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  • 1
    Electronic Resource
    Electronic Resource
    Prevalence of diabetes mellitus in elderly men aged 65 to 84 years in eastern and western Finland (1986)
    Springer
    Diabetologia 29 (1986), S. 611-615 
    Details
    ISSN: 1432-0428
    Keywords: Type 2 diabetes ; diabetes prevalence ; blood glucose ; glucose tolerance ; epidemiology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We studied the prevalence of diabetes mellitus in men aged 65 to 84 years in Finland. The study sample consisted of 763 men, the survivors of the Finnish cohort of the "Seven Countries Study" first examined in 1959. The participation rate in the present survey was 94%. Blood glucose, fasting and 2 h after a 75-g oral glucose load, was determined from capillary blood. Current WHO criteria for diabetes mellitus were used. The mean fasting blood glucose level, adjusted for age and body mass index, was higher in east than west Finland. It rose with age in both areas. The prevalence of diabetes was 38% in the east and 36% in west Finland. About one-third of the men had impaired glucose tolerance. In the age group 75 to 79 years, the prevalence of diabetes was 65% in the east and 50% in the west. No systematic variation in the prevalence of impaired glucose tolerance with age was found. The mean levels of body mass index decreased with age in the same way in men with diabetes, impaired glucose tolerance and normal glucose tolerance. Body mass index was not higher in men with diabetes or impaired glucose tolerance than in men with normal glucose tolerance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00869258
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Increasing trend in Type 1 (insulin-dependent) diabetes mellitus in childhood in Finland (1991)
    Springer
    Diabetologia 34 (1991), S. 282-287 
    Details
    ISSN: 1432-0428
    Keywords: Type 1 diabetes ; incidence ; epidemiology ; time trends ; Finland
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The Central Drug Registry in Finland ascertained 5,920 incident cases of Type 1 (insulin-dependent) diabetes mellitus diagnosed under the age of 15 years, during 1965–1984. The incidence was higher for males 29.2/100,000 (95% confidence intervals 28.2–30.2/100,000) than for females 26.1/100,000 (25.1–27.1/100,000). A non-linear increase in incidence with age was confirmed, with peaks at ages 2,9 and 14 years in males and at 3,5–6 and 11 years in females. A significant temporal variation in incidence was found, adjusting for age and sex. During 1965 to 1984 the incidence rose by about 57% or by 2.4% annually. However, a non-linear curve with two incidence peaks in 1978 and 1983 would better describe the temporal pattern than a linear trend. There was no significant difference in the temporal variation between males and females. The changes in diabetes risk appeared to affect proportionally all age groups under 15 years. Two possible mechanisms were explored: a calendar period effect vs a birth cohort effect. The calendar time period effect was significant alone and also when adjusted for the birth cohort effect. One the contrary, the birth cohort effect was not significant, when adjusted for the calendar period effect. In conclusion, over the past two decades, the incidence of childhood Type 1 diabetes in Finland has increased by about 57%. The pattern of change was a steady rising background incidence superimposed by sudden outbreaks suggesting environmental causative factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00405089
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Evidence for importance of gender and birth cohort for risk of IDDM in offspring of IDDM parents (1995)
    Springer
    Diabetologia 38 (1995), S. 975-982 
    Details
    ISSN: 1432-0428
    Keywords: Key words Insulin-dependent diabetes mellitus ; epidemiology ; cumulative risk ; sex differential ; family history.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The risk of developing diabetes is higher in offspring of fathers than of mothers with insulin-dependent diabetes mellitus (IDDM). The reasons for this sex differential are unclear, as early studies were often selected and relatively small. We conducted a prospective study on the risk of IDDM in a cohort of 9,453 offspring from 5,255 Finnish parents with diabetes diagnosed before age 30 years. Age of first admission to the hospital was considered to be the age of diagnosis of IDDM in the offspring; IDDM occurred in 248 offspring. The risk of IDDM tended to be lower in the offspring of the same gender as the diabetic parent (adjusted risk ratio (RR) 0.78; p = 0.50). When offspring were of same gender as the diabetic parent, male offspring had a higher risk of IDDM than female offspring (RR 2.28; 95 % confidence interval 1.53–3.38), whereas if the gender of the diabetic parent and the offspring were different, the risk in male offspring was lower (RR 0.43; 95 % confidence interval 0.31–0.62). For the offspring of diabetic fathers, the cumulative risk by the age of 20 was higher (7.6 %) than for those with diabetic mothers (3.5 %) (p 〈 0.0001). In a multivariate analysis statistically significant predictors of IDDM in the offspring were the sex of the parent, the year of birth and the birth order of the offspring. The risk of IDDM in the offspring increased by 9 % per year of birth cohort. By age 20, the cumulative risk of developing IDDM in the offspring of diabetic parents was 5.3 %, 10 times higher than in the background population. It is likely that genetic factors seem to have played a major role in the continuous increase of IDDM incidence in Finnish children. [Diabetologia (1995) 38: 975–982]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00400588
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Evidence for importance of gender and birth cohort for risk of IDDM in offspring of IDDM parents (1995)
    Springer
    Diabetologia 38 (1995), S. 975-982 
    Details
    ISSN: 1432-0428
    Keywords: Insulin-dependent diabetes mellitus ; epidemiology ; cumulative risk ; sex differential ; family history
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The risk of developing diabetes is higher in offspring of fathers than of mothers with insulin-dependent diabetes mellitus (IDDM). The reasons for this sex differential are unclear, as early studies were often selected and relatively small. We conducted a prospective study on the risk of IDDM in a cohort of 9,453 offspring from 5,255 Finnish parents with diabetes diagnosed before age 30 years. Age of first admission to the hospital was considered to be the age of diagnosis of IDDM in the offspring; IDDM occurred in 248 offspring. The risk of IDDM tended to be lower in the offspring of the same gender as the diabetic parent (adjusted risk ratio (RR) 0.78; p=0.50). When offspring were of same gender as the diabetic parent, male offspring had a higher risk of IDDM than female offspring (RR 2.28; 95% confidence interval 1.53–3.38), whereas if the gender of the diabetic parent and the offspring were different, the risk in male offspring was lower (RR 0.43; 95% confidence interval 0.31–0.62). For the offspring of diabetic fathers, the cumulative risk by the age of 20 was higher (7.6%) than for those with diabetic mothers (3.5%) (p〈0.0001). In a multivariate analysis statistically significant predictors of IDDM in the offspring were the sex of the parent, the year of birth and the birth order of the offspring. The risk of IDDM in the offspring increased by 9% per year of birth cohort. By age 20, the cumulative risk of developing IDDM in the offspring of diabetic parents was 5.3%, 10 times higher than in the background population. It is likely that genetic factors seem to have played a major role in the continuous increase of IDDM incidence in Finnish children.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00400588
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Epidemiology of childhood diabetes mellitus in Finland — background of a nationwide study of Type 1 (insulin-dependent) diabetes mellitus (1992)
    Springer
    Diabetologia 35 (1992), S. 70-76 
    Details
    ISSN: 1432-0428
    Keywords: Type 1 (insulin-dependent) diabetes mellitus ; epidemiology ; genetic-environmental interaction ; incidence ; familial occurrence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: 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%).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00400854
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    Paper (German National Licenses)
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