Assessment of nasal base morphology using new proportion indices in Chinese

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Table 3 Comparison between control group (n = 101) and postoperative parameters in surgical group (n = 54)

Index	Control group	Postoperative	t	P
Index	\( \bar{x} \pm s \)	\( \bar{x} \pm s \)	t	P
1 sn-prn	1.93 ± 0.20	2.10 ± 0.22	−4.785	0.000*
2 c-sn	0.90 ± 0.13	0.93 ± 0.13	−1.207	0.229
3 all-alr	3.74 ± 0.37	3.58 ± 0.36	2.627	0.009*
4 inter-alar angle	89.66 ± 8.53	80.93 ± 8.01	6.194	0.000*
5 inter-axial angle	78.09 ± 11.39	67.66 ± 12.69	5.217	0.000*
6 sn-prn/all-alr	0.52 ± 0.07	0.59 ± 0.42	−6.729	0.000*
7 c-prn/a	0.33 ± 0.05	0.4 ± 0.04	−9.896	0.000*
8 c-sn/all-alr	0.25 ± 0.05	0.26 ± 0.05	−2.495	0.014*