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Table 1 Definition of the indicators of socioeconomic position used in this study

From: Socioeconomic patterns in the use of public and private health services and equity in health care

Education1 Social Class of the person of reference2 Monthly household income3
Tertiary education I–II More than 1800 euros
Second stage of tertiary education Legislators, senior officials and mangers More than 6000 euros
First stage of tertiary education Professionals 3601 to 6000 euros
  Technicians and associated professionals 1801 to 3600 euros
Upper secondary education   
  III 1201 a 1800 euros
Lower secondary, or second stage of basic education Clerks  
  Administrative personnel 901 a 1200 euros
No education or primary education Service and sales workers  
Primary education or first stage of basic education Self-employed Up to 900 euros
Pre-primary education Supervisors 601 to 900 euros
No education at all   361 to 600 euros
  IV Less than 360 euros
  Skilled manual workers  
  Semi-skilled manual workers  
  Unskilled manual workers  
  1. 1. Based on highest academic diploma received.
  2. 2. The question referred to current or last occupation held by the person of reference (the one who contributed the largest income to the household). Occupation was coded according to the 1994 National Classification of Occupations and was assigned to a social class based on the classification of the Spanish Society of Epidemiology17.
  3. 3. The question referred to the monthly income of all household members, whatever the source of the income, after tax deductions. Respondents had to choose one alternative from eight income ranges.