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Table 2 Multivariate analysis of overall predictors of back related dysfunction (Roland score)

From: Characteristics of patients with chronic back pain who benefit from acupuncture

  

Roland score*

  

8-week

52-week

Variable

Categories

β ** (SE)

P-value

β ** (SE)

P-value

Baseline Roland score

Continuous

0.43 (0.05)

<.0001

0.56 (0.05)

<.0001

Baseline bothersomeness score

Continuous

0.10 (0.10)

0.30

0.001 (0.10)

0.99

Any disability

Yes vs. No

0.78 (0.46)

0.09

0.01 (0.49)

0.99

SF-36 Mental Health score

Continuous

-0.02 (0.01)

0.17

-0.01 (0.01)

0.58

Age

Continuous

-0.01 (0.02)

0.51

0.02 (0.02)

0.33

Gender

Female vs. Male

0.42 (0.41)

0.32

0.37 (0.44)

0.39

Education level

College graduate, Yes vs. No

-0.19 (0.42)

0.65

-0.81 (0.44)

0.07

Employment

Heavy lifting job vs. Unemployed

-0.16 (0.70)

0.81

-1.76 (0.74)

0.16

 

Light/Medium lifting job vs. Unemployed

-0.53 (0.57)

 

-1.22 (0.60)

 
 

Sedentary job vs. Unemployed

-0.61 (0.59)

 

-0.86 (0.63)

 
 

Employment unknown vs. Unemployed

-1.07 (1.84)

 

-0.93 (1.90)

 

Medication use

Narcotics vs. None

0.43 (0.69)

0.81

1.77 (0.73)

0.04

 

Other vs. None

0.02 (0.43)

 

0.12 (0.46)

 

Self-efficacy

High vs. Low

0.61 (0.93)

0.51

-0.20 (1.00)

0.84

Expectation of acup. help

Top tertile vs. Lower two tertiles

-0.58 (0.47)

0.42

-0.23 (0.50)

0.55

 

Could not rate vs. Lower two tertiles

-0.44 (0.53)

 

0.45 (0.56)

 

Duration of chronic LBP

>= 1 y vs. <1 y

0.24 (0.45)

0.60

0.49 (0.48)

0.30

Pain travels below knee

Yes vs. No

-0.02 (0.51)

0.98

-0.37 (0.54)

0.50

Days of LBP in last 3 mo

Continuous

0.02 (0.01)

0.10

0.01 (0.01)

0.46

Intense LBP treatment

Yes vs. No

1.20 (0.63)

0.06

0.51 (0.66)

0.44

Treatment group

Individualized acupuncture vs. Usual care

-2.38 (0.56)

<.0001

-2.21 (0.59)

0.001

 

Standardized acupuncture vs. Usual care

-2.44 (0.55)

 

-1.81 (0.58)

 
 

Simulated acupuncture vs. Usual care

-2.86 (0.55)

 

-1.03 (0.58)

 
  1. * For ease of identification, all independent variables with P < 0.5 are in boldface type
  2. ** The parameter estimates β refer to the amount of change in the outcome that is based on a one unit change in that covariate (continuous variables) or a change in category (categorical variables)