Table 2

Site and circumstances of pain severity in previous week, by walking ability*

	(a) Self-report of pain by young people								(b) Parent-report of their child's pain
	Walking ability (GMFCS)								Walking ability (GMFCS)
	All		I	II	III	IV	V	p Value	All		I	II	III	IV	V	p Value
	N	%	%	%	%	%	%		N	%	%	%	%	%	%
Site of pain (in previous week)
Headaches	423	34	39	38	36	18	19	0.004	629	30	33	40	24	31	20	0.002
Stomach	422	26	26	30	25	24	27	0.49	634	32	24	33	23	42	44	<0.001
Back	420	27	27	24	28	22	41	0.12	632	25	19	20	23	31	38	<0.001
Arms	416	18	19	20	14	12	17	0.10	630	14	9	17	13	13	22	0.020
Hips	421	14	13	12	14	18	22	0.07	635	21	9	16	17	28	44	<0.001
Legs	413	40	39	41	47	40	37	0.19	634	43	37	48	49	48	41	0.07
Operation sites	411	10	5	12	14	16	17	<0.001	624	14	5	16	21	19	21	<0.001
Circumstances of pain (in previous week)
At rest from spasms	413	13	10	13	16	20	14	0.04	632	17	8	16	16	18	35	<0.001
At rest, from splints or restraints	410	12	8	13	21	18	6	0.03	625	20	9	19	25	31	29	<0.001
On swallowing or feeding	410	3	2	3	4	4	6	0.12	627	6	4	3	1	11	11	<0.001
On moving	414	28	19	36	35	29	42	<0.001	634	35	19	35	45	52	42	<0.001
On changing or dressing	413	5	2	3	4	8	19	<0.001	627	15	4	6	12	26	38	<0.001
In bed at night	415	17	16	14	11	22	32	0.02	633	22	11	15	23	32	38	<0.001
Short unexpected pains	413	30	27	41	28	22	33	0.25	627	25	19	24	22	29	36	<0.001
Pain during therapy (in previous year)
During physiotherapy	339	45	38	42	50	62	50	0.002	505	50	40	51	46	58	60	<0.001
During other therapy	160	9	4	11	14	17	6	0.32	281	18	8	17	17	22	29	0.003
During botulinum injections	142	26	22	28	35	21	36	0.42	233	29	16	33	44	34	29	0.32

p, Significance of trend of pain over levels of walking ability, estimated using ordinal regression which retained all six categories of pain.
N, Number included: data were unavailable if Gross Motor Function Classification System (GMFCS) or severity of pain were not reported or if the young person had not received the relevant therapy.
%, Percentage with severity of pain from very mild to very severe.
*Presence of pain was defined by severity in any category from very mild to very severe.