The DOI matches its Crossref record; 47 of the 47 references it cites were found in a registry or an index.
Increased Breast Cancer Risk among Women Who Work Predominantly at Night
Abstract
Irregular working hours, including working at night, have serious psychological and physiological effects. In a nationwide population-based case-control study, we investigated the breast cancer risk among 30- to 54-year-old Danish women who worked predominantly at night. Individual employment histories were reconstructed back to 1964 for each of 7035 women with breast cancer and their individually matched controls from the records of a nationwide pension scheme with compulsory membership. Odds ratios, including 5 years of induction time and adjusted for socio-economic status, age at the birth of first and last child and number of children, were estimated by conditional logistic regression analysis. The odds ratio for breast cancer among women who worked at night at least half of a year was 1.5 (95% confidence interval, 1.2 to 1.7), and there was a tendency to increasing odds ratio by increasing duration of nighttime employment.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“Epidemiological studies have revealed that individuals who work night-shifts are at higher risk for developing cancer (Hansen, 2001; Kloog et al., 2009; Megdal et al., 2005; Schernhammer et al., 2006; Schernhammer et al., 2001; Viswanathan et al., 2007) or display poorer cancer prognosis (Lis et al., 2003).”
From Circadian Rhythm Disruption Promotes Lung Tumorigenesis (2016) · cites this paper as Hansen, 2001
In the citing paper
“Observational studies consistently suggest positive associations of night shift work and cardiovascular disease (CVD)2 and cancer risk.3-18”
From Total and Cause-Specific Mortality of U.S. Nurses Working Rotating Night Shifts (2015) · cites this paper as [3]
Citations
Cites
Developmental Effects of Endocrine-Disrupting Chemicals in Wildlife and Humans
Colborn, T., Saal, F. S. V., & Soto, A. M. (1993) · Environmental Health Perspectives · doi:10.1289/ehp.93101378 · Cited by 3,570
Cancer Epidemiology and Prevention
Schottenfeld, D. (2006) · doi:10.1093/acprof:oso/9780195149616.001.0001 · Cited by 3,376
Light Suppresses Melatonin Secretion in Humans
Lewy, A. J., Wehr, T. A., Goodwin, F. K., Newsome, D. A., & Markey, S. P. (1980) · Science · doi:10.1126/science.7434030 · Cited by 1,913
Brzezinski, A. (1997) · New England Journal of Medicine · doi:10.1056/nejm199701163360306 · Cited by 1,549
Alcohol and Breast Cancer in Women
Smith‐Warner, S. A., Spiegelman, D. L., Yaun, S., van den Brandt, P. A., Folsom, A. R., Goldbohm, R. A., Graham, S., Holmberg, L., Howe, G. R., Marshall, J. R., et al. (1998) · JAMA · doi:10.1001/jama.279.7.535 · Cited by 945
Proportion of Breast Cancer Cases in the United States Explained by Well-Established Risk Factors
Madigan, M. P., Ziegler, R. G., Bénichou, J., Byrne, C., & Hoover, R. N. (1995) · JNCI Journal of the National Cancer Institute · doi:10.1093/jnci/87.22.1681 · Cited by 654
Health and safety problems associated with long working hours: a review of the current position
Spurgeon, A., Harrington, J. M., & Cooper, C. L. (1997) · Occupational and Environmental Medicine · doi:10.1136/oem.54.6.367 · Cited by 532 · cited 1×
“16 The highest status (1) includes corporate managers and academics; group (2) includes proprietors and managers of small businesses and teachers; group (2) includes technicians and nurses; group (3) includes skilled workers; group (5) includes unskilled workers.”
BackgroundDevelopmental Effects of Endocrine-Disrupting Chemicals in Wildlife and Humans
Colborn, T. L., Saal, F. S. V., & Soto, A. M. (1993) · Environmental Health Perspectives · doi:10.2307/3431890 · Cited by 450
Miettinen, H., Lehto, S., Saikku, P., Haffner, S. M., Rönnemaa, T., Pyörälä, K., & Laakso, M. (1996) · European Heart Journal · doi:10.1093/oxfordjournals.eurheartj.a014934 · Cited by 447
Breast Cancer Epidemiology: Summary and Future Directions
Kelsey, J. L. (1993) · Epidemiologic Reviews · doi:10.1093/oxfordjournals.epirev.a036112 · Cited by 344
Research works printed but not linked: 6
- Kerenyi, 1990, Drug Metabol Drug Interact, 8, 313
- 1998, Copenhagen, 1-, 96
- Oksbjerg, 1997, Ugeskr Laeger, 159, 7134
- Shah, 1984, Cancer Res, 44, 3403
- Mhatre, 1984, J Natl Cancer Inst, 72, 1411
- Blask, 1997, Cancer Res, 57, 1909
Cited by
Sorted by citations
Fu, L., Pelicano, H., Liu, J., Huang, P., & Lee, C. C. (2002) · Cell · doi:10.1016/s0092-8674(02)00961-3 · Cited by 1,268
Health disorders of shift workers
Knutsson, A. (2003) · Occupational Medicine · doi:10.1093/occmed/kqg048 · Cited by 1,218
A clockwork web: circadian timing in brain and periphery, in health and disease
Hastings, M. H., Reddy, A. B., & Maywood, E. S. (2003) · Nature reviews. Neuroscience · doi:10.1038/nrn1177 · Cited by 1,223
Rotating night shifts and risk of breast cancer in women participating in the nurses׳ health study
Schernhammer, E. S., Laden, F., Speizer, F. E., Willett, W. C., Hunter, D. J., Kawachi, I., & Colditz, G. A. (2001) · JNCI Journal of the National Cancer Institute · doi:10.1093/jnci/93.20.1563 · Cited by 1,142
Mammalian circadian biology: elucidating genome-wide levels of temporal organization
Lowrey, P. L., & Takahashi, J. S. (2004) · Annual Review of Genomics and Human Genetics · doi:10.1146/annurev.genom.5.061903.175925 · Cited by 976
Metadata
- Authors
- Hansen, J.
- Affiliations
- Danish Cancer Society (DK)
- Corresponding author
- Hansen, Johnni
- Venue
- Epidemiology
- Published
- 2001-01
- Volume
- 12
- Issue
- 1
- Pages
- 74-77
- ISSN
- 1044-3983 (ISSN-L)
- OpenAlex
- W1973507159
- Cited by
- 503
- References
- 47
- Citations by year
- 2026: 2 · 2025: 7 · 2024: 7 · 2023: 14 · 2022: 9 · 2021: 14 · 2020: 23 · 2019: 19 · 2018: 24 · 2017: 24 · 2016: 20 · 2015: 26 · 2014: 22 · 2013: 29 · 2012: 31
- FWCI
- 23.49
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Epidemiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Health Sciences › Medicine › Oncology › Cancer Risks and Factors
- Keywords
- breast cancer, night work, shift work, irregular working hours, occupational risk factors, women
- MeSH terms
- Adult, Breast Neoplasms, Circadian Rhythm, Denmark, Employment, Female, Humans, Middle Aged, Personnel Staffing and Scheduling, Risk Factors, Work Schedule Tolerance, Odds Ratio, Case-Control Studies
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
