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Table 1 Characteristics of patients with chronic low back pain – values presented as Mean (standard deviation) or n (%)

From: 15-item Roland-Morris Disability Questionnaire (RMDQ-15): structural and criterion validity on patients with chronic low back pain

Variables

Total sample, n = 545

Online, n = 428

Face-to-face, n = 117

Age (years)

31.88 (10.35)

31.50 (10.37)

33.24 (10.20)

Sex (female)

374 (68.6%)

282 (65.9%)

92 (78.6%)

Body mass (kg)

72.19 (16.79)

73.51 (16.94)

67.34 (15.34)

Stature (m)

1.69 (0.66)

1.70 (0.74)

1.63 (0.08)

Body mass index (kg/m2)

25.85 (4.86)

26.06 (4.90)

25.08 (4.66)

Marital status

 Single

368 (67.5%)

251 (58,6%)

100%

 Married

157 (28.8%)

157 (36.7%)

0%

 Divorced

16 (2.9%)

16 (3.7%)

0%

 Widower

4 (0.7%)

4 (0.9%)

0%

Scholarity

 Elementary school

38 (7.0%)

9 (2.1%)

29 (24.8%)

 High school

337 (61.8%)

295 (68.9%)

42 (35.9%)

 Higher education

170 (31.2%)

124 (29%)

46 (39.3%)

Physical activity (yes)

296 (54.3%)

296 (69.2%)

0%

Alcohol (yes)

187 (34.3%%)

176 (41.1%)

11 (9.4%)

Smoke (yes)

9 (1.7%)

9 (2.1%)

0%

Chronicity (months)

72.77 (74.02)

72.77 (74.02)

60.85 (51.97)

Pain (NPRS, 0–10)

5.86 (2.19)

5.86 (2.19)

5.40 (2.04)

Disability (RMDQ)

 24 items (score, 0–24)

7.07 (6.17)

5.60 (5.13)

12.45 (6.69)

 15 items (score, 0–15)

3.72 (4.21)

2.64 (3.20)

7.68 (5.05)

  1. NPRS Numeric Pain Rating Scale, RMDQ Roland Morris Disability Questionnaire