Incidence, seasonal and geographical patterns of juvenile-onset insulin-dependent diabetes mellitus in Denmark

The incidence, sex, seasonal and geographical patterns of juvenile-onset insulin-dependent diabetes mellitus (j.i.d.m.) were studied retrospectively on one third of the Danish population 1970-1974. The j.i.d.m. incidence remained fairly constant during the study period, the average being 13.2 per 10...

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Bibliographic Details
Published in:Diabetologia 1977-08, Vol.13 (4), p.281-284
Main Authors: Christau, B, Kromann, H, Andersen, O O, Christy, M, Buschard, K, Arnung, K, Kristensen, I H, Peitersen, B, Steinrud, J, Nerup, J
Format: Article
Language:English
Subjects:
Adolescent
Adult
Age Factors
Child
Child, Preschool
Denmark
Diabetes Mellitus, Type 1 - diagnosis
Diabetes Mellitus, Type 1 - drug therapy
Diabetes Mellitus, Type 1 - epidemiology
Female
Geography
Humans
Infant
Insulin - therapeutic use
Male
Seasons
Sex Factors
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Summary:The incidence, sex, seasonal and geographical patterns of juvenile-onset insulin-dependent diabetes mellitus (j.i.d.m.) were studied retrospectively on one third of the Danish population 1970-1974. The j.i.d.m. incidence remained fairly constant during the study period, the average being 13.2 per 100000 per year. The total number of boys exceeded the number of girls by 27%. A marked peak of incidence was found at 12-14 years, earlier for females than for males. A seasonal variation in onset (diagnosis) of j.i.d.m. was observed with the lowest number of new cases in May-July. The j.i.d.m. incidence seemed to show socioeconomic differences, being highest in those parts of the survey area with lower status.
ISSN:0012-186X
1432-0428
DOI:10.1007/BF01223266