Table 4.

Correlation coefficients among the US variables in the 36 DRA patients

Findings	Coefficient	95%CI	p value
SWS (m/s) versus IRD
RA	0.574	0.318, 0.772	< 0.001
EO	0.125	− 0.180, 0.390	0.233
IO	0.589	0.334, 0.772	< 0.001
TrA	0.453	0.227, 0.679	0.003
Muscle thickness versus IRD
RA	− 0.076	− 0.387, 0.215	0.330
EO	− 0.287	− 0.617, 0.078	0.089
IO	0.135	− 0.121, 0.398	0.216
TrA	0.021	− 0.222, 0.313	0.451

US ultrasound, SWS shear wave speed, IRD inter-rectus distance, RA rectus abdominis, EO external oblique, IO internal oblique, TrA transversus abdominis