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Table 6 Univariate logistic regression analysis of potential predictors at baseline, at 1 week and at 1 month for improvement at 3 months in acute and chronic patients

From: Predictors of outcome in neck pain patients undergoing chiropractic care: comparison of acute and chronic patients

Predictor variable Acute (N = 197) Chronic (N = 185)
  Unadjusted OR (95% CI) p-value Unadjusted OR (95% CI) p-value
Gender (male) 1.31 (0.60-2.85) 0.50 0.63 (0.33 to 1.23) 0.18
*Age (higher) 0.98 (0.96 to 1.01) 0.29 1.00 (0.98 to 1.02) 0.99
Dizziness present 1.40 (0.42 to 4.65) 0.58 1.06 (0.42 to 2.67) 0.90
Radiculopathy present 0.89 (0.31 to 2.54) 0.82 1.34 (0.46 to 3.89) 0.59
Trauma 0.87 (0.36 to 2.12) 0.76 0.78 (0.34 to 1.82) 0.56
Previous episodes category (higher) 0.65 (0.30 to 1.39) 0.27 1.41 (0.71 to 2.78) 0.33
Taking medication 0.65 (0.30 to 1.39) 0.27 0.89 (0.4 to 1.82) 0.75
Paid employment 1.30 (0.45 to 3.75) 0.63 0.61 (0.28 to 1.34) 0.22
Smoke 1.88 (0.62 to 5.72) 0.27 0.96 (0.45 to 2.08) 0.93
In good health 1.42 (0.63 to 3.18) 0.40 0.74 (0.39 to 1.42) 0.37
*BQ Pain 0.98 (0.82 to 1.15) 0.77 1.00 (0.87 to 1.15) 0.98
*BQ Disability 1.10 (0.96 to 1.26) 0.18 1.05 (0.92 to 1.219) 0.49
*BQ Social disability 1.13 (0.99 to 1.28) 0.06 1.09 (0.97 to 1.22) 0.16
*BQ Anxiety 1.02 (0.89 to 1.17) 0.76 1.12 (0.99 to 1.26) 0.08
*BQ Depression 0.91 (0.81 to 1.02) 0.11 0.97 (0.88 to 1.08) 0.63
*BQ Fear avoidance beliefs 1.14 (0.99 to 1.30) 0.07 1.02 (0.91 to 1.14) 0.70
*BQ Locus of control 1.02 (0.89 to 1.17) 0.77 1.03 (0.91 to 1.15) 0.66
*BQ Total 1.01 (0.98 to 1.04) 0.47 1.01 (0.99 to 1.04) 0.37
*NRS Neck 1.09 (0.91 to 1.30) 0.36 1.02 (0.89 to 1.18) 0.73
*NRS Arm 0.90 (0.79 to 1.02) 0.09 1.901 (0.89 to 1.14) 0.93
PGIC @ 1 week 3.61 (1.47 to 8.89) 0.005 3.37 (1.42 to 8.00) 0.006
*Baseline: 1 Week BQ Pain Change Score 1.13 (0.96 to 1.32) 0.15 1.06 (0.91 to 1.24) 0.43
*Baseline: 1 Week BQ Disability Change Score 1.05 (0.91 to 1.21) 0.49 0.98 (0.85 to 1.13) 0.79
*Baseline:1 Week BQ Social Disability Change Score 1.06 (0.92 to 1.22) 0.42 0.99 (0.87 to 1.12) 0.83
*Baseline: 1 Week BQ Anxiety Change Score 1.06 (0.92 to 1.23) 0.42 1.12 (0.98 to 1.27) 0.11
*Baseline: 1 Week BQ Depression Change Score 0.89 (0.77 to 1.04) 0.14 1.09 (0.95 to 1.24) 0.21
*Baseline: 1 Week BQ Fear avoidance beliefs Change Score 1.20 (1.02 to 1.40) 0.026 0.98 (0.87 to 1.12) 0.81
*Baseline: 1 Week BQ Locus of control Change Score 1.06 (0.95 to 1.19) 0.29 1.00 (0.90 to 1.12) 0.96
*Baseline: 1 Week BQ Total Change Score 1.02 (0.99 to 1.05) 0.24 1.01 (0.98 to 1.05) 0.38
*Baseline: 1 Week NRS Neck Change Score 1.25 (1.04 to 1.51) 0.02 1.10 (0.87 to 1.17) 0.94
*Baseline: 1 Week NRS Arm Change Score 0.94 (0.79 to 1.12) 0.48 1.03 (0.87 to 1.22) 0.72
PGIC @ 1 Month 3.94 (1.47 to 10.60) 0.007 5.82 (2.83 to 11.97) 0.001
*Baseline: 1 Month BQ Pain Change Score 1.30 (1.11 to 1.52) 0.001 1.22 (1.06 to 1.41) 0.006
*Baseline: 1 Month BQ Disability Change Score 1.41 (1.18 to 1.68) 0.001 1.15 (1.02 to 1.30) 0.02
*Baseline:1 Month BQ Social Disability Change Score 1.44 (1.22 to 1.71) 0.001 1.06 (0.95 to 1.18) 0.33
*Baseline: 1 Month BQ Anxiety Change Score 1.26 (1.09 to 1.46) 0.001 1.16 (1.04 to 1.30) 0.008
*Baseline: 1 Month BQ Depression Change Score 1.15 (0.99 to 1.33) 0.08 1.05 (0.94 to 1.19) 0.40
*Baseline: 1 Month BQ Fear avoidance beliefs Change Score 1.33 (1.14 to 1.55) 0.001 1.04 (0.94 to 1.14) 0.49
*Baseline: 1 Month BQ Locus of control Change Score 1.36 (1.16 to 1.60) 0.001 1.18 (1.07 to 1.30) 0.001
*Baseline: 1 Month BQ Total Change Score 1.08 (1.04 to 1.11) 0.001 1.03 (1.01 to 1.06) 0.004
*Baseline: 1 Month NRS Neck Change Score 1.30 (1.10 to 1.54) 0.002 1.18 (1.03 to 1.36) 0.02
*Baseline: 1 Month NRS Arm Change Score 1.10 (0.93 to 1.31) 0.26 1.12 (0.94 to 1.33) 0.22
  1. *Continuous variables. BQ = Bournemouth Questionnaire. NRS = Numerical rating scale. OR = odds ratio (95% Confidence intervals). N = Number of observations. PGIC = Patient global impression of change.