55	0.22 (p = 0.75)	4	6
Floor effect
55555/33333	2	2	1	1	0.05 (p = 1.00)	1	50
MOB	48	58	50	60	0.10 (p = 0.88)	− 2	− 4
LAM	11	13	11	13	0.00 (p = 1.00)	0	0
UA	48	58	48	58	0.00 (p = 1.00)	0	0
P/D	8	10	3	4	2.43 (p = 0.21)	6	63
WSU	7	8	2	2	0.13 (p = 0.17)	6	71

N = 83, MOB, Mobility; LAM, Looking After Myself; UA, doing Usual Activities; P/D, having Pain or Discomfort; WSU, feeling Worried, Sad or Unhappy

ISSN: 1477-7525