Summary
A nationwide study of childhood Type 1 (insulin-dependent) diabetes mellitus was established in 1986 in Finland, the country with the highest incidence of this disease worldwide. The aim of the project called “Childhood Diabetes in Finland” is to evaluate the role of genetic, environmental and immunological factors and particularly the interaction between genetic and environmental factors in the development of Type 1 diabetes. From September 1986 to April 1989, 801 families with a newly-diagnosed child aged 14 years or younger at the time of diagnosis were invited to participate in this study. The vast majority of the families agreed to participate in the comprehensive investigations of the study. HLA genotypes and haplotypes were determined in 757 families (95%). Our study also incorporates a prospective family study among non-diabetic siblings aged 3–19 years, and two case-control studies among the youngonset cases of Type 1 diabetes. During 1987–1989, the overall incidence of Type 1 diabetes was about 35.2 per 100,000 per year. It was higher in boys (38.4) than in girls (32.2). There was no clear geographic variation in incidence among the 12 provinces of Finland. Of the 1,014 cases during these 3 years only six cases were diagnosed before their first birthday. The incidence was high already in the age group 1–4-years old: 33.2 in boys and 29.5 in girls. Of the 801 families 90 (11.2%) were multiple case families, of which 66 had a parent with Type 1 diabetes at the time of diagnosis of the proband. The prevalence of Type 1 diabetes in the parents of these newly-diagnosed diabetic children was higher in fathers (5.7%) than in mothers (2.6%).
References
Reunanen A, Åkerblom HK, Käär ML (1982) Prevalence and ten-year (1970–1979) incidence of insulin-dependent diabetes in children and adolescents in Finland. Acta Paediatr Scand 71: 839–849
Christau B, Åkerblom H, Joner G, Dahlqvist G, Ludvigsson J, Nerup J (1981) Incidence of childhood insulin-dependent diabetes mellitus in Denmark, Finland, Norway and Sweden. A workshop report. Acta Endocrinologica 98 [Suppl 245]: 68–80
LaPorte RE, Tajima N, Åkerblom HK et al. (1985) Geographic differences in the risk of insulin-dependent diabetes mellitus: the importance of registries. Diab Care 8 [Suppl 1]: 101–107
Diabetes Epidemiology Research International Group (1988) Geographic patterns of childhood insulin-dependent diabetes mellitus. Diabetes 37: 1113–1119
Rewers M, LaPorte RE, King H, Tuomilehto J (on behalf of the DERI Study Group) (1988) Trends in the prevalence and incidence of diabetes: insulin-dependent diabetes mellitus in childhood. World Health Stat Quart 41: 179–189
Åkerblom HK, Reunanen A (1985) The epidemiology of insulindependent diabetes mellitus (IDDM) in Finland and in Northern Europe. Diab Care 8 [Suppl 1]: 10–16
Reunanen A, Åkerblom HK, Tuomilehto J (1988) High incidence of insulin-dependent diabetes mellitus (IDDM) in children in Finland. Arct Med Res 47 [Suppl 1]: 535–539
Tuomilehto J, Rewers M, Reunanen A et al. (1991) Increasing trend in Type 1 (insulin-dependent) diabetes mellitus in childhood in Finland. Analysis of age, calendar time and birth cohort effects during 1965 to 1984. Diabetologia 34: 282–287
Bertrams J, Baur MP (1984) Insulin-dependent diabetes mellitus. In: Albert ED, Baur MP, Mayr WR (eds) Histocompability Testing Springer, Berlin Heidelberg New York, pp 348–358
Diabetes Epidemiology Research International (1987) Preventing insulin dependent diabetes mellitus: the environmental challenge. Br Med J 295: 479–481
Rayfield EJ, Ishimura K (1987) Environmental factors and insulin dependent diabetes mellitus. Diab Metabol Rev 3: 925–957
Eisenbarth GS (1986) Type 1 diabetes mellitus. A chronic autoimmune disease. N Engl J Med 314: 1360–1368
Bottazzo GF, Bonifacio E, Wagner R, Al-Sakkaf L, Dean BM, Mirakian R (1990) On the pathogenesis of Type 1 (insulin-dependent) diabetes mellitus: facts, areas still under development and new perspectives. Klin Wochenschr 68 [Suppl 21]: 26–37
Tuomilehto J, Wolf E (1987) Primary prevention of diabetes mellitus. Diab Care 10: 238–248
National Diabetes Data Group (1979) classification and diagnosis of diabetes mellitus and other categories of glucose intolerance. Diabetes 28: 1039–1057
Åkerblom HK, Reunanen A, Käär M-L (1980) The incidence of insulin-dependent diabetes mellitus in 0–14-year old children in Finland in 1970–78. Nordic Council Arct Med Res 26: 60–66
Rubinstein P, Sucio-Foca N, Nicholson JF (1977) Genetics of juvenile diabetes mellitus. N Engl J Med 297: 1036–1040
Spielman RS, Baker L, Zmijewski CM (1980) Gene dosage and susceptibility to insulin-dependent diabetes. Ann Hum Genet 43: 135–150
Thomson G (1980) A two locus model for juvenile diabetes. Ann Hum Genet 43: 383–398
Hodge SE, Rotter JI, Lange KL (1980) A three-allele model for heterogeneity of juvenile onset insulin-dependent diabetes. Ann Hum Genet 43: 399–412
Tuomilehto-Wolf E, Tuomilehto J, Lounamaa R, Cepaitis Z and the DiMe study group (1989) New susceptibility haplotype for Type 1 diabetes in Finland. Lancet II: 299–302
Somersalo O (1955) Studies of childhood diabetes. I. Incidence in Finland. Ann Paediatr Fenn 1: 239–249
Elliott RB, Martin JM (1984) Dietary protein: a trigger of insulin-dependent diabetes in the BB rat? Diabetologia 26: 297–299
Scott FW (1990) Cow milk and insulin-dependent diabetes mellitus: is there a relationship? Am J Clin Nutr 51: 489–491
Tuomilehto J, Tuomilehto-Wolf E, Virtala E, LaPorte RE (1990) Coffee consumption as trigger for insulin-dependent diabetes mellitus in childhood. Br Med J 300: 642–643
Hay DR (1949) The relation of maternal rubella to congenital deafness and other abnormalities in New Zealand. NZ Med J 48: 604–608
Gamble DR, Kinsley ML, Fitzgerald MG, Bolton R, Taylor KW (1969) Viral antibodies in diabetes mellitus. Br Med J 3: 627–630
Krolewski AS, Warram JH, Rand LI, Kahn CR (1987) Epidemiologic approach to the etiology of Type 1 diabetes mellitus and its complications. N Engl J Med 317: 1390–1398
Yoon J-W (1990) Viral pathogenesis of insulin-dependent diabetes mellitus. In: Ginsberg-Fellner F, McEvoy RC (eds) Autoimmunity and the pathogenesis of diabetes. Springer, New York, pp 206–255
Yoon JW, Ray UR (1985) Perspectives on the role of viruses in insulin-dependent diabetes. Diab Care 8 [Suppl 1]: 39–44
Barrett-Connor E (1985) Is insulin-dependent diabetes mellitus caused by coxsackievirus B infection? A review of the epidemiologic evidence. Rev Inf Dis 7: 207–215
Hyöty H, Leinikki P, Reunanen A et al. (1988) Mumps infections in the etiology of Type 1 (insulin-dependent) diabetes. Diabetes Res 9: 111–116
Dahlqvist G, Blom L, Tuvemo T, Nyström L, Sandström A, Wall S (1989) The Swedish childhood diabetes study —Results from a nine year case register and a one year case-referent study indicating that Type 1 (insulin-dependent) diabetes mellitus is associated with both Type 2 (non-insulin-dependent) diabetes mellitus and autoimmune disorders. Diabetologia 32: 2–6
Warram JH, Krolewski AS, Gottlieb MI, Kalm CR (1984) Differences in risk of insulin-dependent diabetes in offspring of diabetic mothers and diabetic fathers. N Engl J Med 311: 149–152
Pyörälä K, Salonen JT, Valkonen T (1985) Trends in coronary heart disease mortality and morbidity and related factors in Finland. Cardiology 72: 35–51
Hakulinen T, Andersen A, Mahler B, Pukkala E, Schon G, Tulinius H (1986) Trends in cancer incidence in the Nordic countries. A collaborative study of the five Nordic Cancer Registries. Acta Pathol Microbiol Immunol Scand 288: 1–151
Kinnunen E (1984) Multiple sclerosis in Finland: evidence of increasing frequency and uneven geographic distribution. Neurology 34: 457–461
Haahtela T, Heiskala M, Suoniemi I (1980) Allergic disorders and immediate skin test reactivity in Finnish adolescents. Allergy 35: 433–441
Hausen H, Milen A, Heinonen OP, Paunio I (1982) Caries in primary dentition and social class in high and low fluoride areas. Comm Dent Oral Epidemiol 10: 33–36
Hägglöf B, Holmgren G, Wall S (1982) Incidence of insulin-dependent diabetes mellitus among children in a North-Swedish population 1938–1977. Hum Hered 32: 408–417
Beckman G, Beckman L, Cedergren B, Nordenson I (1975) Population studies in northern Sweden. VII. Serum transferrin variants as markers of Finnish admixture. Hereditas 81: 63–68
Kalits I, Podar T (1990) Incidence and prevalence of Type 1 (insulin-dependent) diabetes in Estonia in 1988. Diabetologia 33: 346–349
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tuomilehto, J., Lounamaa, R., Tuomilehto-Wolf, E. et al. Epidemiology of childhood diabetes mellitus in Finland — background of a nationwide study of Type 1 (insulin-dependent) diabetes mellitus. Diabetologia 35, 70–76 (1992). https://doi.org/10.1007/BF00400854
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00400854
Key words
- Type 1 (insulin-dependent) diabetes mellitus
- epidemiology
- genetic-environmental interaction
- incidence
- familial occurrence