title: [Tobacco and alcohol consumption according to workday in Spain].
abstract: OBJECTIVE
  To examine the association between smoking and alcohol consumption and the type of working day in the Spanish population
  
  
  METHODS
  Cross-sectional study among employees residing in Spain aged >18 years (N=8,736). We took data from the National Health Survey (2011-2012). Information was collected on the type of working day (morning, afternoon, evening, part-time, reduced hours, and shift-work) and smoking and drinking habits. Demographic characteristics and health- and work-related factors were also taken into account. Adjusted odds ratios (aOR) and 95% confidence intervals (95%CI) were calculated through log-binomial regressions.
  
  
  RESULTS
  Among respondents, 32.1% smoked regularly, especially those working the night shift (43.5%). Moderate alcohol consumption was found in 54.8% of workers and excessive consumption in 1.5%. Most of the moderate and heavy drinkers worked part-time, with 57.6% and 1.8% respectively. The aOR of being a smoker was higher among night workers (OR=1.58; 95% CI: 1.01-2.46). None of the work shifts were significantly associated with alcohol consumption.
  
  
  CONCLUSIONS
  Night shift work was associated with regular smoking. This collective of workers should be monitored closely by occupational health services and regularly undergo programs to control tobacco consumption and smoking-related diseases. Additional research to elucidate the reasons for this association could help to achieve preventive and therapeutic success.
authors.affiliation: Hospital Universitario Central de Asturias, Servicio de Salud del Principado de Asturias, Oviedo, España.
authors.forename: Vanesa
authors.initials: V
authors.lastname: García-Díaz
authors.affiliation: Departamento de Medicina, Facultad de Medicina y Ciencias de la Salud, Universidad de Oviedo, Oviedo, España.
authors.forename: Ana
authors.initials: A
authors.lastname: Fernández-Feito
authors.affiliation: Great Western Hospital of Swindon, UK National Health System, Swindon, Reino Unido.
authors.forename: Lucía
authors.initials: L
authors.lastname: Arias
authors.affiliation: Departamento de Medicina, Facultad de Medicina y Ciencias de la Salud, Universidad de Oviedo, Oviedo, España; Instituto Universitario de Oncología del Principado de Asturias, Oviedo, España. Electronic address: lanaalberto@uniovi.es.
authors.forename: Alberto
authors.initials: A
authors.lastname: Lana
mesh_terms: D000328:Adult; D000428:Alcohol Drinking / Q000453:epidemiology*; D000437:Alcoholism / Q000453:epidemiology; D003430:Cross-Sectional Studies; D005260:Female; D006301:Health Services Needs and Demand; D006306:Health Surveys; D006801:Humans; D007588:Job Satisfaction; D008297:Male; D009786:Occupational Health Services / Q000458:organization & administration; D009790:Occupations; D012907:Smoking / Q000453:epidemiology; D013030:Spain / Q000453:epidemiology; D013997:Time Factors; D064424:Tobacco Use / Q000453:epidemiology*; D014940:Work Schedule Tolerance
keywords: Alcohol drinking; Consumo de alcohol; Fumar; Occupational health; Salud ocupacional; Smoking; Tolerancia al horario de trabajo; Trabajo; Work; Work schedule tolerance