Background and Objective: Injection Drug Users (IDUs) include more than 69.9% of known HIV/AIDS cases in Iran. The most important causes of HIV among them are syringe sharing and high risk behaviours such as sexual practice with different partners. Since IDUs are hard to reach and there is little information about them, this behavioural survey conducted to explore Zanjan district’s injection drug users in relation to HIV/AIDS.
Materials and Methods: In this descriptive-cross sectional study, 61 IDUs, inhabitants of Zanjan, were selected in non-random sampling by referring to the most probable sites and places of their presence. Data was collected using a standard Family Health Behavioral Surveillance Survey (BSS) questionnaire designed especially for IDUs.
Results: Mean duration of non injected and injected drug use was 12.1±5 and 4.5±3.5 years respectively, and age of the first injection was 24±5.4 years. The most frequently injected drug was Heroin (96.7%) and the most non-injected one was Cannabis (85.2). 55.7% of IDUs injected 4 or more times per day, and 32.8% reported needle sharing. 100% of the subjects knew the role of used syringe in HIV transmitting. 44.3% had taken an HIV test, and 70.4% knew about their HIV status.
Conclusion: The early age of starting drug injection, needle sharing, coverage of voluntary HIV testing in less than 25%, and unawareness of 1/3 of them about their HIV test status indicate the significance of priority and service delivery to this most high risk group.

Background and Objective: Percutaneous endoscopic gastrostomy (PEG) is the technique of choice for providing enteral access to patients who require long-term enteral nutrition. This study was performed to evaluate the outcomes and complications of PEG.
Materials and Methods: In this semi-experimental study, 77 patients (45 men, 32 women; age mean: 58.9±19.7 years, Min: 14 years, Max: 89 Years) who underwent initial PEG placement in Vali-e-asr hospital, Zanjan-Iran, from 2014 to 2015 were included. The complications were assessed three weeks and three months after PEG insertion. The quality of life (QoL) was evaluated with Karnofsky questionnaire before PEG placement and three months after that.
Results: The most common indications of PEG placement were cerebrovascular accidents (26.5%), cardio-pulmonary disease (20.6%), and drug and substance abuse toxicities (16.2%). Complications occurred in 26.5% (18 cases) of the patients. The frequencies of the complications at end of the third week and third month were 17.6% and 11.8%, respectively. The most common complication was tube leakage. Also, no significant difference was found between mean of QoL scores pre- and post- PEG placements (p> 0.05).
Conclusion: Percutaneous endoscopic gastrostomy is a safe and minimally invasive endoscopic procedure associated with a low morbidity rate.