background and aims. the aim of the present cross-sectional study was to evaluate the effect of smoking on gingival recession in smoking and non-smoking young adults. materials and methods. the subjects consisted of 158 adults (75 males and 83 females), including 85 smokers and 73 non-smokers, with an age range of 18-33 years. all the subjects were clinically examined and answered questions reg...

BACKGROUND Little is known about racial/ethnic and socioeconomic variations in the duration of smoking. The goal of this research was to examine these variations. METHODS Data came from the 2003, 2006 and 2007 Tobacco Use Supplement of the Current Population Survey. The analysis was limited to ever-smokers (n = 117,168). The outcome was number of years of daily smoking. Survival analysis was ...

Few studies examine nativity disparities in smoking in the U.S., thus a major gap remains in understanding whether immigrant Latinos' smoking prevalence is stable, converging, or diverging, compared with U.S.-born Latinos. This study aimed to disentangle the roles of period changes, duration of U.S. residence, and immigrant arrival cohort in explaining the gap in smoking prevalence between fore...

background laryngeal cancer though accounts for only 1.5% of all malignant neoplasm. scientific evidence has shown that cancers of the oral cavity, larynx, lung and esophagus are associated with cigar smoking. the present study is to examine by case-control method the impact of smoking on laryngeal cancer. material and methods one hundred and six hospitalized cases of otolaryngology department ...