1. When the number of cases diagnosed in each age group in 1988 was compared with the mean number of cases diagnosed in 1973-4, there seemed to be a significantly higher proportion of cases in children under the age of 5 years diagnosed in 1988 (25%, 404/1600) than in 1973-4 (19%, 202/1056). Log linear regression was then used to study the incidence rates in each age group rather than the crude numbers for the two studies (table III): a significant year effect (X2= 5.45, p<005) and a significant age trend (x2=4 95, p<0 05) were found. There was, however, no interaction between these two factors, showing that the same slope for age was applicable in both 1973-4 and 1988 (X2=0-28) not significant). The same statistical results were applicable when the data were divided by sex
2. Prevalence and ten-year (1970-1979) incidence of insulin-dependent diabetes mellitus in children and adolescents in Finland;Reunanen, A.; Akerblom, H.K.; Kaar, M.-L.;Acta PaediatrScand,1982
3. Epidemiologic survey of juvenileonset insulin dependent diabetes mellitus (IDDM) in Hokkaido, Japan, 1973-1981;Matsuura, N.; Fukushima, N.; Fukita, H.;TohokuJExp Med,1983
4. Register of newly diagnosed diabetic children. BM3',1975
5. Epidemiology of type I (insulindependent) diabetes in Scotland 1968-76: evidence of an increasing incidence;Patterson, C.C.; Thorogood, M.; Smith, P.G.;Diabetologia,1983