Skip to main content

Table 4 Prediction of self-perceived recovery by changes in psychological factors

From: Importance of psychological factors for the recovery from a first episode of acute non-specific neck pain - a longitudinal observational study

 

B (SE)

Exp B (Odds Ratio)

95 % CI Exp B

p

Model 1: psychological factors as independent variables

PGIC 1 week ( N  = 75):

Nagelkerke R2 = 0.05; AUC = 0.62 (95 % CI 0.48–0.76; p = 0.119)

 BQ4: anxiety

0.07 (0.10)

1.07

0.88–1.29

0.488

 BQ5: depression

0.16 (0.13)

1.17

0.90–1.53

0.235

 BQ6: fear avoidance

−0.06 (0.11)

0.95

0.76–1.17

0.603

 BQ7: locus of control

0.02 (0.08)

1.02

0.87–1.20

0.806

PGIC 1 month ( N  = 80):

Nagelkerke R2 = 0.71; AUC = 0.97 (95 % CI 0.94–1.00; p < 0.001)

 BQ4: anxiety

0.93 (0.31)

2.53

1.37–4.67

0.003

 BQ5: depression

0.44 (0.36)

1.56

0.77–3.15

0.218

 BQ6: fear avoidance

0.35 (0.28)

1.42

0.83–2.45

0.204

 BQ7: locus of control

0.09 (0.16)

1.09

0.79–1.50

0.598

PGIC 3 months ( N  = 75):

Nagelkerke R2 = 0.36; AUC = 0.90 (95 % CI 0.82–0.98; p < 0.001)

 BQ4: anxiety

0.30 (0.20)

1.35

0.92–1.99

0.123

 BQ5: depression

−0.17 (0.18)

0.85

0.85 0.60–1.20

0.352

 BQ6: fear avoidance

0.02 (0.15)

1.02

0.76–1.37

0.074

 BQ7: locus of control

0.23 (0.13)

1.26

0.98–1.63

0.163

Model 2: signifiant factors of model 1 and age and baseline pain as independent variables

PGIC 1 week ( N  = 77):

Nagelkerke R2 = 0.001; AUC = 0.52 (95 % CI 0.39–0.66; p = 0.763

 Age

−0.001 (0.02)

1.00

1.44–3.54

<0.001

 Pain at baseline

0.03 (0.14)

0.97

0.74–1.28

0.841

PGIC 1 month ( N  = 83):

Nagelkerke R2 = 0.57; AUC = 0.92 (95 % CI 0.85–0.99; p < 0.001)

 BQ 4: anxiety

0.81 (0.23)

2.26

1.44–3.54

<0.001

 Age

−0.01 (0.03)

1.00

0.95–1.05

0.851

 Pain at baseline

0.16 (0.21)

1.17

0.77–1.78

0.454

PGIC 3 months ( N  = 82):

Nagelkerke R2 = 0.12; AUC = 0.75 (95 % CI 0.63–0.86; p = 0.009)

 Age

−0.04 (0.02)

0.96

0.92–1.01

0.111

 Pain at baseline

−0.27 (0.19)

0.76

0.53–1.10

0.152

  1. Logistic regressions with PGIC (0 = not improved, 1 = improved) of each time point as dependent variable and the changes in the psychological factors as independent variables. Multicollinearity diagnostics model 1/model 2: Tolerance: 0.42-0.83/0.85-0.97, VIF: 1.20-2.38/1.00-1.18. Numbers in bold indicate significant results.
  2. AUC area under the receiver operating curve
  3. BQ Bournemouth questionnaire
  4. PGIC patient global impression of change