title: Roles of age, length of service and job in work-related injury: a prospective study of 63,620 person-years in female workers.
abstract: BACKGROUND
  The roles of age, length of service and job in various work-related injury types are unknown and deserve investigations among female workers. This study assessed their roles in the occurrence of injury.
  
  
  METHODS
  Three-year prospective study of all 22,952 permanently employed women at the French national railway company: 63,620 person-years, 756 injuries with working days lost, coded using the company's injury classification derived from that of the French health insurance scheme. We investigated the incidence of four types of injury: fall on same level, fall to lower level, materials/equipment/objects handling, and other injuries. Data were analyzed using negative binomial regression.
  
  
  RESULTS
  Workers aged <25 were subject to a higher risk for all types of injuries. Older workers (45-55 years) were subject to a higher injury risk for fall on same level and fall to lower level. For fall on same level as for fall to lower level the relative risk decreased steadily with increasing length of service with the company, from 1.60 for 1 year to 0.50-0.60 for ≥30 years. For injuries due to materials/equipment/objects handling the relative risk decreased from 1.05 for one year to 0.49 for 5-9 years, and then increased to about 1.50 for 20-29 years and ≥30 years.
  
  
  CONCLUSIONS
  Younger and shorter lengths of service were at risk for various types of injuries. Higher length of service was at risk for injury due to materials/equipment/objects handling. Preventive measures should consider the respective risks associated with age, years of employment and job.
authors.affiliation: INSERM, U669, Paris, Univ Paris-Sud and Univ Paris Descartes, Paris, France.
authors.forename: Nearkasen
authors.initials: N
authors.lastname: Chau
authors.forename: Dominique
authors.initials: D
authors.lastname: Dehaene
authors.forename: Lahoucine
authors.initials: L
authors.lastname: Benamghar
authors.forename: Eve
authors.initials: E
authors.lastname: Bourgkard
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Mur
authors.forename: Christian
authors.initials: C
authors.lastname: Touron
authors.forename: Pascal
authors.initials: P
authors.lastname: Wild
mesh_terms: D000058:Accidental Falls / Q000706:statistics & numerical data*; D000062:Accidents, Occupational / Q000706:statistics & numerical data*; D000328:Adult; D000367:Age Factors; D005260:Female; D005602:France / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D017770:Lifting / Q000009:adverse effects*; D008875:Middle Aged; D060051:Occupational Injuries / Q000453:epidemiology* / Q000209:etiology; D011446:Prospective Studies; D011890:Railroads / Q000706:statistics & numerical data*; D012307:Risk Factors; D013997:Time Factors; D055815:Young Adult
keywords: experience; female workers; job; older age; work-related injury; younger age