RESUMEN

In Croatia, malaria was eradicated in 1964 and has since been imported, ten cases a year in average, mostly by Croatian migrant workers, seafarers in particular. About 80 % of registered cases were infected in Africa and the main reason for infection was negligence in the use of chemoprophylaxis. The aim of the study was to establish the incidence of malaria among Croatian seafarers from 2004 to 2014, how many of them took chemoprophylaxis properly, and whether malaria was acknowledged as occupational disease. To get our answers we analysed epidemiological surveys of the Croatian Institute of Public Health completed by patients and reviewed epidemiological bulletins and the national Register of Occupational Diseases. Over the investigated period, a total of 102 people fell ill with malaria, of whom 25 were seafarers. Seventeen did not take chemoprophylaxis at all and eight took them without following instructions. In addition, none of them had malaria recognised as occupational disease under Croatian law, nor is there any information that they exercised their rights in any other way. All this clearly points out that seafarers and their employers need to be informed much better about the benefits of preventive measures and their labour rights.

Asunto(s)

Malaria , Enfermedades Profesionales , Quimioprevención , Croacia/epidemiología , Humanos , Incidencia , Malaria/tratamiento farmacológico , Malaria/epidemiología , Malaria/prevención & control

RESUMEN

BACKGROUND: Colorectal polyps (CP) are common among individuals older than 50 years. Some polyp types can precede colorectal cancer (CRC). This study aimed at describing histopathological characteristics of colorectal polyps in relation to age and gender among symptomatic patients referred for a colonoscopy examination during 2011-2014 in Tirana, Albania. METHODS: Study population included 267 individuals aged ≥ 20 years and diagnosed with ≥ 1 polyp during a colonoscopy examination. A total of 346 polyps were identified, excised and measured, and underwent histopathological examination. RESULTS: Adenomas accounted for 79.8% of all polyps and tubular type was the most frequent one (74.4%). The majority of polyps (42.5%) were small (<1 cm), 38.7% of a medium size (1-2 cm) and 18.8% large (>2 cm). Adenomas were larger than non-adenomatous polyps (p<0.01) There was no gender difference with regard to patient age (p=0.22) or polyp size (p=0.84) Adenomas were more frequent among men compared to women (p=0.02). Age was strongly related to polyp characteristics. The proportion of adenomas increased significantly with age (p<0.01). Within adenomas, the proportion of villous types - a precursor of colorectal cancer - increased remarkably with age (p=0.01). Older age was positively associated with potentially malignant adenomas (defined as adenomas > 1 cm and showing high-grade dysplasia) (p<0.01). CONCLUSION: Adenomas accounted for the majority of polyps. Their morphology, size and malignant potential were related to patient age.