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Table 3 Comparison of the SF-12 scores for the general population by gender, age and educational status

From: The Iranian version of 12-item Short Form Health Survey (SF-12): factor structure, internal consistency and construct validity

  Physical component summary Mental component summary
  Mean (SD) Mean (SD)
Gender   
Male (n = 2721) 50.9 (8.1) 47.3 (10.1)
Female (n = 2866) 49.2 (8.9) 45.3 (10.5)
P value* < 0.001 < 0.001
Age groups   
15-24 (n = 1843) 53.5 (6.3) 48.3 (9.5)
25-44 (n = 2253) 50.8 (7.5) 45.7 (10.6)
45-64 (n = 1212) 45.8 (8.8) 44.8 (10.6)
≥ 65 (n = 279) 38.1 (10.1) 44.4 (10.7)
P value* < 0.001 < 0.001
Educational status   
Primary (n = 978) 45.5 (10.3) 44.3 (10.2)
Secondary (n = 3430) 50.9 (7.9) 46.5 (10.3)
Higher (n = 1179) 51.1 (7.4) 47.4 (10.4)
P value* < 0.001 < 0.001
  1. * Derived from test for trends.