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Journals / Acta Medica Alanya / 2023 / Cilt: 7 Sayı: 3

An Examination of the 2D:4D Ratio, Handedness and Footedness in Attention Deficit Hyperactivity Disorder

Dikkat Eksikliği ve Hiperaktivite Bozukluğu Olan Çocuk ve Ergenlerde 2d:4d Oranı, El ve Ayak Dominansının İncelenmesi

Orhan Kocaman(ALANYA ALAADDİN KEYKUBAT ÜNİVERSİTESİ)0000-0002-7504-5604
Tayfun Kara(ALANYA ALAADDİN KEYKUBAT ÜNİVERSİTESİ)0000-0002-2156-3457
Pınar Aydoğan Avşar(ALANYA ALAADDİN KEYKUBAT ÜNİVERSİTESİ EĞİTİM VE ARAŞTIRMA HASTANESİ)0000-0001-5938-3243
Tacettin Kuru(ALANYA ALAADDİN KEYKUBAT ÜNİVERSİTESİ EĞİTİM VE ARAŞTIRMA HASTANESİ)0000-0002-0313-558X
Pages
249–253
Publication Date
2023-12-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

We think that the data obtained may be of assistance to other studies assessing the phenotype characteristics of individuals with ADHD.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Aim: Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental condition more common in boys than girls, although this gender variation has yet to be explained.
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Key Findings & Data:The purpose of this study was to examine hand 2D:4D ratios and their association with ADHD.
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Conclusion & Impact:We think that the data obtained may be of assistance to other studies assessing the phenotype characteristics of individuals with ADHD.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Dikkat eksikliği hiperaktivite bozukluğu · 2D:4D Oranı · el tercihi

Abstract

Aim: Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental condition more common in boys than girls, although this gender variation has yet to be explained. The purpose of this study was to examine hand 2D:4D ratios and their association with ADHD. The study was also intended to compare hand 2D:4D ratios according to hand and foot dominance in individuals with ADHD. Methods: 168 children were included in the study, 91 diagnosed with ADHD and 77 healthy volunteers. All participants were evaluated via DSM-5 based psychiatric examinations, and their sociodemographic data were collected using forms prepared by the authors. The participants’ ADHD symptoms were assessed using the Conners’ Parent Rating Scale-Revised Short Form. 2D:4D ratios were determined by measuring the lengths of the bilateral second and fourth fingers using a digital compass. Hand and foot dominances were determined by evaluation in a clinical setting. The scores obtained were then compared. Results: Lower right and left hand 2D:4D ratios were determined in the individuals with ADHD than in the healthy controls (p=0.001 for both). No correlation was found between ADHD subscales and right or left hand 2D:4D ratios in the case group. No differences in 2D:4D ratios were also observed according to hand and foot dominances in the case group. Conclusion: This study produced important findings concerning whether hand 2D:4D ratios can be used as a marker of ADHD. We think that the data obtained may be of assistance to other studies assessing the phenotype characteristics of individuals with ADHD.

Özet

Amaç: Bu çalışmada fetal testosteron maruziyetinin göstergesi olan el 2D:4D oranları ile DEHB arasındaki ilişkinin incelenmesi amaçlanmıştır. Ayrıca DEHB olanlarda el ve ayak tercihlerine göre el 2D:4D oranlarının karşılaştırılması amaçlanmıştır. Yöntem: Çalışmaya 91 DEHB tanılı ve 77 sağlıklı gönüllü olmak üzere 168 katılımcı ergen alındı. Tüm katılımcılar DSM-5 temelli psikiyatrik muayene ile değerlendirildi ve sosyodemografik verileri araştırmacılar tarafında hazırlanan formlar ile elde edildi. Katılımcıların DEHB belirtileri Conners Anababa Dereceleme Ölçeği-Yenilenmiş Kısa Form (CADÖ-YK) ile değerlendirildi. 2D:4D oranları, her iki elin 2. ve 4. parmak uzunlukları dijital kumpas ile ölçülerek belirlendi. El ve ayak tercihleri klinik ortamda değerlendirilerek belirlendi. Elde edilen skorlar istatistiksel olarak karşılaştırıldı. Bulgular: DEHB olan bireylerde sağlıklı kontrollere göre sağ ve sol elde daha düşük 2D:4D oranları saptandı (sırasıyla p=0,001, p=0,001). Olgu grubunda DEHB alt ölçekleri ile sağ ve sol el 2D:4D oranları arasında ilişki bulunmadı (p>0.05). Olgu grubunda 2D:4D oranları ile el ve ayak tercihleri arasında fark saptanmadı (p>0.05). Sonuç: Çalışmamızda 2D:4D oranlarının DEHB de bir belirteç olarak kullanılabileceğine dair önemli sonuçlar elde edilmiştir. Elde ettiğimiz veriler gelecekte DEHB li bireylerin fenotipik özelliklerini değerlendiren diğer çalışmalara katkıda bulunabileceği kanaatindeyiz.

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Cite This Article

Kocaman, O., Kara, T., Avşar, P. A., Kuru, T. (2023). An Examination of the 2D:4D Ratio, Handedness and Footedness in Attention Deficit Hyperactivity Disorder. Acta Medica Alanya, Cilt: 7 Sayı: 3, 249–253. https://doi.org/10.30565/medalanya.1393223

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