[Chronic psychotropic drugs use in the Canadian labor force: what are the contributions of occupation and work organization conditions?].
BACKGROUND
This study aims to better understand the contributions of occupation and work organization conditions to the development of chronic psychotropic drugs use among workers in Canada.


METHODS
The study is based on a secondary analysis of the longitudinal data of the National Population Health Survey (NPHS) of Statistics Canada which includes five cycles from 1994-1995 to 2002-2003. A panel of 6585 people from 15 to 55 years old and employed at cycle 1 and nested in 1413 neighbourhoods was selected. Multilevel models of regression were estimated on three levels: repeated measures (level 1=24,785 observations) were nested in the individuals (level 2=6585 individuals) and the individuals nested in the local communities (level 3=1413 neighborhoods).


RESULTS
The prevalence of multiple episodes (two episodes and more between cycle 1 and cycle 5) of psychotropic drugs use was 6.7% (95%CI=6.0-7.4%). Only occupation and the number of working hours showed a significant contribution. Family and individual variables like marital status and personality traits (locus of control and sense of coherence) had a significant contribution, in addition to time, gender, age, physical health, number of cigarettes and stressful childhood events.


CONCLUSIONS
Work contributes weakly to the risk of chronic psychotropic drugs use, whereas individual characteristics make a much more important contribution to the phenomenon.
Marchand
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Ecole de relations industrielles, université de Montréal, C.P. 6128, succursale Centre-Ville, Montréal, Québec, H3C 3J7 Canada. alain.marchand@umontreal.ca <alain.marchand@umontreal.ca>
Blanc
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D000293:Adolescent; D000328:Adult; D002170:Canada / Q000453:epidemiology; D002908:Chronic Disease; D004363:Drug Utilization / Q000706:statistics & numerical data; D004651:Employment / Q000458:organization & administration / Q000523:psychology; D005190:Family / Q000523:psychology; D005260:Female; D006306:Health Surveys; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D016272:Occupational Health / Q000706:statistics & numerical data; D009790:Occupations / Q000706:statistics & numerical data; D015995:Prevalence; D011619:Psychotropic Drugs / Q000627:therapeutic use*; D012044:Regression Analysis; D012307:Risk Factors; D012931:Social Environment; D013315:Stress, Psychological / Q000188:drug therapy / Q000453:epidemiology / Q000523:psychology; D016526:Workload / Q000523:psychology / Q000706:statistics & numerical data; D017132:Workplace / Q000458:organization & administration / Q000523:psychology
D011619:Psychotropic Drugs