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Table 1 Demographic characteristics of the study sample (n = 3685)

From: The 12-item medical outcomes study short form health survey version 2.0 (SF-12v2): a population-based validation study from Tehran, Iran

   Number (%)
Age groups (year)   
  18-24 832 (22.6)
  25-34 369 (10.0)
  35-44 654 (17.7)
  45-54 912 (24.7)
  55-64 786 (21.4)
  ≥ 65 132 (3.6)
  Mean (SD) 35.6 (14.7)
Gender   
  Male 1887(51.0)
  Female 1798(49.0)
Marital status   
  Single 1039(28.2)
  Married 2011(54.5)
  Widowed/divorced 635(17.3)
Educational status   
  Primary 895 (24.3)
  Secondary 1882 (51.1)
  Higher 908 (24.6)
Employment status   
  Employed 1622 (44.0)
  Housewife 888 (24.1)
  Student 796 (21.6)
  Unemployed 182 (5.0)
  Retired 197 (5.3)