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ROTATING NIGHT SHIFT WORK, SLEEP, AND COLORECTAL ADENOMA IN WOMEN
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Jan 17 2017
Source: Int J Colorectal Dis. 32(7):1013-1018.
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Details:
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Alternative Title:Int J Colorectal Dis
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Description:Purpose
To investigate the associations of rotating night shift work history and sleep duration with risk of colorectal adenoma.
Methods
We evaluated 56,275 cancer-free participants of the Nurses’ Health Study II, who had their first colonoscopy or sigmoidoscopy between 1991 and 2011; rotating night shift work and sleep duration were reported by mailed questionnaire. Multivariable-adjusted logistic regression was used to estimate relative risks (RR) of colorectal adenoma, with 95% confidence intervals (CI), across categories of rotating night shift work history (none, 1–4, 5–9, and ≥10 years) and sleep duration (≤5, 6, 7, 8, and ≥9 hours/day).
Results
We found no association between duration of rotating night shift work and occurrence of colorectal adenoma (p-trend across shift work categories=0.5). Women with the longest durations of rotating night shift work (≥10 years) had a similar risk of adenoma compared to women without a history of rotating night shift work (multivariable-adjusted RR: 0.96, 95% CI: 0.83–1.11). Similarly, there were no associations of shorter or longer sleep durations with adenoma risk (p-trend=0.2 across sleep durations of ≤5 through 7 hours/day, and p-trend=0.5 across sleep durations of 7 through ≥9 hours/day). Results were similar when we examined associations according to adenoma location and subtype.
Conclusions
Our results do not support an association between rotating night shift work or sleep duration and risk of colorectal adenoma in women.
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Subject:
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Pubmed ID:28097381
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Pubmed Central ID:PMC5474168
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