Prevalence of diseases and statistical power of the Japan Nurses' Health Study.

Prevalence of diseases and statistical power of the Japan Nurses' Health Study. Research Abstract Details 

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Prevalence of diseases and statistical power of the Japan Nurses' Health Study. Abstract Text:

Toshiharu Fujita,Kunihiko Hayashi,Kota Katanoda,Yasuhiro Matsumura,Jung Su Lee,Hirofumi Takagi,Shosuke Suzuki,Hideki Mizunuma,Takeshi Aso,Toshiharu Fujita,Kunihiko Hayashi,Kota Katanoda,Yasuhiro Matsumura,Jung Su Lee,Hirofumi Takagi,Shosuke Suzuki,Hideki Mizunuma,Takeshi Aso,Toshiharu Fujita,Kunihiko Hayashi,Kota Katanoda,Yasuhiro Matsumura,Jung Su Lee,Hirofumi Takagi,Shosuke Suzuki,Hideki Mizunuma,Takeshi Aso,

The Japan Nurses' Health Study (JNHS) is a long-term, large-scale cohort study investigating the effects of various lifestyle factors and healthcare habits on the health of Japanese women. Based on currently limited statistical data regarding the incidence of disease among Japanese women, our initial sample size was tentatively set at 50,000 during the design phase. The actual number of women who agreed to participate in follow-up surveys was approximately 18,000. Taking into account the actual sample size and new information on disease frequency obtained during the baseline component, we established the prevalence of past diagnoses of target diseases, predicted their incidence, and calculated the statistical power for JNHS follow-up surveys. For all diseases except ovarian cancer, the prevalence of a past diagnosis increased markedly with age, and incidence rates could be predicted based on the degree of increase in prevalence between two adjacent 5-yr age groups. The predicted incidence rate for uterine myoma, hypercholesterolemia, and hypertension was > or =3.0 (per 1,000 women, per year), while the rate of thyroid disease, hepatitis, gallstone disease, and benign breast tumor was predicted to be > or =1.0. For these diseases, the statistical power to detect risk factors with a relative risk of 1.5 or more within ten years, was 70% or higher.

Prevalence of diseases and statistical power of the Japan Nurses' Health Study. Publishing Authors By Initials

T Fujita,K Hayashi,K Katanoda,Y Matsumura,JS Lee,H Takagi,S Suzuki,H Mizunuma,T Aso,T Fujita,K Hayashi,K Katanoda,Y Matsumura,JS Lee,H Takagi,S Suzuki,H Mizunuma,T Aso,T Fujita,K Hayashi,K Katanoda,Y Matsumura,JS Lee,H Takagi,S Suzuki,H Mizunuma,T Aso,

For similar natural sciences: time: time factors research abstracts see: natural sciences: time: time factors research

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Prevalence of diseases and statistical power of the Japan Nurses' Health Study. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Industrial health

VOLUME: 45

Page Numbers: 687-94

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ISSN: 0019-8366

DAY: 25

MONTH: Oct

YEAR: 2007

Prevalence of diseases and statistical power of the Japan Nurses' Health Study. Information

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LANGUAGE: eng

NlmUniqueID: 2985065

Prevalence of diseases and statistical power of the Japan Nurses' Health Study. Keywords Mesh Terms:

KEYWORDS: Time Factors

MESH TERMS: epidemiology

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Grant and Affiliation Information for Prevalence of diseases and statistical power of the Japan Nurses' Health Study.

AFFILIATION: Department of Data Science, The Institute of Statistical Mathematics, Tokyo, Japan.

Country: Japan

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MEDLINETA: Ind Health

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