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Table 1 Socio-demographics and health characteristics for all patients

From: Patients with severe low back pain exhibit a low level of physical activity before lumbar fusion surgery: a cross-sectional study

  Sample
n = 118
Women
n = 63
Men
n = 55
Age, mean (SD) 45.7 (8.3) 45.0 (8.6) 46.5 (8.1)
Body Mass Index, mean (SD) 26.3 (3.7) 25.5 (4.0) 27.3 (3.1)
Smokingb, frequency (%) 8 (6.8%) 4 (6.3%) 4 (7.4%)
Educationb, frequency (%)
 Elementary school 7 (6.0%) 2 (3.2%) 5 (9.1%)
 High school 51 (43.6%) 26 (41.3%) 25 (45.4%)
 University 42 (35.9%) 28 (44.4%) 14 (25.9%)
 Vocational education 17 (14.5%) 7 (11.1%) 10 (18.2%)
Sick leavea, frequency (%)
 No sick leave 75 (64.7%) 35 (56.5%) 40 (74.1%)
 Full-time 23 (19.8%) 14 (22.6%) 9 (16.7%)
 Part-time 16 (13.8%) 11 (17.7%) 5 (9.3%)
 Other disease 2 (1.7%) 2 (3.2%) 0 (0.0%)
Previous lumbar disc surgery for radiculopathy, frequency (%) 11 (9.3%) 7 (11.1%) 4 (7.3%)
  1. an = 116
  2. bn = 117; values correspond to mean (SD) or frequency (percent)