title: Use of the Internet for health information by the chronically ill.
abstract: BACKGROUND
  Chronic conditions are among the leading causes of death and disability in the United States. The Internet is a source of health information and advice for individuals with chronic conditions and shows promise for helping individuals manage their conditions and improve their quality of life.
  
  
  METHODS
  We assessed Internet use for health information by people who had one or more of five common chronic conditions. We conducted a national survey of adults aged 21 and older, then analyzed data from 1980 respondents who had Internet access and who reported that they had hypertension, diabetes, cancer, heart problems, and/or depression.
  
  
  RESULTS
  Adjusted rates for any Internet use for health information ranged from 33.8% (heart problems only) to 52.0% (diabetes only). A sizable minority of respondents - particularly individuals with diabetes - reported that the Internet helped them to manage their condition themselves, and 7.9% said information on the Internet led them to seek care from a different doctor.
  
  
  CONCLUSIONS
  Use of the Internet for health information by chronically ill patients is moderate. Self-reported effects on choice of treatment or provider are small but noteworthy.
authors.affiliation: Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA. twagner@stanford.edu
authors.forename: Todd H
authors.initials: TH
authors.lastname: Wagner
authors.forename: Laurence C
authors.initials: LC
authors.lastname: Baker
authors.forename: M Kate
authors.initials: MK
authors.lastname: Bundorf
authors.forename: Sara
authors.initials: S
authors.lastname: Singer
mesh_terms: D000328:Adult; D002755:Choice Behavior; D002908:Chronic Disease / Q000523:psychology; D003625:Data Collection / Q000379:methods; D003863:Depression / Q000523:psychology / Q000628:therapy; D003920:Diabetes Mellitus / Q000523:psychology / Q000628:therapy; D034742:Electronic Mail; D005260:Female; D006331:Heart Diseases / Q000523:psychology / Q000628:therapy; D006801:Humans; D006973:Hypertension / Q000523:psychology / Q000628:therapy; D033181:Information Dissemination / Q000379:methods*; D020407:Internet / Q000706:statistics & numerical data*; D008297:Male; D009369:Neoplasms / Q000523:psychology / Q000628:therapy; D010342:Patient Acceptance of Health Care / Q000706:statistics & numerical data*; D010358:Patient Participation / Q000523:psychology / Q000706:statistics & numerical data; D012494:Sampling Studies; D012648:Self Care / Q000706:statistics & numerical data; D011795:Surveys and Questionnaires; D014481:United States