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. Author manuscript; available in PMC: 2018 Apr 1.
Published in final edited form as: J Hypertens. 2017 Oct;35(10):2025–2033. doi: 10.1097/HJH.0000000000001424

Table 5. Linear mixed model analysis of the parameters describing Pr and Px.

Prmax - Pd mmHg Tr ms Pxmax mmHg Tx ms IPx mmHg s
Intercept 52.1 (47.8,56.3) 308 (297,318) 20.1 (16.6,23.5) 144 (125,163) 4.91 (3.91,5.90)
Slope -0.68 (-1.01,0.34) -6 (-7,-5) 4.09 (3.64,4.54) -3 (-7,1) 0.70 (0.61,0.80)
Fractional slope -1.3% 1.9% 20.4% -2.1% 14.3%
ICC 0.978 0.962 0.964 0.914 0.972

Intercept – the intercept of the linear mixed model for the 5 aortic sites for all patients, Slope – the beta coefficient of the linear mixed model, % slope – 100 x slope/intercept, ICC – the intraclass correlation coefficient. Prmax – maximum of Pr, Tr – time to Prmax, IPr – the integral of (Pr – Pd) over the cardiac period, Pxmax – maximum of Px, Tx – time to Pxmax, IPx – integral of Px over the cardiac period. The intercept and slope are given as mean (95% confidence interval).