Skip to main content

Advertisement

Table 2 Patient characteristics at baseline

From: Fat in the lumbar multifidus muscles - predictive value and change following disc prosthesis surgery and multidisciplinary rehabilitation in patients with chronic low back pain and degenerative disc: 2-year follow-up of a randomized trial

  Predictor analysis (n = 147) Analysis of change in fat infiltration (n = 126)
Age (mean (SD)) 41.0 (7.2) 41.6 (7.1)
Gender (women (n %)) 77 (52.4) 65 (51.6)
BMI (mean (SD)) 25.3 (3.2) 25.4 (3.2)
Current smoker (n % yes) 66 (44.9) 58 (46.0)
Previous back surgery (n % yes)a 44 (29.9) 37 (29.4)
Work status b (n % working) 31 (21.1) 25 (19.8)
Duration of back pain, years (mean (SD)) 6.3 (5.9) 6.5 (6.1)
Daily consumption of opioids (n % yes) 34 (23.1) 30 (23.8)
ODI score, 0-100c (mean (SD)) 42.3 (9.0) 41.8 (8.4)
EQ-5D index, -0.59–1d (mean (SD)) 0.28 (0.30) 0.28 (0.30)
HSCL-25, 1-4c (mean (SD)) 1.80 (0.51) 1.81 (0.50)
FABQ-physical, 0-24c (mean (SD)) 13.2 (5.6) 13.3 (5.4)
FABQ-work, 0-42c (mean (SD)) 26.5 (10.6) 26.0 (10.4)
Back Pain, 0-100c (mean (SD)) 70.0 (14.9) 69.4 (15.0)
Leg Pain, 0-100c (mean (SD)) 44.5 (26.8) 47.0 (25.7)
  1. BMI body mass index (weight in kilograms divided by height in meters squared), ODI Oswestry Disability Index, EQ-5D = EuroQol-5 Dimensions, HSCL-25 Hopkins Symptom Checklist, FABQ Fear Avoidance Beliefs Questionnaire
  2. aThere were no differences in fat infiltration between patients with/without previous back surgery
  3. bWorking versus not working; including part-time work as working
  4. cLower scores indicate less severe symptoms
  5. dHigher scores indicate better quality of life