TABLE 2

WAPI BPND and SBRdyn Correlation for 8 Different Time Windows

Time window (min)r2Linear regression equation (WAPI BPND – SBRdyn)Difference between outcome measures in Bland–Altman plots (mean ± SD)Bland–Altman plot slope (WAPI BPND – SBRdyn)
SBR I (16.5–42)0.98y = 0.85x + 0.210.13 ± 0.290.15
SBR II (42–66)0.97y = 1.47x + 0.03−1.06 ± 0.80−0.40
SBR III (66–90)0.90y = 1.60x + 0.33−1.08 ± 1.18−0.52
SBR IV (10.5–19.5)0.91y = 0.44x + 0.161.25 ± 0.880.81
SBR V (19.5–30)0.97y = 0.74x + 0.250.36 ± 0.430.29
SBR VI (30–42)0.99y = 1.13x + 0.21−0.52 ± 0.32−0.14
SBR VII (13.5–36)0.97y = 0.70x + 0.210.50 ± 0.480.34
SBR VIII (13.5–42)0.98y = 0.78x + 0.190.31 ± 0.370.23
  • r2 = linear regression equation, difference between outcome measures in Bland–Altman plots and slope of Bland–Altman plots.