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Table 1 Reliability and coefficients of variation in hemodynamics for repeated measurements

From: Physiological aspects of the determination of comprehensive arterial inflows in the lower abdomen assessed by Doppler ultrasound

Hemodynamics variable Target artery 1st 2nd 3rd Mean CV (%) Relative reliability, SM-ICC F(2, 118, 0.05) p< 0.05
   Mean SD Mean SD Mean SD     
Blood velocity (cm/sec) Ao 26.0 6.6 26.2 6.3 26.0 7.0 4.9 0.94 0.18 ns
  LFA 8.4 2.5 8.3 2.3 8.2 2.5 7.8 0.90 0.48 ns
  RFA 8.4 2.5 8.2 2.2 8.3 2.6 8.7 0.85 1.15 ns
Vessel diameter (mm) Ao 15.5 1.3 15.6 1.2 15.5 1.2 1.3 0.95 3.63 ns
  LFA 9.0 0.7 9.1 0.7 9.0 0.7 1.4 0.94 3.09 ns
  RFA 9.1 0.8 9.1 0.7 9.0 0.8 1.2 0.97 1.35 ns
Blood flow (ml/min) Ao 2946 774 2989 740 2931 818 4.9 0.95 1.65 ns
  LFA 322 104 324 105 317 113 8.6 0.90 0.66 ns
  RFA 323 103 317 94 319 106 8.6 0.90 0.57 ns
  Ab 2301 699 2348 666 2295 721 6.2 0.94 1.87 ns
  1. Mean coefficients of variation (CV) in hemodynamics were obtained from the average CV values of 60 participants among three repeated measurements over three different days. Single-measure intra-class correlation coefficient (SM-ICC) was evaluated by three repeated measurements over three different days. All measurements were performed by a single operator. SD, standard deviation; ns, not significant; Ao, abdominal aorta; LFA, left femoral artery; RFA, right femoral artery; Ab, lower abdomen. This material is reproduced and additional data were provided for analysis from Osada et al. [12], with permission from IOP Publishing Ltd.