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Table 6 Univariate and multivariate linear regression results

From: Ultrasonic evaluation of muscle functional recovery following free functioning gracilis transfer, a preliminary study

  Univariate Multivariate1
Parameters B2 P B P
Muscle strength
 CR1 4.70 (3.49–5.91) < 0.001 4.61 (3.37–5.84) < 0.001
 CR2 3.35 (1.24–5.45) 0.003 3.47 (1.35–5.59) 0.002
Relation between CR1 and CR2
 CR1 > CR2 ref ref
 CR1 ≤ CR2 − 0.80 (− 1.36 to 0.24) 0.006 − 0.80 (− 1.39 to 0.21) 0.010
 MBR 1.30 (− 0.90 to 3.51) 0.239 1.50 (-0.75–3.74) 0.183
ROM
 CR1 152.31 (118.49–186.13) < 0.001 150.44 (115.59–185.29) < 0.001
 CR2 117.16 (55.06–179.27) < 0.001 122.02 (59.24–184.79) < 0.001
Relation between CR1 and CR2
 CR1 > CR2 ref ref
 CR1 ≤ CR2 − 26.93 (− 43.73 to 10.14) 0.003 − 27.34 (− 45.41 to 9.27) 0.004
 MBR 3.26 (− 66.37 to 72.90) 0.925 7.87 (− 64.01 to 79.74) 0.825
  1. CR contraction ratio, MBR muscle bulk ratio, ROM range of motion
  2. CR1 was the post-transplant CR value, while CR2 was the pre- transplant CR value
  3. 1 Multivariate results were adjusted with patient’s age and gender
  4. 2 B stands for regression coefficient