Change in food intake frequency at five years after baseline in the JACC Study

Sadao Suzuki, Miyuki Kawado, Shuji Hashimoto, Shinkan Tokudome, Takesumi Yoshimura, Akiko Tamakoshi, Mitsuru Mori, Yutaka Motohashi, Ichiro Tsuji, Yosikazu Nakamura, Hiroyasu Iso, Haruo Mikami, Yutaka Inaba, Yoshiharu Hoshiyama, Hiroshi Suzuki, Hiroyuki Shimizu, Hideaki Toyoshima, Kenji Wakai, Yoshinori Ito, Shuji Hashimoto & 16 others Shogo Kikuchi, Akio Koizumi, Takashi Kawamura, Yoshiyuki Watanabe, Tsuneharu Miki, Chigusa Date, Kiyomi Sakata, Takayuki Nose, Norihiko Hayakawa, Akira Shibata, Naoyuki Okamoto, Hideo Shio, Yoshiyuki Ohno, Tomoyuki Kitagawa, Toshio Kuroki, Kazuo Tajima

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Background: In a cohort study, information on an individual is taken at baseline, after which it usually remains fixed. There is some risk that this will lead to misclassification and cause weakened or biased results. To prevent such distortion, following up of exposure is important, although it is still scarce in practice. Methods: In the Japan Collaborative Cohort Study for Evaluation of Cancer Risk (JACC Study) sponsored by Monbusho (Ministry of Education, Science, Sports and Culture of Japan), 37,838 (14,531 males and 23,307 females) subjects out of a cohort of 127,477 inhabitants answered an interim questionnaire on food intake frequency consisting of 33 items about five years after registration. The long-term reproducibility was assessed using Spearman's correlation coefficients and agreement, From data at two time points, longitudinal change, age effect, and secular trend were examined. Subjective changes in these items at the time of the interim survey were also compared to longitudinal changes. Results: Spearman's correlation coefficients varied from 0.27 (fruitjuice in males) to 0.55 (beef in females and milk in males), and agreement from 29.9% (fruitjuice in males) to 61.4% (liver in females). Correlation was relatively stronger in meat and dairy products and weaker in vegetables and fruits. In both males and females, most increased food item was edible wild plants followed by confectioneries (males) and yogurt (females). Conclusion: Over five years, food intake was considerably changed. These interim data could be used for a long-term follow-up study to prevent the results becoming weakened or biased.

Original languageEnglish
JournalJournal of epidemiology
Volume15
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 12-10-2005

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Eating
Japan
Cohort Studies
Yogurt
Edible Plants
Meat Products
Dairy Products
Vegetables
Sports
Fruit
Milk
Education
Food
Liver
Neoplasms
Surveys and Questionnaires

All Science Journal Classification (ASJC) codes

  • Epidemiology

Cite this

Suzuki, S., Kawado, M., Hashimoto, S., Tokudome, S., Yoshimura, T., Tamakoshi, A., ... Tajima, K. (2005). Change in food intake frequency at five years after baseline in the JACC Study. Journal of epidemiology, 15(SUPPL. 1). https://doi.org/10.2188/jea.15.S48
Suzuki, Sadao ; Kawado, Miyuki ; Hashimoto, Shuji ; Tokudome, Shinkan ; Yoshimura, Takesumi ; Tamakoshi, Akiko ; Mori, Mitsuru ; Motohashi, Yutaka ; Tsuji, Ichiro ; Nakamura, Yosikazu ; Iso, Hiroyasu ; Mikami, Haruo ; Inaba, Yutaka ; Hoshiyama, Yoshiharu ; Suzuki, Hiroshi ; Shimizu, Hiroyuki ; Toyoshima, Hideaki ; Wakai, Kenji ; Ito, Yoshinori ; Hashimoto, Shuji ; Kikuchi, Shogo ; Koizumi, Akio ; Kawamura, Takashi ; Watanabe, Yoshiyuki ; Miki, Tsuneharu ; Date, Chigusa ; Sakata, Kiyomi ; Nose, Takayuki ; Hayakawa, Norihiko ; Shibata, Akira ; Okamoto, Naoyuki ; Shio, Hideo ; Ohno, Yoshiyuki ; Kitagawa, Tomoyuki ; Kuroki, Toshio ; Tajima, Kazuo. / Change in food intake frequency at five years after baseline in the JACC Study. In: Journal of epidemiology. 2005 ; Vol. 15, No. SUPPL. 1.
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abstract = "Background: In a cohort study, information on an individual is taken at baseline, after which it usually remains fixed. There is some risk that this will lead to misclassification and cause weakened or biased results. To prevent such distortion, following up of exposure is important, although it is still scarce in practice. Methods: In the Japan Collaborative Cohort Study for Evaluation of Cancer Risk (JACC Study) sponsored by Monbusho (Ministry of Education, Science, Sports and Culture of Japan), 37,838 (14,531 males and 23,307 females) subjects out of a cohort of 127,477 inhabitants answered an interim questionnaire on food intake frequency consisting of 33 items about five years after registration. The long-term reproducibility was assessed using Spearman's correlation coefficients and agreement, From data at two time points, longitudinal change, age effect, and secular trend were examined. Subjective changes in these items at the time of the interim survey were also compared to longitudinal changes. Results: Spearman's correlation coefficients varied from 0.27 (fruitjuice in males) to 0.55 (beef in females and milk in males), and agreement from 29.9{\%} (fruitjuice in males) to 61.4{\%} (liver in females). Correlation was relatively stronger in meat and dairy products and weaker in vegetables and fruits. In both males and females, most increased food item was edible wild plants followed by confectioneries (males) and yogurt (females). Conclusion: Over five years, food intake was considerably changed. These interim data could be used for a long-term follow-up study to prevent the results becoming weakened or biased.",
author = "Sadao Suzuki and Miyuki Kawado and Shuji Hashimoto and Shinkan Tokudome and Takesumi Yoshimura and Akiko Tamakoshi and Mitsuru Mori and Yutaka Motohashi and Ichiro Tsuji and Yosikazu Nakamura and Hiroyasu Iso and Haruo Mikami and Yutaka Inaba and Yoshiharu Hoshiyama and Hiroshi Suzuki and Hiroyuki Shimizu and Hideaki Toyoshima and Kenji Wakai and Yoshinori Ito and Shuji Hashimoto and Shogo Kikuchi and Akio Koizumi and Takashi Kawamura and Yoshiyuki Watanabe and Tsuneharu Miki and Chigusa Date and Kiyomi Sakata and Takayuki Nose and Norihiko Hayakawa and Akira Shibata and Naoyuki Okamoto and Hideo Shio and Yoshiyuki Ohno and Tomoyuki Kitagawa and Toshio Kuroki and Kazuo Tajima",
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doi = "10.2188/jea.15.S48",
language = "English",
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journal = "Journal of Epidemiology",
issn = "0917-5040",
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Suzuki, S, Kawado, M, Hashimoto, S, Tokudome, S, Yoshimura, T, Tamakoshi, A, Mori, M, Motohashi, Y, Tsuji, I, Nakamura, Y, Iso, H, Mikami, H, Inaba, Y, Hoshiyama, Y, Suzuki, H, Shimizu, H, Toyoshima, H, Wakai, K, Ito, Y, Hashimoto, S, Kikuchi, S, Koizumi, A, Kawamura, T, Watanabe, Y, Miki, T, Date, C, Sakata, K, Nose, T, Hayakawa, N, Shibata, A, Okamoto, N, Shio, H, Ohno, Y, Kitagawa, T, Kuroki, T & Tajima, K 2005, 'Change in food intake frequency at five years after baseline in the JACC Study', Journal of epidemiology, vol. 15, no. SUPPL. 1. https://doi.org/10.2188/jea.15.S48

Change in food intake frequency at five years after baseline in the JACC Study. / Suzuki, Sadao; Kawado, Miyuki; Hashimoto, Shuji; Tokudome, Shinkan; Yoshimura, Takesumi; Tamakoshi, Akiko; Mori, Mitsuru; Motohashi, Yutaka; Tsuji, Ichiro; Nakamura, Yosikazu; Iso, Hiroyasu; Mikami, Haruo; Inaba, Yutaka; Hoshiyama, Yoshiharu; Suzuki, Hiroshi; Shimizu, Hiroyuki; Toyoshima, Hideaki; Wakai, Kenji; Ito, Yoshinori; Hashimoto, Shuji; Kikuchi, Shogo; Koizumi, Akio; Kawamura, Takashi; Watanabe, Yoshiyuki; Miki, Tsuneharu; Date, Chigusa; Sakata, Kiyomi; Nose, Takayuki; Hayakawa, Norihiko; Shibata, Akira; Okamoto, Naoyuki; Shio, Hideo; Ohno, Yoshiyuki; Kitagawa, Tomoyuki; Kuroki, Toshio; Tajima, Kazuo.

In: Journal of epidemiology, Vol. 15, No. SUPPL. 1, 12.10.2005.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Change in food intake frequency at five years after baseline in the JACC Study

AU - Suzuki, Sadao

AU - Kawado, Miyuki

AU - Hashimoto, Shuji

AU - Tokudome, Shinkan

AU - Yoshimura, Takesumi

AU - Tamakoshi, Akiko

AU - Mori, Mitsuru

AU - Motohashi, Yutaka

AU - Tsuji, Ichiro

AU - Nakamura, Yosikazu

AU - Iso, Hiroyasu

AU - Mikami, Haruo

AU - Inaba, Yutaka

AU - Hoshiyama, Yoshiharu

AU - Suzuki, Hiroshi

AU - Shimizu, Hiroyuki

AU - Toyoshima, Hideaki

AU - Wakai, Kenji

AU - Ito, Yoshinori

AU - Hashimoto, Shuji

AU - Kikuchi, Shogo

AU - Koizumi, Akio

AU - Kawamura, Takashi

AU - Watanabe, Yoshiyuki

AU - Miki, Tsuneharu

AU - Date, Chigusa

AU - Sakata, Kiyomi

AU - Nose, Takayuki

AU - Hayakawa, Norihiko

AU - Shibata, Akira

AU - Okamoto, Naoyuki

AU - Shio, Hideo

AU - Ohno, Yoshiyuki

AU - Kitagawa, Tomoyuki

AU - Kuroki, Toshio

AU - Tajima, Kazuo

PY - 2005/10/12

Y1 - 2005/10/12

N2 - Background: In a cohort study, information on an individual is taken at baseline, after which it usually remains fixed. There is some risk that this will lead to misclassification and cause weakened or biased results. To prevent such distortion, following up of exposure is important, although it is still scarce in practice. Methods: In the Japan Collaborative Cohort Study for Evaluation of Cancer Risk (JACC Study) sponsored by Monbusho (Ministry of Education, Science, Sports and Culture of Japan), 37,838 (14,531 males and 23,307 females) subjects out of a cohort of 127,477 inhabitants answered an interim questionnaire on food intake frequency consisting of 33 items about five years after registration. The long-term reproducibility was assessed using Spearman's correlation coefficients and agreement, From data at two time points, longitudinal change, age effect, and secular trend were examined. Subjective changes in these items at the time of the interim survey were also compared to longitudinal changes. Results: Spearman's correlation coefficients varied from 0.27 (fruitjuice in males) to 0.55 (beef in females and milk in males), and agreement from 29.9% (fruitjuice in males) to 61.4% (liver in females). Correlation was relatively stronger in meat and dairy products and weaker in vegetables and fruits. In both males and females, most increased food item was edible wild plants followed by confectioneries (males) and yogurt (females). Conclusion: Over five years, food intake was considerably changed. These interim data could be used for a long-term follow-up study to prevent the results becoming weakened or biased.

AB - Background: In a cohort study, information on an individual is taken at baseline, after which it usually remains fixed. There is some risk that this will lead to misclassification and cause weakened or biased results. To prevent such distortion, following up of exposure is important, although it is still scarce in practice. Methods: In the Japan Collaborative Cohort Study for Evaluation of Cancer Risk (JACC Study) sponsored by Monbusho (Ministry of Education, Science, Sports and Culture of Japan), 37,838 (14,531 males and 23,307 females) subjects out of a cohort of 127,477 inhabitants answered an interim questionnaire on food intake frequency consisting of 33 items about five years after registration. The long-term reproducibility was assessed using Spearman's correlation coefficients and agreement, From data at two time points, longitudinal change, age effect, and secular trend were examined. Subjective changes in these items at the time of the interim survey were also compared to longitudinal changes. Results: Spearman's correlation coefficients varied from 0.27 (fruitjuice in males) to 0.55 (beef in females and milk in males), and agreement from 29.9% (fruitjuice in males) to 61.4% (liver in females). Correlation was relatively stronger in meat and dairy products and weaker in vegetables and fruits. In both males and females, most increased food item was edible wild plants followed by confectioneries (males) and yogurt (females). Conclusion: Over five years, food intake was considerably changed. These interim data could be used for a long-term follow-up study to prevent the results becoming weakened or biased.

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