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Table 1 Participant characteristics at baseline (values are mean ± SD for continuous variables and N (%) for categorical variables)

From: Predictors of low back disability in chiropractic and physical therapy settings

Characteristic

Value (n = 108)

Sociodemographic

 Age (years)a

50.4 (13.6)

 Gender

  -Male

54 (50%)

  -Female

54 (50%)

 BMI

26.8 (4.5)

 Diagnostic tests for back pain in past 3 monthsa

51 (47.2%)

 Consultation with medical specialist for back pain in the last 3 monthsa

14 (13.0%)

 Analgesics for back paina

54 (50%)

Physical profile

LBP intensity, frequency and durationa

  LBP intensity PNRS (0–10) a

5.0 (1.9)

  Always present, level of pain varies

68 (63.0%)

  Often present, with pain-free periods < 6 h

24 (22.2%)

  Other

16 (14.8%)

Functional Status

  RMQ (0–24)a

9.9 (4.4)

  PSFS (0–10)

4.2 (1.4)

Psychological status

 WAS (0–10)a

5.7 (2.1)

 PSEQ (0–60)a

44.5 (12.3)

 PCS Total (0–52)a

20.5 (11.9)

 DASS21 Total (0–63)a

15.9 (11.4)

  1. NB: BMI (Body Mass Index); PNRS (Pain Numeric Rating Scale); RMQ (Roland Morris Disability Questionnaire); PSFS (Patient Specific Functional Scale); WAS (Work Ability Score); PSEQ (Patient Self-Efficacy Questionnaire); PCS (Pain Catastrophising Scale); DASS21 (Depression Anxiety Stress 21-item Scale). Selected potential putative predictor variables were based on previously investigated factors reported in the literature as prognostic for disability and based on significance of univariate regression analysis, the selected putative predictor variables (a) were included in the multivariable models at 6 months