Table 4 Different joint cartilages thickness (0.1 mm) categized into four quartiles by weight, height or BMI, SD: standard deviation (Group 1: less than 25 growth percentile, Group 2: 25 to 50 growth percentile, Group 3: 50 to 75 growth percentile, Group 4: more than 75 growth percentile)

Height

Group 1 (N = 22)

Group 2 (N = 19)

Group 3 (N = 27)

Group 4 (N = 46)

p-value

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Knee

37.1 ± 4.9

37.9 ± 4.1

38.3 ± 4.9

37.2 ± 6.2

0.371

Ankle

14.0 ± 3.1

14.4 ± 3.2

13.3 ± 3.1

13.8 ± 3.8

0.781

Wrist

12.1 ± 2.3

12.6 ± 2.2

11.8 ± 2.4

12.2 ± 2.9

0.923

MCP

8.9 ± 2.4

8.6 ± 1.9

8.0 ± 1.6

8.3 ± 2.1

0.774

PIP

5.7 ± 1.2

6.4 ± 1.9

5.9 ± 1.4

5.8 ± 1.5

0.523

BMI

Group 1 (N = 20)

Group 2 (N = 20)

Group 3 (N = 23)

Group 4 (N = 51)

p-value

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Knee

38.2 ± 4.7

37.7 ± 4.6

39.8 ± 4.3

36.3 ± 5.9

0.435

Ankle

13.9 ± 2.8

14.1 ± 2.8

14.1 ± 3.5

13.6 ± 3.8

0.055

Wrist

11.4 ± 2.1

12.2 ± 2.1

13.3 ± 3.3

12.0 ± 2.4

0.871

MCP

8.6 ± 1.9

8.5 ± 2.0

8.7 ± 2.5

8.1 ± 1.9

0.100

PIP

5.6 ± 1.3

5.9 ± 1.9

6.3 ± 1.1

5.8 ± 1.6

0.545

Weight

Group 1 (N = 24)

Group 2 (N = 20)

Group 3 (N = 26)

Group 4 (N = 44)

p-value

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Knee

38.4 ± 5.1

37.3 ± 4.2

38.8 ± 4.0

36.5 ± 6.4

0.775

Ankle

13.6 ± 3.0

14.7 ± 2.6

13.8 ± 3.3

13.6 ± 3.9

0.299

Wrist

11.8 ± 2.3

12.2 ± 2.1

12.4 ± 3.1

12.2 ± 2.6

0.323

MCP

8.8 ± 2.3

8.8 ± 2.1

8.3 ± 1.8

8.0 ± 1.9

0.882

PIP

5.7 ± 1.2

6.2 ± 1.9

5.9 ± 1.1

5.9 ± 1.6

0.276

Height

Group 1 (N = 13)

Group 2 (N = 20)

Group 3 (N = 24)

Group 4 (N = 29)

p-value

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Knee

33.1 ± 5.0

33.3 ± 4.4

34.3 ± 56.79

33.3 ± 6.2

0.050

Ankle

12.4 ± 4.1

11.8 ± 2.3

12.4 ± 30.77

12.6 ± 4.0

0.882

Wrist

11.0 ± 2.0

11.8 ± 3.2

11.1 ± 34.84

11.1 ± 2.2

0.698

MCP

7.1 ± 1.6

8.1 ± 3.6

6.9 ± 16.05

7.2 ± 1.8

0.774

PIP

4.9 ± 1.0

6.0 ± 1.8

4.9 ± 11.39

5.8 ± 1.8

0.369

BMI

Group 1 (N = 23)

Group 2 (N = 19)

Group 3 (N = 18)

Group 4 (N = 26)

p-value

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Knee

34.2 ± 5.7

33.5 ± 5.0

32.4 ± 4.1

33.9 ± 6.4

0.903

Ankle

12.7 ± 2.9

11.2 ± 2.4

12.1 ± 4.0

13.0 ± 3.9

0.746

Wrist

11.2 ± 2.4

11.1 ± 2.1

11.3 ± 2.8

11.4 ± 3.6

0.891

MCP

8.0 ± 3.1

7.1 ± 1.6

7.3 ± 2.2

6.9 ± 1.7

0.987

PIP

5.4 ± 2.0

5.7 ± 1.7

5.5 ± 1.3

5.3 ± 1.4

0.356

Weight

Group 1 (N = 12)

Group 2 (N = 25)

Group 3 (N = 21)

Group 4 (N = 28)

p-value

Mean ± SD

Mean ± SD

Mean ± SD

Mean ± SD

Knee

34.3 ± 4.2

33.0 ± 5.8

34.7 ± 4.8

33.0 ± 6.1

0.820

Ankle

12.0 ± 2.5

12.6 ± 3.7

12.0 ± 2.6

12.5 ± 4.0

0.645

Wrist

11.6 ± 2.2

11.0 ± 2.1

11.4 ± 3.0

11.2 ± 3.4

0.659

MCP

8.3 ± 4.1

7.0 ± 1.2

7.5 ± 2.4

7.0 ± 1.8

0.959

PIP

5.2 ± 1.7

5.4 ± 1.3

5.7 ± 1.9

5.5 ± 1.6

0.340