Table 1 Sex comparison of assessment results of different indicators among Chinese adolescents aged 13–18 years old.

From: The association between weight-adjusted waist index and physical fitness index among Chinese adolescents

 

Boys

Girls

t / Z-value

P-value

Total

N

4637

4567

  

9204

Age

15.50 ± 1.70

15.50 ± 1.71

-0.037

0.970

15.50 ± 1.70

Weight

60.60 ± 13.34

51.89 ± 8.97

36.66

< 0.001

56.28 ± 12.19

Waist circumference

72.61 ± 11.61

66.65 ± 9.5

26.945

< 0.001

69.65 ± 11.03

WWI

9.39 ± 1.16

9.29 ± 1.13

4.138

< 0.001

9.34 ± 1.14

Grip strength

36.99 ± 9.87

25.81 ± 6.28

64.685

< 0.001

31.44 ± 10.00

Standing long jump

209.25 ± 29.84

166.92 ± 21.14

78.418

< 0.001

188.25 ± 33.44

Sit-up

24.75 ± 7.02

21.25 ± 6.35

25.14

< 0.001

23.01 ± 6.92

Sit and reach

38.03 ± 11.78

39.35 ± 11.65

− 5.373

< 0.001

38.69 ± 11.73

VO max

41.25 ± 5.75

37.47 ± 4.89

33.879

< 0.001

39.37 ± 5.67

50 m dash

7.87 ± 1.01

9.22 ± 1.13

− 60.565

< 0.001

8.54 ± 1.26

PFI [P50(P25, P75)]

− 0.01(-1.72,1.63)

− 0.03(-1.57,1.45)

− 0.567

0.571

-0.02(-1.62,1.55)