Long working hours and cancer risk: a multi-cohort study.
Br J Cancer
; 114(7): 813-8, 2016 Mar 29.
Article
em En
| MEDLINE
| ID: mdl-26889978
ABSTRACT
BACKGROUND:
Working longer than the maximum recommended hours is associated with an increased risk of cardiovascular disease, but the relationship of excess working hours with incident cancer is unclear.METHODS:
This multi-cohort study examined the association between working hours and cancer risk in 116 462 men and women who were free of cancer at baseline. Incident cancers were ascertained from national cancer, hospitalisation and death registers; weekly working hours were self-reported.RESULTS:
During median follow-up of 10.8 years, 4371 participants developed cancer (n colorectal cancer 393; n lung cancer 247; n breast cancer 833; and n prostate cancer 534). We found no clear evidence for an association between working hours and the overall cancer risk. Working hours were also unrelated the risk of incident colorectal, lung or prostate cancers. Working ⩾55 h per week was associated with 1.60-fold (95% confidence interval 1.12-2.29) increase in female breast cancer risk independently of age, socioeconomic position, shift- and night-time work and lifestyle factors, but this observation may have been influenced by residual confounding from parity.CONCLUSIONS:
Our findings suggest that working long hours is unrelated to the overall cancer risk or the risk of lung, colorectal or prostate cancers. The observed association with breast cancer would warrant further research.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tolerância ao Trabalho Programado
/
Neoplasias
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Br J Cancer
Ano de publicação:
2016
Tipo de documento:
Article