Table 4

Current function model

Age group	Steps	Variables	Coefficient	R²	p value
5–12 years	1	Parental MHS	0.4173	0.188	<0.0001
	2	Age	−0.0120	0.050	0.0007
	3	Number of operations	−0.0055	0.131	0.0014
	4	Bladder	−0.0688	0.102	0.0001
	5	Mobility	−0.0090	0.006	0.2522
	6	Bowel function	−0.0074	0.003	0.4316
	7	Number of shunt revisions	−0.0002	0.010	0.8267
13–20 years	1	Parental MHS	0.5171	0.238	0.0003
	2	Bowel function	0.0406	0.072	0.0171
	3	Age	−0.0052	0.004	0.5447
	4	Number of operations	−0.0003	0.008	0.8484
	5	Mobility	−0.0123	0.010	0.3269
	6	Bladder	−0.0569	0.041	0.0402
	7	Number of shunt revisions	0.0008	0.008	0.4049