Table 3.

Correlation analysis between stiffness parameters and blood pressure levels.

	Normal weight				Obesity				p (slope differences)
	Model	R	p	95% CI	Model	R	p	95% CI
Left common carotid artery distensibility	−8.06E − 5x + 0.012	0.428	<0.001	−1,12E − 04–−5,00E − 05	−1.10E − 4x + 0.015	0.554	<0.001	−1,49E − 04–−7,2E − 05	0.232
Right common carotid artery distensibility	−8.01E − 5x + 0.012	0.437	<0.001	−1,11E − 04–−4,9E − 05	−9.03E − 5x + 0.013	0.496	<0.001	−1,28E − 04–−5,3E − 05	0.672
Left common femoral artery distensibility	−3.47E − 5x + 0.005	0.467	<0.001	−4,80E − 05–−2,2E − 05	−2.85E − 5x + 0.005	0.518	<0.001	−4,00E − 05–−1,7E − 05	0.502
Right common femoral artery distensibility	−2.92E − 5x + 0.005	0.448	<0.001	−4,10E − 05–1,80E − 05	−2.57E − 5x + 0.004	0.399	<0.001	−4,00E − 05–−1,2E − 05	0.700
Carotid-femoral pulse wave velocity	0.029x + 2.177	0.398	<0.001	0.016–0.042	0.026x + 2.369	0.433	<0.001	0.013–0.039	0.744
Carotid-radial pulse wave velocity	0.028x + 4.318	0.318	<0.001	0.015–0.040	0.027x + 4.111	0.359	<0.001	0.011–0.035	0.756

Analysis between arterial stiffness parameters (y-axis) and systolic blood pressure levels (x-axis). CI: confidence interval. All regressions reached statistical significance (p < 0.001). There were no differences in the slopes (model comparison) between normal weight and obese children. A p < 0.05 was accepted as statistically significant.