title: [Determinants of medical consumption in older subjects covered by national health insurance].
abstract: OBJECTIVE
  Investigating to what extent the medical consumption of persons aged 50-80 yr covered by the Dutch National Health Service is explained by their health condition and sociodemographic factors like age, gender, marital status and education.
  
  
  METHODS
  Questionnaire.
  
  
  METHODS
  15 general practices (3 in each of 5 municipalities) in the provinces Drenthe and Overijssel, the Netherlands.
  
  
  METHODS
  A one-time prestructured health questionnaire (in writing) was sent to 1875 persons aged 50-80 yr covered by the Dutch National Health Service (125 randomly selected persons from each practice). The response was 55% (n = 1022). The objective and subjective health conditions and the sociodemographic factors were tested in relation to the medical consumption (visiting a general practitioner, a specialist, or hospitalization) with a type of regression analysis with which both direct and indirect relations with medical consumption could be calculated.
  
  
  RESULTS
  The medical consumption was explained for 17% by the health condition, the age and the level of education of patients. Elderly, single women with little education had the highest medical consumption. This was mainly determined by the higher probability of health problems in this group. Apart from this there was an age-related increase in medical consumption.
  
  
  CONCLUSIONS
  Only part of the medical consumption can be explained by the main literature determinants of medical consumption. Refinement in research can be achieved by relating the care demand to research into referral behaviour of general practitioners and specialists, which can result in supplementary knowledge on determinants of medical consumption.
authors.affiliation: Rijksuniversiteit Groningen, Faculteit der Geneeskunde, vakgroep Gezondheidswetenschappen.
authors.forename: J R
authors.initials: JR
authors.lastname: Boelema
authors.forename: J W
authors.initials: JW
authors.lastname: Groothoff
authors.forename: D
authors.initials: D
authors.lastname: Post
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D003710:Demography; D005260:Female; D006296:Health Services / Q000191:economics / Q000706:statistics & numerical data*; D006304:Health Status; D006801:Humans; D008019:Life Style; D008297:Male; D008875:Middle Aged; D009313:National Health Programs; D009426:Netherlands; D012737:Sex Factors; D011795:Surveys and Questionnaires
vernacular_title: Determinanten van medische consumptie bij oudere ziekenfondsverzekerden.