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Table 3 Primary outcome measure—Low back pain intensity

From: Multidisciplinary integrative care versus chiropractic care for low back pain: a randomized clinical trial

  Treatment group Group difference P value*
Chiropractic care Integrated care Chiropractic care minus integrated care
Low back pain intensity [0 to 10; 0 = no LBP, 10 = the worst LBP possible]
 Mean at baseline (SD) 5.4 (1.5) 5.1 (1.6)   
 Mean at week 4 (95%CI) 4.5 (4.1 to 4.9) 4.0 (3.7 to 4.4) 0.42 (−0.02 to 0.86) 0.07
 Mean at week 12 (95%CI) 3.1 (2.7 to 3.4) 2.7 (2.4 to 3.1) 0.37 (−0.12 to 0.85) 0.14
Short term response summary (area under the curve minus baseline through week 12)    0.41 (−0.02 to 0.85) 0.06
 Mean at week 26 (95%CI) 3.8 (3.4 to 4.2) 3.4 (3 to 3.7) 0.45 (−0.13 to 1.04) 0.13
 Mean at week 52 (95%CI) 3.7 (3.3 to 4) 3.0 (2.7 to 3.4) 0.62 (0.04 to 1.21) 0.04
Long term response summary (area under the curve minus baseline through week 52)    0.46 (0.07 to 0.86) 0.02
  1. Mean values adjusted for baseline
  2. *Long term response summary serves as the omnibus test p-value. If p > .05, p-values for short term response summary and individual time points are not computed