background elimination of suicide attempts is impossible, but they can be reduced dramatically by an organized planning. the present study aimed to survey the suicide trends in fars province (iran), during 2004-2009 to better understand the prevalence and status of suicide.   methods this survey was a cross-sectional study. the demographic data were collected from the civil status registry betw...

background and purpose: prematurity birth occurs when a newborn is born before the thirty seventh week of pregnancy. preterm birth is the most expensive and the most common health problem. so, the aim of this study was to do epidemiological survey of prematurity in gonbad-e kavous in 2010. materials and methods: this sectional- descriptive study was carried out on 172 premature babies with cens...

a wide range of population, 4% to 30%, suffers from tinnitus that is defined as perception of sound without apparent acoustic stimulus. we conducted the present study to determine the prevalence of tinnitus in iranian population; tehran province. this cross-sectional study was conducted from january 2009 to december 2009, recruiting 3207 individuals (age range, 7-98) who were residing in tehran...

background: tobacco smoking is the leading cause of preventable mortality. the prevalence of smoking in adolescents in high schools ranges from 23.5% to 41%, respectively. in colombia, these figures are similar and students entering the university are exposed to initiate smoking. the purpose of this study was to establish the determinants associated with the initiation of tobacco smoking among ...