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Table 1 COMT genotypes related to sex, age, and education.

From: No association between chronic musculoskeletal complaints and Val158Met polymorphism in the Catechol-O-methyltransferase gene. The HUNT study

  No COMT genotyping Met/Met Met/Val Val/Val
Characteristics (n = 61,770) (n = 962) (n = 1501) (n = 554)
Sex, female (%) 53.0 53.8 52.5 55.2
Age, mean (SD) 48.9 (17.1) 53.0 (18.3) 52.9 (18.1) 52.2 (18.0)
Years of education     
   ≤ 9 (%) 36 40 42 40
   10–12 (%) 44 41 41 41
   > 12 (%) 20 19 17 19