BackgroundAccessory Deep Peroneal Nerve (ADPN) is an anatomic variation that can potentially cause disturbance in electrodiagnostic studies. This anomaly could be detected by nerve conduction studies. There are no recent updates about prevalence of this anatomic variation. Electrodiagnostic medicine clinic is the best environment for detecting presence and prevalence of this nerve, so present study enrolled.Materials & MethodsIn this cross sectional descriptive study that take place from March 2009 to July 2010, 230 cases comprising 460 legs referred for electrodiagnostic studies of upper limbs problems participated in the study. Compound muscle action potential (CMAP) and Nerve conduction Velocity (NCV) of Deep Peroneal Nerve (DPN) were measured by using EMG machine by stimulating DPN at knee, ankle and lateral malleolous areas accordingly, with recording from extensor digitorum brevis muscle. Results were analyzed and conclusion made.ResultsThe study population included 120 females (52%) and 110 (47%) males with mean age of 42.1 ± 13.5 years. ADPN was detected in 28 patients (12%). Among them,10(17.9%) had bilateral ADPN and in remained 18 cases (82.1%) APN was unilateral. In 8 patients there was no recorded CMAP from EDB by proximal and distal stimulation implying EDB agenesis. Gender distribution was similar which means half of the cases (14 patients) belonged to each gender.ConclusionThe prevalence of ADPN in this study was 12.2%, (17.9% bilateral and 82.1% unilateral).

questionnaires on their socio-demographic, reproductive, family and medical history, and behaviours/exposures such as dental and surgical procedures, blood transfusion, induced abortion, early sexual exposure, multiple sexual partners, anal sex, acupuncture, ear and body piercing, body tattoo and sharing needles for drug use. Results Sixteen of 1105 (1.4%, 95% CI 1.0 to 2.0%) mothers test positive for HBV infection. The most common behaviours/exposures were ear piercing (77.5%), dental procedures (51.2%), surgical procedures (21.4%), and other body piercing (12.4%). Very few reported blood transfusion (3.4%), body tattoo (3.1%), induced abortion (2.9%), multiple sexual partners (1.6%), anal sex (0.5%), drug addiction (0.4%) or needle sharing (0%). The prevalence of HBV infection were significantly higher among confirmed HBV carriers, and those with positive family history of HBV infection, and jaundice. There were no significant differences in HBV infection by ethnicity, history of surgical and dental procedures, history of blood transfusion, or any of the risk behaviours explored. Conclusion Prevalence of HBV infection was low at 1.4%. Risk behaviours were low due to under reporting or antenatal mothers are lower risk compared to the general population. We did not find any significant association between HBV infections and the explored risk behaviours.