background : nasopharyngeal carcinoma (npc) is known as a highly distinct kind of head and neck cancer. this distinction is due to its clinical presentation, epidemiology, outcome, and treatment. there have not been any reports of epidemiological analysis of npc in iran. the aim of this study is to evaluate the incidence rates and trends of nasopharyngeal carcinoma in the iranian population dur...

this study aimed to estimate the rate of pressure ulcers in intensive care units (icus) and medical and surgical wards of iranian hospitals and compare the performance of methods of medical record review as well as direct observation for their detection.the research team visited 308 patients in medical and surgical wards of hospitals affiliated with tehran university of medical sciences and a f...

background: we examined epidemiological aspects of dynamic changes in incidence of ovarian cancer in women of kazakh and russian nationalities in kazakhstan. methods: the material of investigation was primary data on registered patients with malignant ovarian tumors in the whole country. the study was conducted during the period of 1999-2009. evaluation of changes in ovarian cancer incidence in...

esophageal cancer is the second most common malignancy in iranian men; it is the third in women. it is killing about 5800 iranians each year. squamous cell carcinoma (scc) is presently the most common type of esophageal cancer accounting for about 90% of all esophageal cancers in iran. recent studies in iran have shown that there is a gradual increase in the incidence of adenocarcinoma of the d...

background: there is a variation in trends of oral cancers all over the world. many studies have reported evidence of increasing incidence in oral cancers during recent years. the purpose of this study was to investigate time trends and changes in demographic distribution of oral cancers incidence in isfahan during 1991-2010. materials and methods: in this retrospective analytic study, we colle...

background: needlestick injuries (nsis) are among the most important occupational injuries for health care workers (hcws). in iran, the problem of exposure to contaminated blood among nursing personnels has not well documented. the aim of this study was to determine the incidence of needlestick injuries in population of nurses in shahroud imam hossein hospital, northern iran. methods: a self-ad...

cancer registration is an important source for measuring the burden of cancer in a population. in practice, however, quite frequently incorrect patients are registered or data items can be inaccurately recorded or not recorded at all. also the process or quality of these registrations varies among countries. in this paper, we briefly discussed some statistical techniques including; mortality an...

introduction: pharyngocutaneous fistula (pcf) is the most common complication after total laryngectomy. its incidence is extremely variable, with values ranging from 3% and 65%. the management of this problem considerably increases the length and the cost of hospitalization.  the aim of this study is to analyze the incidence, predisposing factors, and outcome of pcf in patients undergoing total...

introduction: cleft lip and palate are among the most common congenital anomalies worldwide. this study was conducted in order to explore the incidence and related factors of cleft lip and/or palate (cl/p) among live births in mashhad, north-eastern iran.   materials and methods: in this cross-sectional study, records of 28,519 infants born between march 1982 and march 2011 at three major hospi...

background: animal bites considered as one of the issues and problems of public health that potentially has the risk of rabies disease. this study was conducted to determine the epidemiology of animal bite in aq qala city during the years1998-2009. methods: in this descriptive cross-sectional study, 13142 cases of animal bite recorded in aq qala city rabies treatment center selected by census m...