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Table 2 Results of multiple linear regression models investigating impact of ICBG complications on mental and physical health and disability

From: Prospective evaluation of chronic pain associated with posterior autologous iliac crest bone graft harvest and its effect on postoperative outcome

Outcome Variable Parameter Estimate Standard Error t statistic Pr > |t| R2
SF-36 Mental Component Score
N = 142*
age 0.05233 0.08391 0.62 0.5339 0.270
  COMPENSATION 3.65895 2.74025 1.34 0.1840  
  ICBG Complications -1.32793 1.12835 -1.18 0.2413  
  VAS Pain at Surgical Site -0.14489 0.04534 -3.20 0.0017  
  VAS Pain at extremities -0.09867 0.04355 -2.27 0.0251  
SF-36 Physical Component Score
N = 143
age -0.15777 0.06213 -2.54 0.0122 0.396
  COMPENSATION 1.67623 2.02666 0.83 0.4096  
  ICBG Complications -1.54756 0.83678 -1.85 0.0666  
  VAS Pain at Surgical Site -0.13996 0.03366 -4.16 < .0001  
  VAS Pain at extremities -0.11407 0.03229 -3.53 0.0006  
Oswestry Disability Index
N = 140
age 0.00008492 0.09885 0.00 0.9993 0.598
  COMPENSATION -7.66128 3.21902 -2.38 0.0187  
  ICBG Complications 3.45739 1.34204 2.58 0.0111  
  VAS Pain at Surgical Site 0.29556 0.05390 5.48 < .0001  
  VAS Pain at extremities 0.27288 0.05095 5.36 < .0001