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Table 1 Demographic and clinical characteristics of the studied population

From: Translation of the Neck Disability Index and validation of the Greek version in a sample of neck pain patients

  Mean SD
Age (years) 62,3 14,6
  Frequency %
Sex/Female 36 55.4
Male 29 44.6
Education/Illiterate 6 9.4
Elementary 36 56.3
High school 8 12.5
Lyceum 7 10.9
Higher ed. 5 7.8
University 2 3.1
Duration of last episode/Acute (1–7 days) 42 65.6
Sub-acute (7 days-7 weeks) 11 17.2
Chronic (>7 weeks) 11 17.2
Previous episodes/None 5 12.5
1–10 14 35.0
>10 21 52.5
Trauma/Yes 4 6.3
No 60 93.8
Neck surgery/Yes 1 1.5
No 64 98.5
Co-morbidity/Yes 53 82.8
No 11 17.2