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Table 5 Clarke’s angle, Sztriter-Godunov index and Wejsflog index levels in various age groups

From: Characteristics of paediatric foot arches according to body mass among primary school students in Wrocław, Poland

Variables

7 year olds

8 year olds

9 year olds

10 year olds

p-value

Mean ± SD

Min.-Max

Mean ± SD

Min.-Max

Mean ± SD

Min.-Max

Mean ± SD

Min.-Max

CL angle – L foot

43.59 ± 11.23

8–66

47.43 ± 10.22

9–76

46.03 ± 9.08

5–74

46.99 ± 9.66

15–69

0.120

CL angle – R foot

42.07 ± 11.04

9–60

47.43 ± 9.32

4–73

47.29 ± 7.99

19–76

49.55 ± 7.96

27–69

p < 0.050

K-y index – L foot

0.39 ± 0.23

0- 0.94

0.40 ± 0.20

0–1

0.39 ± 0.20

0–1

.40 ± .21

0–1

0.709

K-y index – R foot

0.40 ± 0.23

0- 0.80

0.40 ± 0.18

0–1

0.39 ± 0.19

0–1

.40 ± .19

0–1

0.919

W index – L foot

2.81 ± 0.19

2.54–3.18

2.77 ± 0.16

2.32–3.23

2.78 ± 0.16

2.30–3.20

2.79 ± 0.16

2.35–3.15

0.735

W index – R foot

2.81 ± 0.19

2.45–3.20

2.78 ± 0.16

2.31–3.17

2.78 ± 0.15

2.31–3.20

2.79 ± 0.16

2.45–3.19

0.722

  1. Abbreviations: CL angle Clarke’s angle, K-y index Sztriter-Godunov index, W index Wejsflog index, SD Standard deviation, Min. Minimum value, Max. Maximum value, Me Median, Q1 Lower quartile, Q3 Upper quartile, L Left, R Right
  2. *Significant p-values (< 0.05) are in bold