Table 2 The demographic data and notch data of overall participants and subgroups

Number

120

120

120

120

60

60

60

60

Age (year)

29.78 ± 6.77

29.98 ± 5.94

28.94 ± 5.80

30.81 ± 6.76

28.15 ± 5.94

29.73 ± 5.58

31.4 ± 7.19

30.23 ± 6.30

Body Height (cm)

168.80 ± 8.68

168.32 ± 8.57

175.13 ± 5.32

162.00 ± 5.81

175.64 ± 4.79

174.62 ± 5.79

161.98 ± 5.84

162.02 ± 5.83

Body Weight (kg)

68.90 ± 14.77

68.26 ± 14.43

77.09 ± 12.41

60.07 ± 11.24

77.87 ± 12.14

76.31 ± 12.73

59.9 ± 11.35

60.21 ± 11.23

Time (month)^a

3.37 ± 3.23

–

–

–

3.95 ± 3.68

–

2.79 ± 2.61

–

Notch Volume (cm³)

5.96 ± 1.38

6.84 ± 1.66

7.31 ± 1.58

5.49 ± 0.94

6.75 ± 1.30

7.88 ± 1.64

5.18 ± 0.95

5.81 ± 0.82

NW (mm)

20.17 ± 2.71

21.65 ± 2.70

22.19 ± 2.44

19.62 ± 2.55

21.49 ± 2.35

22.90 ± 2.34

18.84 ± 2.40

20.41 ± 2.47

NW_in(mm)

16.89 ± 2.57

19.62 ± 3.10

19.27 ± 3.18

17.23 ± 2.79

17.83 ± 2.51

20.72 ± 3.13

15.95 ± 2.28

18.52 ± 2.67

NW_aa(mm)

20.01 ± 2.46

21.12 ± 2.50

21.38 ± 2.57

19.75 ± 2.23

20.81 ± 2.42

21.94 ± 2.62

19.21 ± 2.25

20.29 ± 2.08

NW_ou(mm)

21.21 ± 5.50

22.91 ± 3.72

22.95 ± 3.73

20.76 ± 3.06

22.03 ± 2.99

23.86 ± 4.17

19.54 ± 2.70

21.97 ± 2.95

NWI

0.2921 ± 0.0309

0.3090 ± 0.0335

0.2963 ± 0.0299

0.3048 ± 0.0360

0.2901 ± 0.0294

0.3025 ± 0.0294

0.2940 ± 0.0326

0.3156 ± 0.0363

NWI_in

0.2517 ± 0.0747

0.2804 ± 0.0408

0.2581 ± 0.0391

0.2682 ± 0.0435

0.2418 ± 0.0316

0.2744 ± 0.0393

0.2501 ± 0.0375

0.2864 ± 0.0418

NWI_aa

0.2976 ± 0.0746

0.3022 ± 0.0340

0.2865 ± 0.0313

0.3070 ± 0.0318

0.2824 ± 0.0302

0.2906 ± 0.0321

0.3005 ± 0.0305

0.3138 ± 0.0321

NWI_ou

0.3288 ± 0.0291

0.3275 ± 0.0477

0.3072 ± 0.0443

0.3226 ± 0.0441

0.2988 ± 0.0371

0.3156 ± 0.0494

0.3058 ± 0.0385

0.3393 ± 0.0433