Puberty, IDDM, and death in Japan. Diabetes Epidemiology Research International Study Group - PubMed (original) (raw)

Multicenter Study

. 1998 Oct;21(10):1674-9.

doi: 10.2337/diacare.21.10.1674.

Affiliations

Multicenter Study

Puberty, IDDM, and death in Japan. Diabetes Epidemiology Research International Study Group

R Nishimura et al. Diabetes Care. 1998 Oct.

Abstract

Objective: To investigate the impact of age at onset on the prognosis of childhood IDDM in Japan.

Research design and methods: The study population consisted of 987 prepubertal-onset and 345 pubertal-onset IDDM cases who were registered by two nationwide surveys and who were diagnosed between 1965 and 1979. The living status was identified as of 1 January 1990 with the ascertainment rate of 96.5%. Prognosis was evaluated by cause- and age-specific mortality rates and life-table analyses; in addition, an attained-age-matched case-control study was analyzed by conditional logistic regression.

Results: The adjusted mortality rates per 100,000 person-years for the pubertal-onset cases were significantly higher than those of the prepubertal-onset cases (835 [95% CI 573-1,168] vs. 391 [283-526]). Life-table analyses revealed that the survival rate of the pubertal-onset cases was lower than that of the prepubertal-onset cases for each observation period. Life-table analyses after the age of 15 years indicated that the prognosis of pubertal cases was almost the same as that of the prepubertal cases despite having a shorter duration of diabetes. The attained-age-matched case-control study indicated that the pubertal onset was a potent determinant of death.

Conclusions: The prognosis of pubertal-onset IDDM was considerably poorer than that of prepubertal-onset IDDM.

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