The Ohsaki cohort 2006 study: Design of study and prole of participants at baseline

Shinichi Kuriyama, Naoki Nakaya, Kaori Ohmori-Matsuda, Taichi Shimazu, Nobutaka Kikuchi, Masako Kakizaki, Toshimasa Sone, Fumi Sato, Masato Nagai, Yumi Sugawara, Yasutake Tomata, Munira Akhter, Mizuka Higashiguchi, Naru Fukuchi, Hideko Takahashi, Atsushi Hozawa, Ichiro Tsuji

Research output: Contribution to journalArticle

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Abstract

Background: Large-scale cohort studies conducted in Japan do not always include psychosocial factors as exposures. In addition, such studies sometimes fail to satisfactorily evaluate disability status as an outcome. Methods: This prospective cohort study comprised 49 603 (22 438 men and 27 165 women) community-dwelling adults aged 40 years or older who were included in the Residential Registry for Ohsaki City, Miyagi Prefecture, in northeastern Japan. The baseline survey, which included psychosocial factors, was conducted in December 2006. Follow-up of death, immigration, cause of death, cancer incidence, and long-term care insurance certication was started on 1 January 2007. Results: The response rate was 64.2%. In general, lifestyle-related conditions in the study population were similar to those of the general Japanese population; however, the proportion of male current smokers was higher in the cohort. The association between age and the proportion of those reporting psychological distress showed a clear U-shaped curve, with a nadir at age 60 to 69 years in both men and women, although more women were affected by such distress than men. The proportion of those who reported a lack of social support was highest among those aged 40 to 49 years. Most men and women surveyed did not participate in community activities. Among participants aged 65 years or older, 10.9% of participants were certied beneciaries of the long-term care insurance system at baseline. Conclusions: The Ohsaki Cohort 2006 Study is a novel population-based prospective cohort study that focuses on psychosocial factors and long-term care insurance certication.

Original languageEnglish
Pages (from-to)253-258
Number of pages6
JournalJournal of epidemiology
Volume20
Issue number3
DOIs
Publication statusPublished - 07-09-2010

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Long-Term Care Insurance
Cohort Studies
Psychology
Japan
Prospective Studies
Population
Independent Living
Emigration and Immigration
Social Support
Registries
Life Style
Cause of Death
Incidence
Neoplasms

All Science Journal Classification (ASJC) codes

  • Epidemiology

Cite this

Kuriyama, S., Nakaya, N., Ohmori-Matsuda, K., Shimazu, T., Kikuchi, N., Kakizaki, M., ... Tsuji, I. (2010). The Ohsaki cohort 2006 study: Design of study and prole of participants at baseline. Journal of epidemiology, 20(3), 253-258. https://doi.org/10.2188/jea.JE20090093
Kuriyama, Shinichi ; Nakaya, Naoki ; Ohmori-Matsuda, Kaori ; Shimazu, Taichi ; Kikuchi, Nobutaka ; Kakizaki, Masako ; Sone, Toshimasa ; Sato, Fumi ; Nagai, Masato ; Sugawara, Yumi ; Tomata, Yasutake ; Akhter, Munira ; Higashiguchi, Mizuka ; Fukuchi, Naru ; Takahashi, Hideko ; Hozawa, Atsushi ; Tsuji, Ichiro. / The Ohsaki cohort 2006 study : Design of study and prole of participants at baseline. In: Journal of epidemiology. 2010 ; Vol. 20, No. 3. pp. 253-258.
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abstract = "Background: Large-scale cohort studies conducted in Japan do not always include psychosocial factors as exposures. In addition, such studies sometimes fail to satisfactorily evaluate disability status as an outcome. Methods: This prospective cohort study comprised 49 603 (22 438 men and 27 165 women) community-dwelling adults aged 40 years or older who were included in the Residential Registry for Ohsaki City, Miyagi Prefecture, in northeastern Japan. The baseline survey, which included psychosocial factors, was conducted in December 2006. Follow-up of death, immigration, cause of death, cancer incidence, and long-term care insurance certication was started on 1 January 2007. Results: The response rate was 64.2{\%}. In general, lifestyle-related conditions in the study population were similar to those of the general Japanese population; however, the proportion of male current smokers was higher in the cohort. The association between age and the proportion of those reporting psychological distress showed a clear U-shaped curve, with a nadir at age 60 to 69 years in both men and women, although more women were affected by such distress than men. The proportion of those who reported a lack of social support was highest among those aged 40 to 49 years. Most men and women surveyed did not participate in community activities. Among participants aged 65 years or older, 10.9{\%} of participants were certied beneciaries of the long-term care insurance system at baseline. Conclusions: The Ohsaki Cohort 2006 Study is a novel population-based prospective cohort study that focuses on psychosocial factors and long-term care insurance certication.",
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Kuriyama, S, Nakaya, N, Ohmori-Matsuda, K, Shimazu, T, Kikuchi, N, Kakizaki, M, Sone, T, Sato, F, Nagai, M, Sugawara, Y, Tomata, Y, Akhter, M, Higashiguchi, M, Fukuchi, N, Takahashi, H, Hozawa, A & Tsuji, I 2010, 'The Ohsaki cohort 2006 study: Design of study and prole of participants at baseline', Journal of epidemiology, vol. 20, no. 3, pp. 253-258. https://doi.org/10.2188/jea.JE20090093

The Ohsaki cohort 2006 study : Design of study and prole of participants at baseline. / Kuriyama, Shinichi; Nakaya, Naoki; Ohmori-Matsuda, Kaori; Shimazu, Taichi; Kikuchi, Nobutaka; Kakizaki, Masako; Sone, Toshimasa; Sato, Fumi; Nagai, Masato; Sugawara, Yumi; Tomata, Yasutake; Akhter, Munira; Higashiguchi, Mizuka; Fukuchi, Naru; Takahashi, Hideko; Hozawa, Atsushi; Tsuji, Ichiro.

In: Journal of epidemiology, Vol. 20, No. 3, 07.09.2010, p. 253-258.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The Ohsaki cohort 2006 study

T2 - Design of study and prole of participants at baseline

AU - Kuriyama, Shinichi

AU - Nakaya, Naoki

AU - Ohmori-Matsuda, Kaori

AU - Shimazu, Taichi

AU - Kikuchi, Nobutaka

AU - Kakizaki, Masako

AU - Sone, Toshimasa

AU - Sato, Fumi

AU - Nagai, Masato

AU - Sugawara, Yumi

AU - Tomata, Yasutake

AU - Akhter, Munira

AU - Higashiguchi, Mizuka

AU - Fukuchi, Naru

AU - Takahashi, Hideko

AU - Hozawa, Atsushi

AU - Tsuji, Ichiro

PY - 2010/9/7

Y1 - 2010/9/7

N2 - Background: Large-scale cohort studies conducted in Japan do not always include psychosocial factors as exposures. In addition, such studies sometimes fail to satisfactorily evaluate disability status as an outcome. Methods: This prospective cohort study comprised 49 603 (22 438 men and 27 165 women) community-dwelling adults aged 40 years or older who were included in the Residential Registry for Ohsaki City, Miyagi Prefecture, in northeastern Japan. The baseline survey, which included psychosocial factors, was conducted in December 2006. Follow-up of death, immigration, cause of death, cancer incidence, and long-term care insurance certication was started on 1 January 2007. Results: The response rate was 64.2%. In general, lifestyle-related conditions in the study population were similar to those of the general Japanese population; however, the proportion of male current smokers was higher in the cohort. The association between age and the proportion of those reporting psychological distress showed a clear U-shaped curve, with a nadir at age 60 to 69 years in both men and women, although more women were affected by such distress than men. The proportion of those who reported a lack of social support was highest among those aged 40 to 49 years. Most men and women surveyed did not participate in community activities. Among participants aged 65 years or older, 10.9% of participants were certied beneciaries of the long-term care insurance system at baseline. Conclusions: The Ohsaki Cohort 2006 Study is a novel population-based prospective cohort study that focuses on psychosocial factors and long-term care insurance certication.

AB - Background: Large-scale cohort studies conducted in Japan do not always include psychosocial factors as exposures. In addition, such studies sometimes fail to satisfactorily evaluate disability status as an outcome. Methods: This prospective cohort study comprised 49 603 (22 438 men and 27 165 women) community-dwelling adults aged 40 years or older who were included in the Residential Registry for Ohsaki City, Miyagi Prefecture, in northeastern Japan. The baseline survey, which included psychosocial factors, was conducted in December 2006. Follow-up of death, immigration, cause of death, cancer incidence, and long-term care insurance certication was started on 1 January 2007. Results: The response rate was 64.2%. In general, lifestyle-related conditions in the study population were similar to those of the general Japanese population; however, the proportion of male current smokers was higher in the cohort. The association between age and the proportion of those reporting psychological distress showed a clear U-shaped curve, with a nadir at age 60 to 69 years in both men and women, although more women were affected by such distress than men. The proportion of those who reported a lack of social support was highest among those aged 40 to 49 years. Most men and women surveyed did not participate in community activities. Among participants aged 65 years or older, 10.9% of participants were certied beneciaries of the long-term care insurance system at baseline. Conclusions: The Ohsaki Cohort 2006 Study is a novel population-based prospective cohort study that focuses on psychosocial factors and long-term care insurance certication.

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