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Table 3 Correlations between the predictor candidates and postoperative ODI scores

From: Identifying predictors for postoperative clinical outcome in lumbar spinal stenosis patients using smart-shoe technology

Type Predictors r p-value
Spatiotemporal measurements StdTime-P2P3-Max 0.61 0.016
  CrossCorr-P2 −0.54 0.037
  AutoCorr-P2-Mean −0.53 0.043
  SumMag-P2-Min 0.51 0.053
  MeanTime-P2P3-Mean 0.49 0.065
Clinical variables Age 0.15 0.58
  Gender 0.077 0.78
  Duration of Symptoms 0.13 0.64
  Walking ability −0.17 0.55
  Presence of scoliosis 0.31 0.26
  Smoking Status 0.41 0.13
  Acute Injury −0.14 0.62
  Previous spine surgery 0.42 0.12
  Number of affected disk −0.045 0.87
  BMI 0.36 0.18
Preoperative outcomes Preoperative VAS 0.30 0.27
  Preoperative ODI 0.35 0.21
  1. Top five spatiotemporal measurements with the largest absolute Spearman correlation coefficients (r) are listed. All clinical variables, including the functional outcomes that were collected preoperatively, are also listed