Table 3 Comparison between male and female according to different measurements in each side

FR angle (degree)

Min.–Max.

22.50–74.35

25.30–75.80

t=0.732

0.466

Mean ± SD.

48.34 ± 11.46

46.77 ± 9.94

Median (IQR)

49.0 (39.0–54.8)

45.90 (41.1–52.3)

Min.–Max.

29.40–69.60

28.10–72.19

t=0.012

0.991

Mean ± SD.

47.56 ± 9.20

47.58 ± 9.88

Median (IQR)

48.0 (40.8–54.0)

47.20 (40.9–53.8)

t₀ (p₀)

0.457 (0.650)

0.592 (0.557)

NFFR angle (degree)

Min.–Max.

2.20–45.60

18.56–40.60

t=0.287

0.775

Mean ± SD.

28.93 ± 8.08

29.31 ± 4.90

Median (IQR)

29.30 (25.3–32.5)

29.70 (26.4–32.5)

Min.–Max.

17.60–40.40

15.20–47.50

t=0.462

0.645

Mean ± SD.

29.65 ± 5.43

29.12 ± 6.08

Median (IQR)

29.80 (25.8–33.6)

29.30 (25.6–32.4)

t₀ (p₀)

0.792 (0.432)

0.304 (0.762)

ANS FR (cm)

Min.–Max.

5.16–7.27

4.92–7.09

t=2.921^*

0.004^*

Mean ± SD.

6.36 ± 0.48

6.10 ± 0.40

Median (IQR)

6.32 (6.02–6.72)

6.13 (5.87–6.37)

Min.–Max.

4.90–7.30

4.42–6.97

t=3.259^*

0.002^*

Mean ± SD.

6.47 ± 0.56

6.15 ± 0.40

Median (IQR)

6.51 (6.24–6.83)

6.20 (5.98–6.33)

t₀ (p₀)

1.696 (0.097)

1.074 (0.288)

ONFR distance (cm)

Min.–Max.

1.33–2.34

1.22–2.07

t=2.130^*

0.036^*

Mean ± SD.

1.78 ± 0.20

1.70 ± 0.20

Median (IQR)

1.79 (1.67–1.90)

1.69 (1.57–1.80)

Min.–Max.

1.29–2.17

1.36–2.17

t=0.972

0.333

Mean ± SD.

1.77 ± 0.19

1.73 ± 0.20

Median (IQR)

1.76 (1.66–1.88)

1.71 (1.61–1.86)

t₀ (p₀)

0.796 (0.430)

1.280 (0.206)