Sleep duration and risk of cancer in the Mexican American Mano-a-Mano Cohort

Shen, Jie; Chrisman, Matthew; Wu, Xifeng; Chow, Wong Ho; Zhao, Hua

doi:10.1016/j.sleh.2018.09.004

Cited by 21 publications

(27 citation statements)

References 38 publications

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“…Shift work may modify sleep habits and chronotype [ 31 , 32 ]. Along these lines, an association between sleep duration and cancer has been described, finding a relationship between a deficit of hours of sleep and a higher risk of breast and colorectal cancer [ 33 , 34 ]. This risk association could be due to the existence of reduced levels of melatonin, as it suppresses the initiation phase of tumorigenesis and inhibits the proliferation of human cancer cell lines [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

Night Shift Work, Chronotype, Sleep Duration, and Prostate Cancer Risk: CAPLIFE Study

Lozano‐Lorca

Olmedo-Requena

Vega-Galindo³

et al. 2020

IJERPH

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To analyze the association between prostate cancer (PCa) risk and night shift work, chronotype, and sleep duration in the context of a population-based case-control study of incident prostate cancer in Spain, a total of 465 PCa cases and 410 controls were analyzed. Selection criteria were: (i) age 40–80 years, and (ii) residence in the coverage area of the reference hospitals for ≥6 months before recruitment. Exposure variables were: (i) night shift work (permanent or rotating); (ii) chronotype: morning, neither, or evening (Munich ChronoType Questionnaire) and (iii) sleep duration according to the recommendations of the American National Sleep Foundation. PCa aggressiveness was determined according to the International Society of Urology Pathology classification. Adjusted odds ratios (aOR) and 95% confidence intervals (95% CI) were estimated using logistic regression models. Night shift work was associated with PCa, aOR = 1.47 (95% CI 1.02–2.11), especially for rotating night shifts, aOR = 1.73 (95% CI 1.09–2.75). The magnitude of the association between ever night work and PCa was higher in evening subjects with aOR = 3.14 (95% CI 0.91–10.76) than in morning chronotypes with an aOR = 1.25 (95% CI 0.78–2.00). Working night shifts, especially rotating night shifts, could increase PCa risk. This risk may be higher in people with an evening chronotype.

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Section: Introductionmentioning

confidence: 99%

Night Shift Work, Chronotype, Sleep Duration, and Prostate Cancer Risk: CAPLIFE Study

Lozano‐Lorca

Olmedo-Requena

Vega-Galindo³

et al. 2020

IJERPH

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“…The referent sleep duration group was similar to that used in other studies, except for Cao et al [11], Shen et al [13] and Wu et al [4] where the baseline category was switched using the generalised least squares method [26]. In studies where multiple categories of short or long sleep were available [2,5,6,8,9,13] , a single estimate was obtained using the generalised least squares method [26]. We re-estimated RRs of breast cancer for <7, 7-8, >8 hours of total sleep duration in the Million Women Study for the whole follow-up period and for the follow-up period with the first five years excluded, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Our systematic review identified 14 previously published prospective studies (Table S3) [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Meta-analysismentioning

confidence: 99%

“…Short sleep duration has been hypothesised to increase breast cancer risk [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The light-at-night hypothesis suggests that exposure to artificial light at night may affect the circadian system and suppress melatonin production, which may lead to increased oestrogen production and a higher risk of breast cancer [15].…”

Section: Introductionmentioning

confidence: 99%

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Sleep duration and breast cancer incidence: results from the million women study and a meta-analysis of published prospective studies

et al. 2019

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Study objectives: To investigate the association between sleep duration and breast cancer incidence, we examined the association in a large UK prospective study and conducted a meta-analysis of prospective studies. Methods: In the Million Women Study, usual sleep duration over a 24-hour period was collected in 2001 for 713,150 participants without prior cancer, heart problems, stroke or diabetes (mean age=60 years). Follow-up for breast cancer was by record linkage to national cancer registry data for 14.3 years on average from the 3-year resurvey. Cox regression models yielded multivariable-adjusted breast cancer relative risks (RR) and 95% confidence intervals (CIs) for sleep duration categories. Published prospective studies of sleep duration and breast cancer risk were included in a metaanalysis, which estimated the inverse-variance weighted average of study-specific log RRs for short and for long versus average duration sleep. Results: After excluding the first five years to minimise reverse causation bias in the Million Women Study, 24,476 women developed breast cancer. Compared with 7-8 hours of sleep, the RRs for <6, 6, 9, and >9 hours of sleep were 1.01 (95%CI, 0.95-1.07), 0.99 (0.96-1.03), 1.01 (0.96-1.06), and 1.03 (0.95-1.12), respectively. In a meta-analysis of 14 prospective studies plus the Million Women Study, including 65,410 breast cancer cases, neither short (RR<7 hours=0.99 [0.98-1.01]) nor long (RR>8 hours=1.01 [0.98-1.04]) versus average duration sleep was associated with breast cancer risk. Conclusions: The totality of the prospective evidence does not support an association between sleep duration and breast cancer risk.

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“…Many cohort studies and some meta-analyses failed to develop consistent evidence of the association [1][2][3]. Some studies suggested that short sleep duration was associated with a higher risk of cancer [4,5], while others suggest a long sleep duration [6,7]. However, combined findings showed no association between sleep duration and subsequent cancer incidence [1].…”

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confidence: 99%

Longitudinal sleep duration and subsequent development of cancer in the Japanese population

Kobayashi¹,

Shimbo²

2020

neo

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Sleep duration and risk of cancer in the Mexican American Mano-a-Mano Cohort

Cited by 21 publications

References 38 publications

Night Shift Work, Chronotype, Sleep Duration, and Prostate Cancer Risk: CAPLIFE Study

Night Shift Work, Chronotype, Sleep Duration, and Prostate Cancer Risk: CAPLIFE Study

Sleep duration and breast cancer incidence: results from the million women study and a meta-analysis of published prospective studies

Longitudinal sleep duration and subsequent development of cancer in the Japanese population

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