Table 2.

The FPI range which refer to foot posture categories were collated for each year of age

Age (years)	No/age (years)	FPI-6 total score—foot posture category cut-offs
		Supinated	Normal	Pronated	High pronated	Mean FPI	SD	Range
3	21	2	4	14	1	6.38	3.03	11
4	20	1	5	12	2	6.7	2.60	11
5	55	5	34	13	3	4.15	2.81	12
6	388	29	213	132	14	4.45	2.80	15
7	536	51	296	164	25	4.3	2.93	16
8	473	48	271	131	23	4.01	2.95	16
9	625	74	362	175	14	3.82	2.77	16
10	497	62	291	123	21	3.69	2.86	15
11	377	50	194	119	14	4.24	3.02	16
12	144	24	65	48	7	4.22	3.23	14
13	33	1	17	12	3	5.18	2.98	10
14	22	4	12	6	0	3.14	3.40	12
15	26	3	12	11	0	4.19	3.31	12
Total	3217	354 (11%)	1776 (55.2%)	960 (29.84%)	127 (3.95%)	4.2	3	16

The median FPI total score across the study population was 4 (3) points, with the trend of reduced FPI with increased age confirmed.

FPI, foot posture index.