PURPOSE To study the effect of smoking on the prevalence of recurrent aphthous stomatitis (RAS) and to examine whether intensity and duration of smoking influence RAS lesions. SUBJECTS AND METHODS A cross-sectional survey was conducted on a random sample of 1000 students of The University of Jordan, Amman, between May and September 2008. Sociodemographic factors and details about smoking habi...

OBJECTIVE China has about 350 million smokers, more commonly men. Using data from National Health Service Surveys conducted in 1993, 1998 and 2003, we (i) estimated trends in smoking prevalence and cessation according to sociodemographic variables and (ii) analysed cessation rates, quitting intentions, reasons for quitting and reasons for relapsing. METHODS Data were collected from approximat...

To study exposure to environmental tobacco smoke during the first year of life, 220 infants attending the outpatient paediatric clinic of the University of Jordan for routine visits with their mothers were recruited to the study. Mothers completed a questionnaire about smoking habits of household members, and urine samples were obtained from infants for analysis of cotinine levels. A total of 6...

background: the role of retinoblastoma (rb) protein in cell cycle regulation prompted us to take up this study with the aim of assessing its role in the progression of oral cancer and to correlate with various clinicopathological parameters, including habits such as smoking, paan chewing, and alcoholism. materials and methods: this observational study included surgical specimens from 10 apparen...

background: this article was to present the sampling and measurements methods and the main preliminary findings of the kercadr cohort study (first round) in an urban and peri-urban setting, kerman, southeastern iran2009-11. method: 5900 (3238 female) people aged between 15 to 75 years were recruited in the household survey by non-proportional to size one-stage cluster sampling. trained internal...