title: Workplace social capital and all-cause mortality: a prospective cohort study of 28,043 public-sector employees in Finland.
abstract: OBJECTIVE
  We examined the association between workplace social capital and all-cause mortality in a large occupational cohort from Finland.
  
  
  METHODS
  We linked responses of 28 043 participants to surveys in 2000 to 2002 and in 2004 to national mortality registers through 2009. We used repeated measurements of self- and coworker-assessed social capital. We carried out Cox proportional hazard and fixed-effects logistic regressions.
  
  
  RESULTS
  During the 5-year follow-up, 196 employees died. A 1-unit increase in the mean of repeat measurements of self-assessed workplace social capital (range 1-5) was associated with a 19% decrease in the risk of all-cause mortality (age- and gender-adjusted hazard ratio [HR] = 0.81; 95% confidence interval [CI] = 0.66, 0.99). The corresponding point estimate for the mean of coworker-assessed social capital was similar, although the association was less precisely estimated (age- and gender-adjusted HR = 0.77; 95% CI = 0.50, 1.20). In fixed-effects analysis, a 1-unit increase in self-assessed social capital across the 2 time points was associated with a lower mortality risk (odds ratio = 0.81; 95% CI = 0.55, 1.19).
  
  
  CONCLUSIONS
  Workplace social capital appears to be associated with lowered mortality in the working-aged population.
authors.affiliation: Department of Society, Human Development, and Health, Harvard School of Public Health, Boston, MA, USA. tuula.oksanen@ttl.fi
authors.forename: Tuula
authors.initials: T
authors.lastname: Oksanen
authors.forename: Mika
authors.initials: M
authors.lastname: Kivimäki
authors.forename: Ichiro
authors.initials: I
authors.lastname: Kawachi
authors.forename: S V
authors.initials: SV
authors.lastname: Subramanian
authors.forename: Soshi
authors.initials: S
authors.lastname: Takao
authors.forename: Etsuji
authors.initials: E
authors.lastname: Suzuki
authors.forename: Anne
authors.initials: A
authors.lastname: Kouvonen
authors.forename: Jaana
authors.initials: J
authors.lastname: Pentti
authors.forename: Paula
authors.initials: P
authors.lastname: Salo
authors.forename: Marianna
authors.initials: M
authors.lastname: Virtanen
authors.forename: Jussi
authors.initials: J
authors.lastname: Vahtera
mesh_terms: D000328:Adult; D000368:Aged; D002908:Chronic Disease; D005260:Female; D005387:Finland / Q000453:epidemiology; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D009026:Mortality; D016272:Occupational Health / Q000706:statistics & numerical data; D011446:Prospective Studies; D017150:Public Sector / Q000706:statistics & numerical data*; D012944:Social Support; D012959:Socioeconomic Factors; D017132:Workplace / Q000523:psychology* / Q000706:statistics & numerical data*