. Author manuscript; available in PMC: 2015 Mar 1.

Published in final edited form as: J Perinat Med. 2014 Mar;42(2):159–169. doi: 10.1515/jpm-2013-0277

Table 5.

Correlation between strain estimations obtained in the different cervical regions and cervical length.

Variable	Correlation	95% Confidence intervals		p value
Internal Endocervical	−0.24	−0.37	−0.10	<0.001
Internal Complete	−0.22	−0.36	−0.08	0.002
Sagittal Endocervical	−0.13	−0.27	0.01	0.08
Sagittal Complete	−0.07	−0.21	0.07	0.34
External Endocervical	−0.03	−0.17	0.12	0.69
External Complete	−0.06	−0.20	0.09	0.43