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Table 4 Comparison of preoperative and postoperative parameters in surgical group (n = 54)

From: Assessment of nasal base morphology using new proportion indices in Chinese

Index

Preoperative

Postoperative

Difference

t

P

\( \bar{x} \pm s \)

\( \bar{x} \pm s \)

\( \bar{x} \pm s \)

1 sn-prn

1.84 ± 0.22

2.10 ± 0.22

−0.26 ± 0.27

−7.04

0.000*

2 c-sn

0.84 ± 0.15

0.93 ± 0.13

−0.09 ± 0.11

−6.05

0.000*

3 all-alr

3.63 ± 0.26

3.58 ± 0.36

0.05 ± 0.29

1.22

0.229

4 inter-alar angle

91.22 ± 11.18

80.93 ± 8.01

10.28 ± 8.58

8.81

0.000*

5 inter-axial angle

74.99 ± 13.85

67.66 ± 12.69

7.33 ± 8.99

5.99

0.000*

6 sn-prn/all-alr

0.51 ± 0.55

0.59 ± 0.42

−0.08 ± 0.05

−11.65

0.000*

7 c-prn/a

0.32 ± 0.04

0.4 ± 0.04

−0.08 ± 0.05

−11.589

0.000*

8 c-sn/all-alr

0.23 ± 0.04

0.26 ± 0.05

−0.04 ± 0.04

−7.711

0.000*

  1. *P < 0.05
  2. Line unit: centimeter, Angle unit: degree