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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: Pediatr Transplant. 2018 Mar 25;22(5):e13166. doi: 10.1111/petr.13166

Table 2.

Strain measurements of transplant recipients compared to normal controls

Normal Controls
(N=142)
Baseline (N=63) 1 year (N=68) 3 years (N=51) 5 years (N=36)
Circumferential Strain p-value* p-value* p-value* p-value*




  Global circumferential strain −24.27 (−21.91, −28.03) −27.3 (−23.87, −30.01) 0.005 −23.64 (−19.96, −26.79) 0.241 −22.51 (−20.86, −26.87) 0.252 −24.36 (−21.41, −28.43) 0.949
  Average circumferential strain rate −1.45 (−1.25, −1.65) −1.74 (−1.47, −1.98) <0.001 −1.43 (−1.16, −1.67) 0.166 −1.43 (−1.19, −1.56) 0.160 −1.35 (−1.2, −1.61) 0.136
  Peak diastolic circumferential strain rate 1.51 (1.29, 1.71) 1.69 (1.38, 2.06) 0.002 1.55 (1.38, 1.85) 0.145 1.55 (1.29, 1.85) 0.277 1.62 (1.31, 1.82) 0.271
Longitudinal Strain
  Global longitudinal strain −19.18 (−17.31, −21.61) −14.59 (−11.11, −17.59) <0.001 −18.15 (−16.12, −21.67) 0.272 −19.44 (−16.19, −21.63) 0.825 −19.04 (−16.06, −21.57) 0.900
  Average longitudinal strain rate −1.03 (−0.9, −1.26) −0.84 (−0.7, −1.09) <0.001 −1.06 (−0.93, −1.24) 0.679 −0.95 (−0.86, −1.17) 0.062 −1.07 (−0.86, −1.29) 0.965
  Peak diastolic longitudinal strain rate 1.25 (1.05, 1.47) 0.98 (0.69, 1.24) <0.001 1.32 (1.09, 1.58) 0.209 1.39 (1.04, 1.62) 0.272 1.33 (1.12, 1.6) 0.184
*

p-values from the Wilcoxon Rank Sum test for pairwise comparison of each time point with the normal control group

Data expressed as median (25%, 75%)