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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Spine J. 2014 Mar 22;14(12):2799–2810. doi: 10.1016/j.spinee.2014.03.024

Table 3.

Patient outcomes following matched vs. unmatched treatment at Week 7 and 12 months.

Group (n) PRE 0 Weeks (Mean/SE) POST 7 Weeks (Mean/SE) POST 12 Months (Mean/SE) P-Group P-Visit P-interaction
Overall Statistics → 0.20 <0.0001 0.46
Oswestry Disability Index (0-100%) Matched (69) 20.58 (1.14) 12.55 (1.14) 9.36 (1.23)
Differences (CI) 8.03 (4.84, 11.22) 3.19 (−0.12, 6.51)
Unmatched (23) 18.70 (1.98) 9.22 (1.98) 10.20 (2.12)
Differences (CI) 9.48 (3.96, 15.00) −0.98 (−6.70, 4.74)
Overall Statistics → 0.56 < 0.0001 0.12
NPRS (0-10) Matched (68) 2.76 (0.22) 1.59 (0.18) 1.79 (0.25)
Differences (CI) 1.17 (0.76, 1.59) −0.20 (−0.66, 0.25)
Unmatched (24) 2.42 (0.36) 1.42 (0.29) 1.24 (0.41)
Differences (CI) 1.00 (0.31, 1.69) 0.18 (−0.56, 0.91)
Overall Statistics → 0.73 < 0.0001 0.06
GCPS – CPI (0 - 100) Matched (69) 48.61 (1.63) 38.26 (1.84) 30.28 (2.26)
Differences (CI) 10.35 (7.88, 12.81) 7.98 (4.54, 11.42)
Unmatched (23) 45.07 (2.82) 34.01 (3.21) 34.61 (3.92)
Differences (CI) 11.06 (6.74, 15.39) −0.60 (−6.62, 5.42)
Overall Statistics → 0.27 < 0.0001 0.01
GCPS – DS (0 - 100) Matched (69) 33.71 (2.40) 26.91 (2.27) 14.26 (2.16) < 0.0001
Differences (CI) 6.80 (2.66, 10.93) 12.65 (8.35, 16.94)
Unmatched (23) 25.07 (4.13) 18.56 (3.99) 18.53 (3.75) 0.14
Differences (CI) 6.51 (−0.72, 13.75) 0.03 (−7.53, 7.59)
Overall Statistics → 0.63 0.01 0.82
FABQ-PA (0 – 24) Matched (69) 13.39 (0.51) 12.81 (0.58) 11.04 (0.70)
Differences (CI) 0.58 (−0.51, 1.66) 1.77 (0.52, 3.03)
Unmatched (24) 13.04 (0.86) 11.96 (0.99) 10.86 (1.18)
Differences (CI) 1.08 (−0.75, 2.91) 1.10 (−1.01, 3.20)
Overall Statistics → 0.59 0.01 0.42
FABQ-W (0 – 42) Matched (69) 10.69 (0.93) 9.74 (0.93) 8.29 (0.89)
Differences (CI) 0.95 (−0.36, 2.25) 1.45 (−0.13, 3.03)
Unmatched (24) 10.50 (1.57) 7.92 (1.58) 7.76 (1.49)
Differences (CI) 2.58 (0.38, 4.79) 0.16 (−2.50, 2.81)
Overall Statistics → 0.32 0.01 0.53
SF36 Physical (0 - 100) Matched (69) 46.67 (0.81) 50.51 (0.79) 50.56 (0.86)
Differences (CI) −3.83 (−6.08, −1.59) −0.05 (−2.36, 2.26)
Unmatched (24) 48.89 (1.35) 50.21 (1.35) 51.42 (1.48)
Differences (CI) −1.32 (−5.08, 2.44) −1.21 (−5.15, 2.73)
Overall Statistics → 0.69 0.75 0.87
SF36 Mental (0 - 100) Matched (69) 52.76 (1.02) 53.14 (1.00) 52.78 (1.08)
Differences (CI) 0.48 (−3.73, 4.09) −0.14 (−4.03, 3.75)
Unmatched (24) 52.57 (1.70) 53.28 (1.70) 51.42 (1.86)
Differences (CI) −0.71 (−5.44, 4.02) 1.36 (−2.88, 5.61)

NPRS: Numeric Pain Rating Scale

GCPS – CPI: Graded Chronic Pain Scale - Characteristic Pain Index

GCPS – DS: Graded Chronic Pain Scale – Disability Scale

FABQ: Fear Avoidance Behavior Questionnaire; -PA: Physical Activity subscale; -W: work subscale

SF36 Physical: Physical component summary score of the Short Form 36

SF36 Mental: Mental component summary score of the Short Form 36