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2019 | 73(3) | 6-10
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Gender-related incidence, risk factors exposure and survival rates of laryngeal cancers – the 10-years analysis of trends from one institution

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Objectives: The aim of the study was the analysis of the epidemiology of laryngeal cancer over 10 years in relation to known risk factors and to assess the current survival rates in this group of patients. Methods: The data were retrospectively collected from patients’ medical records, then entered in the database using dedicated software and a statistical analysis was performed. Results: 512 subjects - 443 men (86.5%) and 69 women (13.5%) were enrolled into the study. The male-to-female ratio was 6.4:1. There were 97.1% smoking women and 98% smoking men, however the history of more than 20 cigarettes per day smoking admitted 81.1 % of women and 94.6% of men. Heavy alcohol consumption was the case in 14 (20.3%) women and in 307 (69.3%) men. For both the size of heavy alcohol consumption and the size of excessive tobacco use, there was found statistically significant difference between women and men with laryngeal cancer (p<0.05). In the majority of male and female subjects, the tumour was located in the supraglottis/glottis area. Apparently this tumour location was much more common among women, accounting for 60.9% of cases , while in men was confirmed in 39.3% of cases. The stages of the laryngeal cancer were similarly of high advancement for both the men and women - stages III and IV were confirmed in 82.6% of women and in 77.6% of men. The over 5-year survival rate was 39.1% among women and 37.2% among men. Conclusions Contradictory to decreased exposure to risk factors and the shorter period for diagnosis, the higher stages of cancer were observed in women. Although in women the advancement was higher and the majority of cases were located in unfavourable supraglottic area, the survival rates were higher. Key words: laryngeal cancer, epidemiology, men and women, risk factors
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