Association between average daily television viewing time and the incidence of ovarian cancer

findings from the Japan Collaborative Cohort Study

JACC Study Group

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Purpose: Seventy-five percent of epidemiological studies have reported that sedentary behavior is associated with ovarian cancer incidence. Although Japan has one of the most sedentary populations, with median sitting times of 7 h/day, this association has not been investigated. This study aimed to elucidate the association between average daily television (TV) viewing time, which is a major sedentary behavior, and the incidence of ovarian cancer in a large-scale nationwide cohort study in Japan. Methods: A total of 34,758 female participants aged 40–79 years without a history of cancer at baseline were included in the study. The inverse probability weighted competing risk model was used to calculate the hazard ratio (HR) and 95% confidence interval (CI) for the incidence of ovarian cancer. Results: During a median follow-up of 19.4 years, 59 participants developed ovarian cancer (ICD-10: C56), 2,706 participants developed other types of cancer, and 4,318 participants died. Participants who watched TV for ≥ 5 h/day were more likely to develop ovarian cancer than those who watched TV for < 2 h/day (HR 2.15; 95% CI 1.54–2.99). Conclusion: Our findings suggest that reducing the amount of time spent sedentarily may be beneficial for preventing ovarian cancer.

Original languageEnglish
Pages (from-to)213-219
Number of pages7
JournalCancer Causes and Control
Volume29
Issue number2
DOIs
Publication statusPublished - 01-02-2018

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Television
Ovarian Neoplasms
Japan
Cohort Studies
Incidence
Confidence Intervals
International Classification of Diseases
Epidemiologic Studies
Neoplasms
Population

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

Cite this

@article{b4cc754271a747c48cc2a672679ceab7,
title = "Association between average daily television viewing time and the incidence of ovarian cancer: findings from the Japan Collaborative Cohort Study",
abstract = "Purpose: Seventy-five percent of epidemiological studies have reported that sedentary behavior is associated with ovarian cancer incidence. Although Japan has one of the most sedentary populations, with median sitting times of 7 h/day, this association has not been investigated. This study aimed to elucidate the association between average daily television (TV) viewing time, which is a major sedentary behavior, and the incidence of ovarian cancer in a large-scale nationwide cohort study in Japan. Methods: A total of 34,758 female participants aged 40–79 years without a history of cancer at baseline were included in the study. The inverse probability weighted competing risk model was used to calculate the hazard ratio (HR) and 95{\%} confidence interval (CI) for the incidence of ovarian cancer. Results: During a median follow-up of 19.4 years, 59 participants developed ovarian cancer (ICD-10: C56), 2,706 participants developed other types of cancer, and 4,318 participants died. Participants who watched TV for ≥ 5 h/day were more likely to develop ovarian cancer than those who watched TV for < 2 h/day (HR 2.15; 95{\%} CI 1.54–2.99). Conclusion: Our findings suggest that reducing the amount of time spent sedentarily may be beneficial for preventing ovarian cancer.",
author = "{JACC Study Group} and Shigekazu Ukawa and Akiko Tamakoshi and Mitsuru Mori and Satoyo Ikehara and Toru Shirakawa and Hiroshi Yatsuya and Hiroyasu Iso and Akiko Tamakoshi and Mitsuru Mori and Hiroshi Yatsuya and Yutaka Motohashi and Ichiro Tsuji and Yoshikazu Nakamura and Hiroyasu Iso and Haruo Mikami and Michiko Kurosawa and Yoshiharu Hoshiyama and Naohito Tanabe and Koji Tamakoshi and Kenji Wakai and Shinkan Tokudome and Koji Suzuki and Shuji Hashimoto and Shogo Kikuchi and Yasuhiko Wada and Takashi Kawamura and Koji Suzuki and Shuji Hashimoto and Tsuneharu Miki and Chigusa Date and Kiyomi Sakata and Yoichi Kurozawa and Takesumi Yoshimura and Yoshihisa Fujino and Akira Shibata and Naoyuki Okamoto and Hideo Shio",
year = "2018",
month = "2",
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doi = "10.1007/s10552-018-1001-8",
language = "English",
volume = "29",
pages = "213--219",
journal = "Cancer Causes and Control",
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Association between average daily television viewing time and the incidence of ovarian cancer : findings from the Japan Collaborative Cohort Study. / JACC Study Group.

In: Cancer Causes and Control, Vol. 29, No. 2, 01.02.2018, p. 213-219.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Association between average daily television viewing time and the incidence of ovarian cancer

T2 - findings from the Japan Collaborative Cohort Study

AU - JACC Study Group

AU - Ukawa, Shigekazu

AU - Tamakoshi, Akiko

AU - Mori, Mitsuru

AU - Ikehara, Satoyo

AU - Shirakawa, Toru

AU - Yatsuya, Hiroshi

AU - Iso, Hiroyasu

AU - Tamakoshi, Akiko

AU - Mori, Mitsuru

AU - Yatsuya, Hiroshi

AU - Motohashi, Yutaka

AU - Tsuji, Ichiro

AU - Nakamura, Yoshikazu

AU - Iso, Hiroyasu

AU - Mikami, Haruo

AU - Kurosawa, Michiko

AU - Hoshiyama, Yoshiharu

AU - Tanabe, Naohito

AU - Tamakoshi, Koji

AU - Wakai, Kenji

AU - Tokudome, Shinkan

AU - Suzuki, Koji

AU - Hashimoto, Shuji

AU - Kikuchi, Shogo

AU - Wada, Yasuhiko

AU - Kawamura, Takashi

AU - Suzuki, Koji

AU - Hashimoto, Shuji

AU - Miki, Tsuneharu

AU - Date, Chigusa

AU - Sakata, Kiyomi

AU - Kurozawa, Yoichi

AU - Yoshimura, Takesumi

AU - Fujino, Yoshihisa

AU - Shibata, Akira

AU - Okamoto, Naoyuki

AU - Shio, Hideo

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Purpose: Seventy-five percent of epidemiological studies have reported that sedentary behavior is associated with ovarian cancer incidence. Although Japan has one of the most sedentary populations, with median sitting times of 7 h/day, this association has not been investigated. This study aimed to elucidate the association between average daily television (TV) viewing time, which is a major sedentary behavior, and the incidence of ovarian cancer in a large-scale nationwide cohort study in Japan. Methods: A total of 34,758 female participants aged 40–79 years without a history of cancer at baseline were included in the study. The inverse probability weighted competing risk model was used to calculate the hazard ratio (HR) and 95% confidence interval (CI) for the incidence of ovarian cancer. Results: During a median follow-up of 19.4 years, 59 participants developed ovarian cancer (ICD-10: C56), 2,706 participants developed other types of cancer, and 4,318 participants died. Participants who watched TV for ≥ 5 h/day were more likely to develop ovarian cancer than those who watched TV for < 2 h/day (HR 2.15; 95% CI 1.54–2.99). Conclusion: Our findings suggest that reducing the amount of time spent sedentarily may be beneficial for preventing ovarian cancer.

AB - Purpose: Seventy-five percent of epidemiological studies have reported that sedentary behavior is associated with ovarian cancer incidence. Although Japan has one of the most sedentary populations, with median sitting times of 7 h/day, this association has not been investigated. This study aimed to elucidate the association between average daily television (TV) viewing time, which is a major sedentary behavior, and the incidence of ovarian cancer in a large-scale nationwide cohort study in Japan. Methods: A total of 34,758 female participants aged 40–79 years without a history of cancer at baseline were included in the study. The inverse probability weighted competing risk model was used to calculate the hazard ratio (HR) and 95% confidence interval (CI) for the incidence of ovarian cancer. Results: During a median follow-up of 19.4 years, 59 participants developed ovarian cancer (ICD-10: C56), 2,706 participants developed other types of cancer, and 4,318 participants died. Participants who watched TV for ≥ 5 h/day were more likely to develop ovarian cancer than those who watched TV for < 2 h/day (HR 2.15; 95% CI 1.54–2.99). Conclusion: Our findings suggest that reducing the amount of time spent sedentarily may be beneficial for preventing ovarian cancer.

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U2 - 10.1007/s10552-018-1001-8

DO - 10.1007/s10552-018-1001-8

M3 - Article

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EP - 219

JO - Cancer Causes and Control

JF - Cancer Causes and Control

SN - 0957-5243

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