. 2021 Aug;10(8):2044–2051. doi: 10.21037/tp-21-282

Table 2. Comparison of the CTI and STI between PE and Non-PE groups.

	PE group (n=371)	Non-PE group (n=351)	P value^a
CTI	4.13±1.18	2.26±0.37	<0.001*
STI	1.83±0.18	1.40±0.13	<0.001*

Presented as mean ± standard deviation (range). *, statistically significant (P<0.05). ^a, independent samples t-test. CTI, computed tomography index; PE, pectus excavatum; STI, surface topography index.