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Table 1 Socio-demographic characteristics of the study population (n = 310)

From: Is there a relationship between self-efficacy, disability, pain and sociodemographic characteristics in chronic low back pain? A multicenter retrospective analysis

Variable   n = 310
AGE (mean (sd))   49.83 (14.35)
SEX (%) Male 120 (38.7)
Female 190 (61.3)
EDUCATION (%) Elementary school 2 (0.6)
Middle school 41 (13.3)
High school 132 (42.7)
University 134 (43.4)
Not Available 1
SMOKING (%) No 228 (73.5)
  Yes 82 (26.5)
WEIGHT [Kg] (mean (sd))   69.68 (13.42)
HEIGHT [cm] (mean (sd))   169.14 (9.40)
BMIa (mean (sd))   24.24 (3.58)
PAIN DURATION [mos] (median [IQR])   12 [6, 36]
PAIN LOCALIZATION (%) Lumbar pain 243 (78.4)
Referred pain 67 (21.6)
DRUGS (%) No 142 (45.8)
Yes (NSAIDs, pain killers, etc) 168 (54.2)
  1. aBMI Body mass index