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Table 4 Summary of socio-economic outcomes in both groups measured at different time intervals

From: Preoperative exercise in patients undergoing total knee arthroplasty: a pilot randomized controlled trial

Measure IG CG p Ratio IG: CG
Mean / Min-Max Mean / Min-Max   
Preoperative pain level (NRS) 4.27 / 0–8 4.53 / 0–8 0.524 1: 1.06
Change of pain level (NRS) from baseline to preoperative assessment 1.5 / 0–8 0.38 / 0–4 0.189 4: 1
Preoperative MET 982.4 / 0–3033 438.2 / 0–4181 0.035* 1.7: 1
Postoperative medication (number of months) 1.9 / 1–3 2.4 / 1–3 0.150 0.79: 1
Pre- and rehabilitation costs per patient (CHF) 5272.8 6704.4 0.730 0.79: 1
  1. Abbreviations: IG Intervention Group, CG Control Group, NRS Numeric Rating Scale, MET Metabolic Equivalent, SD Standard deviation
  2. Values given as Mean (SD) or range = Min-Max
  3. p = Independent t-test
  4. *significant p < 0.05