Incidence of and risk factors for hepatitis A in Italy : public health indications from a 10-year surveillance.
This study aimed to evaluate the incidence of and risk factors for acute viral hepatitis A (HAV) in Italy.
Data were from a surveillance system for type-specific acute viral hepatitis (SEIEVA).
To estimate the association of hepatitis A cases with the potential risk factors (Odds Ratios) and the proportion of all hepatitis A cases attributable to a given risk factor (population attributable risk), hepatitis B cases were used as controls.
Independent predictors of HAV were estimated by conditional multiple logistic regression.
During the period 1985-1994,25553 viral hepatitis cases were reported.
Of these, 6408 (25%) were due to hepatitis A (HAV).
HAV incidence declined from 10/100000 in 1985 to 2/100000 in 1987.
Since 1991, however, an increase in HAV has been observed.
The majority of cases were 15-24 years old ; the incidence was higher in males and in subjects residing in southern Italy.
Only one death (0.02%) was observed.
Shellfish consumption was the most frequently reported risk factor (62%). The proportion of cases reporting personal contact with an icteric case, travel to a high-medium endemic areas, and family contact with a child attending a day-care centre (household of day-care child) was 17%, 19% and 15%, respectively.
The results of multivariate analysis showed that shellfish consumption (OR=2.6 ; 95% CI=2.4-2.9), travel to endemic areas for people residing in northern and central Italy (OR=5.4 ; 95% CI=4.6-6. (...)
Mots-clés Pascal : Hépatite virale A, Virose, Infection, Aigu, Virus hépatite A, Picornaviridae, Virus, Incidence, Facteur risque, Contamination, Alimentation, Epidémiologie, Homme, Italie, Europe, Appareil digestif pathologie, Foie pathologie
Mots-clés Pascal anglais : Viral hepatitis A, Viral disease, Infection, Acute, Hepatitis A virus, Picornaviridae, Virus, Incidence, Risk factor, Contamination, Feeding, Epidemiology, Human, Italy, Europe, Digestive diseases, Hepatic disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0264117
Code Inist : 002B30A01A2. Création : 11/06/1997.