Table 1

Demographic and clinical characteristics in patients referred to spine surgery and controls
Variable Patients (n = 201) Controls (n = 138) P-value
Men/Women 113 (56) / 88 (44) 39 (28) / 99 (73) <0.0001
Age, yr 42 ± 11 42 ± 11 0.929
BMI, kg/m2 26.4 ± 4.4 23.9 ± 3.6 <0.0001
Smoking 124 (62) 49 (36) <0.0001
LTPA
 High 52 (28) 55 (40) 0.014
 Moderate 111 (59) 67 (49) 0.091
 Low 26 (13) 14 (11) 0.349
Oswestry, % 37 ± 14 2 ± 3 <0.0001
VAS, cm 5.8 ± 2.5 0.6 ± 1.0 <0.0001
Pain Duration, days 193 ± 119 7 ± 16 <0.0001
Hypertension 20 (10) 7 (5) 0.075
Diabetes 3 (1) 1 (<1) 0.462
CAD 3 (1) 2 (1) 0.671
Hypercholesterolemia 6 (3) 3 (2) 0.464
Asthma 7 (3) 7 (5) 0.324
Arthritis or Fibromyalgia 4 (2) 1 (<1) 0.329

Values are means ± SD or number of subjects (%).

BMI = body mass index, LTPA = leisure-time physical activity, Oswestry = low back pain disability index, VAS = Visual Analog Scale, CAD = coronary artery disease.

Södervall et al.

Södervall et al. BMC Musculoskeletal Disorders 2013 14:149   doi:10.1186/1471-2474-14-149

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