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Table 3 The SF-12v2 summary scores for the general population by gender, age, education, and chronic disease condition

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

  Physical component summary Mental component summary
  Mean (SD) Mean (SD)
Age groups   
18-24 (n = 832) 48.0 (6.7) 47.7 (13.5)
25-34 (n = 369) 47.5 (8.6) 46.1 (11.5)
35-44 (n = 654) 45.0 (9.4) 45.4 (12.0)
45-54 (n = 912) 45.0 (10.1) 44.1 (12.2)
55-64 (n = 786) 42.3 (11.6) 44.0 (12.0)
≥ 65 (n = 132) 35.5 (12.0) 43.4 (11.4)
P value** < 0.001 0.03
Gender   
Male (n = 1887) 45.0 (10.0) 46.0 (11.7)
Female (n = 1798) 39.4 (12.0) 43.2 (12.0)
P value* < 0.001 < 0.001
Educational status   
Primary (n = 895) 38.7 (12.0) 43.6 (11.6)
Secondary (n = 1882) 44.3 (10.1) 44.7 (12.2)
Higher (n = 908) 46.5 (10.2) 46.7 (11.5)
P value** < 0.001 < 0.001
Chronic disease   
No (n = 3259) 43.4 (10.8) 45.9 (11.1)
Yes (n = 416) 33.4 (11.8) 34.3 (12.4)
P value* < 0.001 < 0.001
Chronic disease (older age groups only, n = 918)   
No (n = 770) 37.0 (11.8) 45.5 (10.7)
Yes (148) 28.7 (10.0) 38.2 (12.5)
P value* < 0.001 < 0.001
  1. * Derived from t-test
  2. ** Derived from one-way analysis of variance (ANOVA)