Objective: Evaluate the association between AGD and the risk of PCa.
Methods: Incident case-control study, conducted on 153 patients. All patients underwent prostate biopsy for abnormal digital rectal exam and/or prostate antigen elevation. Two variants of AGD [anus to scrotum base (AGDas) and anus to dorsal insertion of penis (AGDap) were measured. Student's t-test was used to analyze continuous variables and chi-square for discrete variables. Differences in AGD (raw and adjusted) measures between cases and controls were assessed using the ANCOVA test.
Results: There is significant association between the diagnose of PCa and both AGD, patients diagnosed with PCa had both AGD measures shortened, in the crude and the full adjusted models.
Conclusions: This research suggests that the same gestational environmental exposures, could represent a weak androgen signaling and may also have an increased risk of prostate cancer.
Keywords: Fingers; digit ratio; prostate; prostatic neoplasms; sex characteristics.