[ XXXX trends in Norway--has the decline stopped?].

@entity1 @entity281 @entity378 @entity1907
The aim of the study was to present the trend as regards @entity378 in Norway since 1950, on the basis of data on incidence and mortality in the total population and @entity281 rate among pupils leaving primary school. The decline in incidence continued until the late 1980s. While the decline was 11% per year during the period 1950-74, it has been slower in recent years. In 1990-92 the incidence level was somewhat higher than in 1989, but figures for 1993-94 indicate a new decline. Mortality declined more slowly after the mid-1970s; a similar trend is found for prevalence of @entity281 among pupils. The incidence is among the lowest in Europe. The proportion of cases among immigrants increased gradually from 4% in 1977 to 40% in 1993. Among the Norwegian-born population the incidence rate of @entity1907 has shown a steady decline, also during the last decades. Norwegian-born cases are mainly elderly @entity1 infected many decades ago. @entity281 is probably rare, and the proportion of infected @entity1 is gradually declining.
