Also, the association between right and left 2d:4d were r=0.07, P<0.07 and r=-0.09, p<0.05. Height negatively correlated with both left and right of 2d:4d (r =-0.09, p<0.05, r=0.07, p<0.05). Right finger (2d:4d) of males was lower than females (0.95 ± 0.04 and 0.96 ± 0.04) and not significant (P<0.090) while the left finger (2d:4d) was higher in males (0.96 ± 0.04) than females (0.95 ± 0.04) and significant (P<0.047). Also, the stadiometer was used to measure height and weight, and all measurements were in millimeters (mm) except body weight was in kilogram (kg). Measurement was done with digital vernier caliper to measure digit lengths from the crease of the palm to the tip, where 2d was divided by 4d to give 2d:4d ratio. Sample population was four hundred and one (n=401) with 181 males and 220 females within the age of 12-18 years of urban secondary school in Ebonyi State, Nigeria.
Aim of this study was to determine the dimorphism, 2d:4d, and weight differences of Ikwo population. Finger length determination is a known predictor to health status, behaviours and obesity. This would help us to conduct the future studies even on large study population.ĭigit ratio (2d:4d) study is generating research concerns in medical sciences. This was concurrent with the other reports of the previous studies. Discussion: The outcomes of the present study were synchronous with reports of higher incidence of depression in females, nationally and globally. The proportion of Group 1 patients with high ratios (84%) was significantly more than those with than low ratios (16%) (p<0.001). Using standard cutoffs, Group 1 was divided into Low and High digit ratios. Depression scores using Beck’s Depression Inventory and digit ratios were measured in age and sex matched healthy controls (Group 2: n=30). Diagnosis of depression was done by the psychiatrist using DSM –IV criteria and depression scores were calculated by Hamilton depression rating scale (HDRS). Using digital vernier calipers 2D:4D ratio was measured. Materials and Methods: The present study was conducted in adults of age group belonging to 25-40 years with MDD (Group 1: n=30), from a tertiary care centre for Psychiatry. Objectives: The pilot study was conducted to measure 2D:4D ratios of patients with Major Depressive Disorder (MDD) and to compare it with normal (non-depressed) individuals and also to evaluate the correlation between digit ratios & depression scores.
Literature search revealed significant correlations between digit ratios and various physiological, psychological or performance traits in adulthood. It is a proxy marker of prenatal androgen exposure and is negatively correlated to prenatal androgens especially, testosterone. Introduction: Digit ratio or 2D:4D ratio is a sexually dimorphic trait.
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