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Association between average daily television viewing time and the incidence of ovarian cancer : findings from the Japan Collaborative Cohort Study
| Title: | Association between average daily television viewing time and the incidence of ovarian cancer : findings from the Japan Collaborative Cohort Study |
| Authors: | Ukawa, Shigekazu Browse this author →KAKEN DB | | Tamakoshi, Akiko Browse this author →KAKEN DB | | Mori, Mitsuru Browse this author →KAKEN DB | | Ikehara, Satoyo Browse this author | | Shirakawa, Toru Browse this author | | Yatsuya, Hiroshi Browse this author →KAKEN DB | | Iso, Hiroyasu Browse this author →KAKEN DB | | JACC study group Browse this author |
| Keywords: | Ovarian neoplasms | | Sedentary behavior | | Cohort study | | Risk assessment | | Epidemiology |
| Issue Date: | Feb-2018 |
| Publisher: | Springer |
| Journal Title: | Cancer causes & control |
| Volume: | 29 |
| Issue: | 2 |
| Start Page: | 213 |
| End Page: | 219 |
| Publisher DOI: | 10.1007/s10552-018-1001-8 |
| PMID: | 29340890 |
| 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. |
| Rights: | The final publication is available at link.springer.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/72460 |
| Appears in Collections: | 医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 鵜川 重和
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