Table 1.
Summarizes general information about websites on inflammatory bowel disease included in the study
| No. | Website title, Organisation | URL | Authority/ownership, state, country | Year created | Last updated | Number of pages | Number of tables | Number of images | Number of illustrations |
| 1 | Inflammatory Bowel Disease (IBD), Mayo Clinic | http://www.mayoclinic.org/diseases-conditions/inflammatory-bowel-disease/basics/definition/con-20034908 | Mayo Foundation for Medical Education and Research, Arizona, United States | 1997 | 04 Feb 2014 | 11 | 0 | 0 | 0 |
| 2 | Inflammatory Bowel Disease Health Center, WebMd | http://www.webmd.com/ibd-crohns-disease/ | WebMD, Inc., Georgia, United States. | 1998 | 06 Sep 2013 | 2 | 0 | 3 | 0 |
| 3 | Inflammatory Bowel Disease (IBD), Center for Disease Control and Prevention (CDC) | http://www.cdc.gov/ibd/ | Centers for Disease Control and Prevention (CDC), Georgia, United States. | 1999 | 04 Sep 2014 | 3 | 0 | 1 | 1 |
| 4 | Inflammatory Bowel Disease, NHS Choices | http://www.nhs.uk/conditions/inflammatory-bowel-disease/pages/introduction.aspx | NHS England, Wakefield, United Kingdom. | 1996 | 29 Apr 2013 | 2 | 0 | 0 | 0 |
| 5 | What are Crohn's and Colitis? Crohn's and Colitis Foundation | http://www.ccfa.org/what-are-crohns-and-colitis/ | Crohns and Colitis Foundation of America, New York, United States. | 1996 | 14 Apr 2014 | 1 | 0 | 1 | 0 |
| 6 | Inflammatory Bowel Disease, KidsHealth | http://kidshealth.org/parent/medical/digestive/ibd.html | Kids Health Organisaion, The Nemours Foundation, Orlando, United States. | 1995 | 27 Jan 2015 | 4 | 0 | 1 | 0 |
| 7 | Inflammatory Bowel Disease (IBD). FamilyDoctor | http://familydoctor.org/familydoctor/en/diseases-conditions/inflammatory-bowel-disease.html | American Academy of Family Physicians, New Jersey, United States. | 1998 | 22 Jan 2015 | 7 | 0 | 0 | 0 |
| 8 | Inflammatory Bowel Disease, Healthline | http://www.healthline.com/health/inflammatory-bowel-disease#Overview1 | Healthline, California, United States. | 2004 | 29 Nov 2011 | 6 | 0 | 0 | 0 |
| 9 | Crohn's and Colitis, Australia | https://www.crohnsandcolitis.com.au/about-crohns-colitis/inflammatory-bowel-disease/ | Crohn's and Colitis Australia, Victoria, Australia. | 2009 | 24 Jul 2014 | 3 | 0 | 1 | 0 |
| 10 | Crohn's and Colitis UK | http://www.crohnsandcolitis.org.uk/information-and-support/information-about-ibd/what-is-IBD | Crohn's and Colitis UK, United Kingdom. | 2010 | 13 Nov 2014 | 2 | 0 | 1 | 0 |
| 11 | Inflammatory Bowel Disease (IBD) (Intestinal Problems of IBD), MedicineNet | http://www.medicinenet.com/inflammatory_bowel_disease_intestinal_problems/article.htm | Medicine.Net.com, WebMed Network, New York, United States. | 1995 | 6 Sep 2013 | 12 | 0 | 27 | 0 |
| 12 | Inflammatory Bowel Disease Center, Cedars-Sinai | http://www.cedars-sinai.edu/Patients/Programs-and-Services/Inflammatory-Bowel-Disease-Center/ | Cedars-Sinai Medical Center, California, United States. | 1992 | 5 Jul 2013 | 2 | 0 | 0 | 0 |
| 13 | Inflammatory Bowel Diseases Symptoms and Treatment: Livescience | http://www.livescience.com/39880-inflammatory-bowel-disease.html | Tanya Lewis, LiveScience Contributor, New York, United States. | 2001 | 10 Apr 2014 | 11 | 0 | 1 | 0 |
| 14 | Inflammatory Bowel Diseases Program, Penn Medicine.org | http://www.pennmedicine.org/gastroenterology/patient-care/gi-diseases/inflammatory-bowel-disease-ibd/ | Penn Medicine, Pennsylvania, United Stats. | 2003 | 6 Nov 2014 | 4 | 0 | 0 | 0 |
| 15 | Inflammatory Bowel Diseases Support Groups, IBDsupport.org | http://www.ibdsupport.org/ | IBD support.org, Utah, United States. | 2011 | 30 May 2014 | 2 | 0 | 0 | 0 |
| 16 | Inflammatory Bowel Disease (IBD), ABC Health and wellbeing | http://www.abc.net.au/health/library/stories/2012/02/22/3435688.htm | Australian Broadcasting Corporation, NSW, Australia. | 2001 | 3 Dec 2014 | 4 | 0 | 1 | 0 |
| 17 | Inflammatory Bowel Disease (IBD), GIKids | http://www.gikids.org/content/7/en/IBD | GIKids and The NASPGHAN Foundation, Pennsylvania, United States. | 2009 | 11 Jun 2013 | 2 | 0 | 1 | 0 |
| 18 | Inflammatory Bowel Disease, Vitamin D Council | https://www.vitamindcouncil.org/health-conditions/inflammatory-bowel-disease/ | The Vitamin D Council, California, United States. | 2007 | 17 Jun 2011 | 6 | 0 | 0 | 0 |
| 19 | Inflammatory Bowel Disease Symptoms and Diagnosis, Seattle children's | http://www.seattlechildrens.org/medical-conditions/digestive-gastrointestinal-conditions/ibd-symptoms/ | Children's Hospital and Regional Med. Ctr, Washington, United States. | 1993 | 23 Apr 2014 | 2 | 0 | 0 | 0 |
| 20 | Crohn's Disease, Patient.co.uk | http://www.patient.co.uk/health/crohns-disease-leaflet | Patient, Patient information Publications, Leeds, United Kingdom. | 1997 | 05 Mar 2013 | 8 | 0 | 0 | 1 |
| 21 | Patient Information Crohn Disease (Beyond and the Basics), Uptodate | http://www.uptodate.com/contents/crohn-disease-beyond-the-basics | UpToDate, Wolters Kluwer Health, Illinois, United States. | 1998 | 29 Jul 2014 | 5 | 0 | 0 | 0 |
| 22 | Crohn's Disease, Centre for digestive diseases | http://www.cdd.com.au/pages/disease_info/crohns_disease.html | The Centre for Digestive Diseases, NSW, Australia. | 08 Jul 2013 | 4 | 0 | 0 | 0 | |
| 23 | Crohn's Disease, Patients: British Society for Gastroenterology | http://www.bsg.org.uk/patients/general/crohn-s-disease.html | British Society of Gastroenterology, London, United Kingdom. | 1996 | 05 Aug 2014 | 6 | 0 | 0 | 0 |
| 24 | Crohn's Disease, Bupa | http://www.bupa.co.uk/health-information/directory/c/crohns-disease | The British United Provident Association Ltd, London, United Kingdom | 1996 | 16 Jun 2014 | 6 | 0 | 0 | 1 |
| 25 | Crohn's Disease, University of Maryland Medical Center | http://umm.edu/health/medical/reports/articles/crohns-disease | University of Maryland Medical Center, Maryland, United States | 1996 | 19 Sep 2013 | 20 | 0 | 0 | 0 |
| 26 | Crohn's Disease, Symptoms, Diagnosis, Treatment, Southern Cross | https://www.southerncross.co.nz/AboutTheGroup/HealthResources/MedicalLibrary/tabid/178/vw/1/ItemID/523/Crohns-disease-symptoms-diagnosis-treatment.aspx | Southern Cross Healthcare Group; Auckland, New Zealand. | 1998 | 01 Feb 2015 | 5 | 0 | 0 | 0 |
| 27 | Crohn's Disease, American family physician | http://www.aafp.org/afp/2011/1215/p1379.html | American Academy of Family Physicians, Kansas, United States | 1995 | 02 Jul 2014 | 2 | 0 | 0 | 0 |
| 28 | What is Crohn's Disease? What Causes Crohn's Disease? MNT | http://www.medicalnewstoday.com/articles/151620.php | Christian Nordquist, MNT, Sussex, United Kingdom. | 2003 | 02 Jan 2014 | 7 | 0 | 0 | 0 |
| 29 | Crohn's Disease, Netdoctor | http://www.netdoctor.co.uk/diseases/facts/crohnsdisease.htm | NetDoctor.co. Ltd, London, United Kingdom. | 1998 | 24 Aug 2014 | 7 | 0 | 1 | 0 |
| 30 | Crohn's Disease, UCSF medical center | http://www.ucsfhealth.org/conditions/crohns_disease/ | University of California San Francisco Medical Center, California, United States. | 2000 | 04 Jan 2012 | 2 | 0 | 0 | 0 |
| 31 | Crohn's Disease Symptoms and Treatment, US.news Wellness | http://health.usnews.com/health-news/health-wellness/articles/2013/08/03/crohns-disease-symptoms-and-treatment | Guido Zanni, US News, New York, United States, | 1995 | 22 Jan 2015 | 3 | 0 | 0 | 0 |
| 32 | What are the treatments for Crohn's disease? Beth Israel Deaconess Medical Center | http://www.bidmc.org/Centers-and-Departments/Departments/Digestive-Disease-Center/Inflammatory-Bowel-Disease-Program/Crohns-Disease/What-are-the-treatments-for-Crohns-disease.aspx | Beth Israel Deaconess Medical Center, Massachusetts, United States. | 2002 | 16 Mar 2006 | 15 | 0 | 4 | 1 |
| 33 | Diagnosing Crohn's, Crohn's and Me. | http://www.crohnsandme.com/crohns-information/crohns-disease-diagnosis.aspx | UCB Multinational Biopharmaceutical Company, Brussels, Belgium | 2005 | 29 Apr 2014 | 9 | 1 | 1 | 1 |
| 34 | Understanding Crohn's Disease, Crohn's and Colitis. | http://www.crohnsandcolitisinfo.com/Crohns/What-is-Crohns-Disease | Crohn's and Colitis, Illinois, United States | 2011 | 02 Oct 2014 | 8 | 0 | 1 | 1 |
| 35 | Learning About Crohn's Disease, National Human Genome Research Institute | http://www.genome.gov/25521854 | National Human Genome Research Institute, Massachusetts, United States | 27 Sep 2011 | 2 | 0 | 0 | 0 | |
| 36 | Crohn's Disease, UPMC Life Changing Medicine | http://www.upmc.com/services/digestive-disorders-center/services/ibd/conditions/pages/crohns-disease.aspx | UPMC Digestive Disorders Center, UPMC Presbyterian, Pennsylvania, United States | 1999 | 04 Mar 2014 | 3 | 0 | 0 | 0 |
| 37 | Crohn's Disease, Cincinnati Children's | http://www.cincinnatichildrens.org/health/c/crohns/ | Cincinnati Children's Hospital Medical Center, Ohio, United States | 1998 | 15 may 2012 | 4 | 0 | 1 | 0 |
| 38 | Crohn's Disease, Cleveland clinic | http://my.clevelandclinic.org/health/diseases_conditions/hic_Inflammatory_Bowel_Disease_IBD_QandA/hic_Crohns_Disease | The Cleveland Clinic Foundation, Ohio, United States | 1998 | 02 Jan 2015 | 2 | 0 | 0 | 0 |
| 39 | Treatment of Crohn's Disease, UNC Multidisciplinary Center for IBD Research and Treatment | http://www.med.unc.edu/gi/specialties/ibd/about-ibd/treatment-of-ibd-1/treatment-of-crohns-disease | UNC, School of Medicine, North Carolina, United States | 1986 | 07 Mar 2013 | 9 | 0 | 9 | 10 |
| 40 | Crohn's Disease, Emedicine health | http://www.emedicinehealth.com/crohn_disease/article_em.htm | EMedicine.com Inc, WebMD Network, Georgia, United States | 2003 | 06 Sep 2013 | 10 | 0 | 0 | 1 |
| 41 | Understanding Crohn's Disease and Ulcerative Colitis. Australian Gastroenterology Institute. | http://www.nevdgp.org.au/info/gastro/crohns.htm | Australian Gastroenterology Institute, Digestive Health Foundation, New South Wales, Australia | 02 Jun 2014 | 3 | 0 | 0 | 0 | |
| 42 | Crohn's Disease, Health Centers | http://www.drweil.com/drw/u/ART00339/Crohns-Disease.html | Weil's Foundation, Arizona, United States | 1999 | 16 Jan 2012 | 3 | 0 | 1 | 0 |
| 43 | Crohn's Disease- An Overview, the Royal Children's Hospital Melbourne | http://www.rch.org.au/kidsinfo/fact_sheets/Crohns_Disease_an_overview/ | The Royal Children's Hospital Melbourne, Victoria, Australia | 19 Jun 2014 | 3 | 0 | 0 | 0 | |
| 44 | Fighting Inflammatory Bowel Disease Together, the Irish Society for Colitis and Crohn's Disease | http://www.iscc.ie/page.php?id=18&title=What%20is%20IBD | The Irish Society for Colitis and Crohn's Disease, Dublin, United Kingdom | 2000 | 05 Jan 2014 | 4 | 0 | 10 | 1 |
| 45 | Crohn's Disease Diagnosis, New health guide | http://www.newhealthguide.org/Crohn%27s-Disease-Diagnosis.html | New Health Guide, United States | 2013 | 10 Feb 15. | 3 | 0 | 1 | 0 |
| 46 | Crohn's Disease, HealthDay. | http://consumer.healthday.com/encyclopedia/digestive-health-14/digestion-health-news-200/crohn-s-disease-644392.html | HealthDay, New York, United States | 2002 | 15 Apr 2014 | 4 | 0 | 0 | 0 |
| 47 | Ulcerative Colitis, Wikipedia | http://en.wikipedia.org/wiki/Ulcerative_colitis | Wikimedia Foundation, Inc, California, United States | 2001 | 08 May 2012 | 14 | 6 | 6 | 1 |
| 48 | Living with UC, Do You Know Your Treatment Options? | http://www.livingwithuc.ca/ | Janssen Inc., Canada | 2010, | May 2014 | 8 | 4 | 0 | 2 |
| 49 | What Is Ulcerative Colitis? Everyday Health | http://www.everydayhealth.com/conditions/ulcerative-colitis | Everyday Health Media, LLC, New York, United States | 2004 | 10 Feb 2014 | 14 | 0 | 0 | 0 |
| 50 | What Is Ulcerative Colitis? News Medical | http://www.news-medical.net/health/What-is-Ulcerative-Colitis.aspx | The AZO Network, New South Wales, Australia | 2004 | 26 Feb 2015 | 2 | 0 | 0 | 0 |
| 51 | Crohn's Disease and Ulcerative Colitis, Better Health Channel | http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/Crohn%27s_disease_and_ulcerative_colitis | Crohn's and Colitis, The State Government of Victoria, Victoria, Australia | 2007 | 28 Sep 2014 | 4 | 0 | 0 | 0 |
| 52 | Ulcerative Colitis, Jackson Siegelbaum Gastroenterology | http://gicare.com/diseases/ulcerative-colitis/ | Jackson Gastroenterology Ltd, Central Pennsylvania, Pennsylvania, United States | 1997 | 07 April 2014 | 3 | 0 | 0 | 3 |
| 53 | Ulcerative Colitis, Crohn's and Colitis Canada | http://www.crohnsandcolitis.ca/site/c.dtJRL9NUJmL4H/b.9012449/k.C223/Ulcerative_Colitis.htm | Crohn's and Colitis, Canada | 2008 | 19 Dec 2013 | 12 | 0 | 0 | 1 |
| 54 | Ulcerative Colitis, Healthgrades | http://www.healthgrades.com/conditions/ulcerative-colitis | HealthGrades, Inc, Colorado, United States | 1999 | 08 May 2014 | 4 | 0 | 0 | 0 |
| 55 | Information for Those with Ulcerative Colitis, Colitis UK | http://www.ulcerativecolitis.org.uk/ | Colitis UK, Buckinghamshire, United Kingdom | 2005 | 20 Oct 2013 | 10 | 0 | 0 | 0 |
| 56 | Colitis and Chronic Ulcerative Colitis, Virginia Mason | https://www.virginiamason.org/ColitisandChronicUlcerativeColitis | Virginia Mason Medical Center, Washington, United States | 1998 | 07 May 2008 | 3 | 0 | 0 | 0 |
| 57 | Ulcerative Colitis, GastroNet | http://www.gastro.net.au/diseases/ulcerativecolitis.html | GastroNet Australia Pty Ltd, Canberra, Australia | 2009 | 12 May 2014 | 5 | 2 | 4 | 5 |
| 58 | Ulcerative Colitis, Ulcerative Colitis Net. | http://www.ulcerativecolitis.net/ | Serovera, Florida, United States | 2000 | 28 Feb 2014 | 9 | 3 | 1 | 0 |
| 59 | Inflammatory Bowel Disease, Lab Tests Online | http://labtestsonline.org/understanding/conditions/inflammatory-bowel | American Association for Clinical Chemistry (AACC), Washington, DC, United States | 2001 | 08 Nov 2010 | 3 | 3 | 0 | 2 |
| 60 | Inflammatory Bowel Disease Fact Sheet, Womenshealth.gov | http://www.womenshealth.gov/publications/our-publications/fact-sheet/inflammatory-bowel-disease.html | Womenshealth.gov, the US Department of Health and Human Services | 1995 | 29 Nov 2014 | 3 | 0 | 0 | 3 |
| 61 | Inflammatory Bowel Disease (IBD), Innerbody | http://www.innerbody.com/diseases-conditions/ibd | InnerBody, California, United States | 1996 | 02 Oct 2012 | 5 | 2 | 3 | 4 |
| 62 | Inflammatory Bowel Disease (IBD), Rightdiagnosis | http://www.rightdiagnosis.com/i/inflammatory_bowel_disease/intro.htm | Rightdiagnosis. com, United States | 2005 | 11 Jul 2013 | 2 | 1 | 5 | 0 |
| 63 | Inflammatory Bowel Disease, Lifescript.com | http://www.lifescript.com/health/centers/digestive/related_conditions/inflammatory_bowel_disease.aspx | LifeScript, California, United States | 1999 | 05 May 2014 | 1 | 5 | 2 | 1 |
| 64 | Inflammatory Bowel Disease (IBD), MUSC Health | http://www.ddc.musc.edu/public/symptomsDiseases/diseases/smallBowel/IBD.html | Digestive Disease Center, The Medical University of South Carolina, South Carolina, United States | 1990 | 21 May 2013 | 1 | 1 | 1 | 0 |
| 65 | Inflammatory Bowel Disease (IBD): Ulcerative Colitis, Crohn's Disease, New York-Presbyterian Digestive Diseases. | http://nyp.org/services/digestive/ibd.html | NewYork-Presbyterian Hospital, New York, United States | 1998 | 24 Aug 2007 | 1 | 2 | 0 | 0 |
| 66 | Inflammatory Bowel Disease, Human Diseases and Conditions Forum. | http://www.humanillnesses.com/original/Her-Kid/Inflammatory-Bowel-Disease.html | Human Diseases and Conditions Forum, United States | 2006 | 16 Oct 2013 | 2 | 3 | 1 | 0 |
| 67 | Facts About Crohn's Disease, US. Food and Drug Administration | http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm107358.htm | US Food and Drug Administration, The US Department of Health and Human Services, Maryland, United States | 1997 | 14 Oct 2014 | 1 | 3 | 2 | 1 |
| 68 | Crohn's Disease Symptoms and warning Signs, SymptomFind | http://www.symptomfind.com/diseases-conditions/crohns-disease-symptoms-warning-signs/ | Symptom.Find.Com. United States | 2008 | 21 Jun 2014 | 3 | 2 | 1 | 2 |
| 69 | Crohn's Disease-At a Glance, SixPartsWater.Org | http://www.sixpartswater.org/knowledge-centre/crohns-disease/glance | SixPartsWater.Org, United Kingdom | 2007 | 02 Oct 2012 | 2 | 1 | 3 | 0 |
| 70 | Ulcerative Colitis, eMedTV | http://colitis.emedtv.com/ulcerative-colitis/ulcerative-colitis.html | eMedTV, Washington, United States | 2005 | 07 May 2014 | 3 | 0 | 5 | 2 |
| 71 | Crohn's Disease, Department of Surgery, University of California. | http://colorectal.surgery.ucsf.edu/conditions--procedures/crohns-disease.aspx | Department of Surgery, University of California, California, United States | 1986 | 10 Oct 2013 | 1 | 1 | 4 | 1 |
| 72 | Crohn's Disease, the National Institute of Diabetes and Digestive and Kidney Diseases | http://www.niddk.nih.gov/health-information/health-topics/digestive-diseases/crohns-disease/Pages/facts.aspx | The National Institutes of Diabetes and Digestive and Kidney Diseases, NIDDK, Maryland, United States | 2002 | 20 Jul 2014 | 1 | 1 | 2 | 0 |
| 73 | Crohn's Disease, Patient Education Center | http://www.patienteducationcenter.org/articles/crohns-disease/ | Patient Education Center, Harvard Medical School, Harvard Medical Publications, Massachusetts, United States | 2003 | 20 Jun 2014 | 2 | 0 | 3 | 0 |
| 74 | Crohn's Disease Information, alot health | http://health.alot.com/conditions/crohns-disease-information--163 | Alot Health.Com, Arkansas, United States | 1994 | 15 Aug 2014 | 3 | 1 | 1 | 1 |
| 75 | Crohn's Disease, Diagnose-me.Com | http://www.diagnose-me.com/symptoms-of/crohns-disease.html | Diagnose-me.Com, Hawaii, United States | 2002 | 21 Jan 2014 | 1 | 3 | 4 | 1 |
| 76 | Crohns Disease Information: Is Colon Cleansing the Answer, Colon Cleanse Information | http://www.colon-cleanse-information.com/crohns-disease-information.html | Colon-Cleanse-Information.Com, MKR Concepts, Oregon, United States | 2007 | 11 Nov 2014 | 3 | 0 | 5 | 0 |
| 77 | Crohn's Disease or Regional Enteritis, MD India. | http://www.medindia.net/patients/patientinfo/Crohns-Disease.htm | Medindia4u.com Pvt. Ltd, Chennai, India | 2000 | 21 Nov 2014 | 5 | 0 | 1 | 0 |
| 78 | Crohn's Disease Information, Digestive Disorders | http://www.articleinsider.com/health-and-fitness/digestive-disorders/crohns-disease-information | Digestive Disorders, United States | 2003 | 03 Sep 2014 | 2 | 1 | 2 | 1 |
| 79 | Inflammatory Bowel Disease, Patient Center, American College of Gastroenterology | http://patients.gi.org/topics/inflammatory-bowel-disease/ | Patient Center, American College of Gastroenterology, Maryland, United States | 1996 | 16 May 2013 | 4 | 3 | 1 | 2 |
| 80 | Crohn's Disease:Symptoms, Diagnosis and Treatment, Disabled World.Com | http://www.disabled-world.com/health/digestive/crohns-disease/ | Disabled World.Com, New York, United States | 2004 | 29 Oct 2012 | 1 | 3 | 4 | 1 |
| 81 | Crohn's Disease, Nutritionist Resource | http://www.nutritionist-resource.org.uk/articles/crohns-disease.html | Nutritionist Resource, Surrey, United Kingdom | 2010 | 9 Feb 15 | 3 | 1 | 3 | 0 |
| 82 | Crohn's Disease: Symptoms, Diagnosis and Treatment, verywell.com | http://seniorhealth.about.com/cs/digestivetract/a/crohns_2.htm | Verywell.com part of about.com, Inc., United States | 1999 | 10 Feb 14 | 6 | 0 | 4 | 0 |
| 83 | Ulcerative Colitis, Halyard Surgical. | http://www.ulcerative-colitis.org/ | Halyard Surgical, New South Wales, Australia | 2003 | 7 Nov 14 | 2 | 0 | 6 | 1 |
| 84 | Ulcerative Colitis Overview, Health Communities.com | http://www.healthcommunities.com/colitis/ulcerative-colitis-overview.shtml | Healthcommunities.com, New York, United States | 1998 | 10 May 13 | 3 | 2 | 0 | 0 |
IBD: Inflammatory bowel disease; NHS: National Health Service; UNC: University of North Carolina.