The second to fourth digit (2D:4D) ratios in patients with Heroin Use Disorder

Canan F., Sogucak S., Karaca S., Tegin C., Gecici O., Kuloglu M.

HEROIN ADDICTION AND RELATED CLINICAL PROBLEMS, cilt.20, sa.3, ss.5-12, 2018 (SSCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 3
  • Basım Tarihi: 2018
  • Dergi Adı: HEROIN ADDICTION AND RELATED CLINICAL PROBLEMS
  • Derginin Tarandığı İndeksler: Social Sciences Citation Index (SSCI), Scopus
  • Sayfa Sayıları: ss.5-12
  • Anahtar Kelimeler: Digit ratio, heroin use disorder, impulsivity, 2D:4D, men, testosterone, SUBSTANCE-USE DISORDERS, FINGER-LENGTH RATIOS, FETAL TESTOSTERONE, DEPENDENT PATIENTS, TURKISH VERSION, ALCOHOL-USE, PERSONALITY, LATERALIZATION, ASSOCIATION, ADOLESCENTS
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Background: The ratio between the length of the second and fourth fingers (2D:4D ratio) has been linked with prenatal testosterone concentrations, but also with alcohol and tobacco misuse. Aim: We aimed to investigate any possible association between 2D:4D ratios and heroin use disorder, and whether such a relationship might be independent of impulsivity. Methods: A group of 150 men with heroin use disorder, consecutively admitted to a detoxification and therapy unit, completed the Barratt Impulsiveness Scale-version 11 (BIS-11) and had their 2D:4D ratios measured, along with a group of 266 male controls of similar age and education. Results: Men with heroin use disorder had lower 2D:4D ratios on their right hand when compared with those without heroin use disorder. Results from logistic regression indicated that 2D:4D ratios were not significant independent predictors of heroin use disorder when attentional and non-planning impulsivity were considered. Conclusions: These findings suggest that high prenatal testosterone levels, as measured indirectly by 2D:4D ratios, are not independently associated with heroin use disorder among males.