Incidenze

Incidenze is the plural form of incidenza in Italian, a term used to denote frequency, rate or impact of something. The word appears in several technical and disciplinary contexts, with nuances depending on the field.

In epidemiology and public health, incidenza refers to the number of new cases of a disease or condition that develop in a defined population over a specified period. It is distinct from prevalence, which counts all existing cases at a given time. Incidenza is commonly expressed as an incidence rate (often per 1,000 or 100,000 person-years) or as cumulative incidence (a proportion over a time interval). The plural incidenze is used when discussing multiple diseases, populations, or study findings.

In mathematics and geometry, incidenza describes the relationship between objects such as points and lines (or other geometric entities) in which an incidence occurs if a point lies on a line or a vertex is incident to an edge. Here, the plural incidenze refers to the set of incidence relations within a structure like a graph or a projective plane.

In general usage, incidenza can mean impact, influence or relevance of a factor, and incidenze may be used to refer to observed instances of a phenomenon. While common in technical writing, the term incidenza is often preferred in everyday language when describing incidence rates, whereas incidenze is typically reserved for discussions involving multiple instances or contexts.