Annotated sources — patient voice, irritable bowel syndrome¶
Every source used in themes.md and organizations.md, annotated with what it is, what it contributes and what constrains it. Journal sources carry PMIDs retrieved live from PubMed E-utilities on 2026-09-02; non-journal sources carry publisher, URL and access date per CONVENTIONS.md §1.
A. Peer-reviewed qualitative studies¶
Drossman DA, Chang L, Schneck S, Blackman C, Norton WF, Norton NJ. A focus group assessment of patient perspectives on irritable bowel syndrome and illness severity. Dig Dis Sci. 2009;54(7):1532-41. PMID 19337833 Three focus groups, 32 patients with mostly moderate-to-severe IBS, allocated by predominant stool pattern; conducted in part in response to FDA interest in patient-perspective data for severity instruments. Contributes Themes 1, 2 and 6. Constraint: participants recruited through advertising, skewing toward engaged and more severely affected patients; conducted under Rome II/III-era definitions.
Farndale R, Roberts L. Long-term impact of irritable bowel syndrome: a qualitative study. Prim Health Care Res Dev. 2011;12(1):52-67. PMID 21426615 Eighteen semi-structured in-depth interviews in the West Midlands, UK, conducted to data saturation between August 2006 and March 2008; purposive sampling across sex, age, severity and subtype. Its distinctive contribution is the argument that measured quality-of-life reduction underestimates true impact because coping strategies become invisible once integrated into daily life. Contributes Theme 1. Constraint: all participants had previously taken part in primary-care IBS research, so all were already research-engaged.
Björkman I, Dellenborg L, Ringström G, Simrén M, Jakobsson Ung E. The gendered impact of Irritable Bowel Syndrome: a qualitative study of patients' experiences. J Adv Nurs. 2014;70(6):1334-43. PMID 24224642 Nineteen interviews analysed with a constructionist gender framework. The authors identified different gendered burdens: men emphasised provider roles, women nurturing and relational responsibilities; women risked trivialisation in healthcare and men being overlooked because IBS was labelled a female concern. Constraint: the abstract does not report the male/female denominator, and the analysis concerns gendered expectations rather than a stand-alone male cohort.
Frändemark Å, Törnblom H, Simrén M, Jakobsson S. Maintaining work life under threat of symptoms: a grounded theory study of work life experiences in persons with Irritable Bowel Syndrome. BMC Gastroenterol. 2022;22(1):73. PMID 35183112 Semi-structured interviews with 23 adults—15 women and 8 men—generated a grounded theory of how people with IBS preserve working life. Constraint: it was designed around work rather than male experience, so it demonstrates inclusion of men's accounts but does not close the evidence gap for an all-male or male-focused cohort.
Manning LP, Tuck CJ, Biesiekierski JR, Willcox JC. Exploring the Experiences and Expectations of a Structured Low Fermentable Oligo-, Di-, Monosaccharide and Polyol Diet in People with Irritable Bowel Syndrome: A Qualitative Investigation. J Acad Nutr Diet. 2026; article 156437. PMID 42586418 Seventeen Australian adults with Rome IV IBS were interviewed after a dietitian-led low-FODMAP intervention. Four themes included the substantial planning, effort, motivation, cognitive burden and emotional burden of restriction, and the work of integrating dietary learning after the trial. Constraint: participants came from a parent dietary trial, spoke English, and had consented to future research contact; the study therefore samples people who reached and engaged with specialist dietary care.
Jakobsson Ung E, Ringström G, Sjövall H, Simrén M. How patients with long-term experience of living with irritable bowel syndrome manage illness in daily life: a qualitative study. Eur J Gastroenterol Hepatol. 2013;25(12):1478-83. PMID 24047860 Interpretative phenomenological analysis of 20 patients (16 women), mean age 46, mean IBS duration 24 years. Themes "healed but not cured" and "take control of daily life". Contributes Themes 1 and 7. Constraint: single Swedish tertiary centre; the long-duration sample is a strength for the natural-history question and a limit for generalisation to newly diagnosed patients.
Mohebbi Z, Sharif F, Peyrovi H, Rakhshan M, Naini MA, Zarshenas L. Self-Perception of Iranian Patients during their life with Irritable Bowel Syndrome: A Qualitative Study. Electron Physician. 2017;9(12):5885-5893. PMID 29560138 Hermeneutic phenomenology, 12 patients from three clinics affiliated to Shiraz University of Medical Sciences, July 2015 – September 2016. Themes "the threatened self" (fear of stigmatisation; bad sense of self) and "deep self-knowledge" (body knowledge; self-acceptance; personal growth). The only non-Western qualitative source in this layer. Contributes Theme 2. Constraint: n=12, single city, clinic-recruited.
Halpert A, Godena E. Irritable bowel syndrome patients' perspectives on their relationships with healthcare providers. Scand J Gastroenterol. 2011;46(7-8):823-30. PMID 21561228 Expressive-writing study: participants wrote for 30 minutes a day for four consecutive days; 228 writings from the first 57 participants analysed by quantitative content analysis. 82% female; mean age 41.1 (SD 12.7); 98% had seen a doctor for IBS; mild-to-moderate severity (IBS-SSS 190.6). Contributes Theme 3. Constraint: the writing prompt itself invites reflection on the illness experience, which may amplify negative provider content; content-analysis categories were derived by the authors.
Bontempo AC, Bontempo JM, Duberstein PR. Ignored, dismissed, and minimized: Understanding the harmful consequences of invalidation in health care — a systematic meta-synthesis of qualitative research. Psychol Bull. 2025;151(4):399-427. PMID 40310228 Meta-synthesis of 151 qualitative reports, 11,307 individuals, across eleven contested or difficult-to-diagnose conditions including IBS, fibromyalgia, endometriosis, ME/CFS, long COVID, Ehlers-Danlos syndrome, POTS and vulvodynia. Identifies four classes of consequence of symptom invalidation and proposes a conceptual model. Contributes Themes 2, 6 and the cross-cutting observation. Constraint: IBS is one of eleven conditions pooled; condition-specific effect sizes are not separable, so this is used here as convergent evidence rather than as IBS-specific data.
B. Peer-reviewed patient surveys and quantitative experience studies¶
Halpert A, Dalton CB, Palsson O, et al. What patients know about irritable bowel syndrome (IBS) and what they would like to know. National Survey on Patient Educational Needs in IBS and development and validation of the Patient Educational Needs Questionnaire (PEQ). Am J Gastroenterol. 2007;102(9):1972-82. PMID 17488254 National US survey, 1,242 respondents (371 by mail, 871 online); mean age 39.3 (SD 12.5), 85% female, mean IBS duration 6.9 years, 79% had seen a doctor for IBS in the previous six months, 92.6% used the web for health information. Source of the misconception and information-need proportions in Theme 4. Constraint: 2007 data; heavily internet-recruited; no comparable recent replication was retrievable this session.
Sherwin LB. Layperson's knowledge and perceptions of irritable bowel syndrome as potential barriers to care. J Adv Nurs. 2018;74(5):1199-1207. PMID 29319900 Cross-sectional study of 204 adults without an IBS diagnosis, collected in 2016–2017. Participants still endorsed misconceptions about cancer/IBD risk, specialist-only diagnosis and the need for colonoscopy. Constraint: laypeople rather than patients, modest convenience sample, and not a national replication of Halpert's patient survey.
Halpert A, Dalton CB, Palsson O, et al. Irritable bowel syndrome patients' ideal expectations and recent experiences with healthcare providers: a national survey. Dig Dis Sci. 2010;55(2):375-83. PMID 19513835 Same survey programme and cohort; compares patients' ideal expectations of providers against their actual experience with their most recent provider. Source of the wanted-versus-received table in Theme 3. Constraint: recalled experience, single provider, self-report.
Taft TH, Bedell A, Naftaly J, Keefer L. Stigmatization toward irritable bowel syndrome and inflammatory bowel disease in an online cohort. Neurogastroenterol Motil. 2017;29(2). PMID 27501483 Randomised clinical-vignette experiment in a general-population online cohort; six vignettes varying only disease label (IBS / IBD / adult-onset asthma) and patient sex; outcomes were emotional empathy, familiarity and enacted stigma. The only experimental stigma evidence in this layer. Contributes Theme 2. Constraint: online convenience sample; vignette responses measure stated attitudes, not behaviour.
Miller V, Hopkins L, Whorwell PJ. Suicidal ideation in patients with irritable bowel syndrome. Clin Gastroenterol Hepatol. 2004;2(12):1064-8. PMID 15625650 Four groups of 100: tertiary IBS, secondary IBS, primary-care IBS, and active inflammatory bowel disease as comparator. Patients were asked specifically whether they had contemplated or attempted suicide because of their bowel problem. Source of Theme 6. Constraint: single UK tertiary centre, 2004, and — critically — not replicated with a comparable multi-tier design in this session's searches. Treat as a signal, not a current prevalence estimate.
Goodoory VC, Ng CE, Black CJ, Ford AC. Impact of Rome IV irritable bowel syndrome on work and activities of daily living. Aliment Pharmacol Ther. 2022;56(5):844-856. PMID 35794733 752 UK adults with Rome IV-defined IBS; Work Productivity and Activity Impairment questionnaire for IBS plus the Work and Social Adjustment Scale. Source of the UK column of Theme 5 and of the activity-impairment figures in Theme 1. Constraint: community self-identified cohort meeting Rome IV criteria; national extrapolation is modelled, not measured.
Frändemark Å, Törnblom H, Jakobsson S, Simrén M. Work Productivity and Activity Impairment in Irritable Bowel Syndrome (IBS): A Multifaceted Problem. Am J Gastroenterol. 2018;113(10):1540-1549. PMID 30254230 525 Swedish IBS patients; subset of 155 also completed somatic-symptom, depression, anxiety and fatigue instruments; regression identified distinct predictors for absenteeism, presenteeism, overall work loss and activity impairment. Independent replication of Theme 5. Constraint: tertiary-centre recruitment.
Dhaliwal SK, Hunt RH. Doctor-patient interaction for irritable bowel syndrome in primary care: a systematic perspective. Eur J Gastroenterol Hepatol. 2004;16(11):1161-6. PMID 15489576 Systematic review of primary-care doctor–patient interaction in IBS. Only 4 of 121 retrieved articles met inclusion criteria, and the review itself notes that three of the four relied solely on qualitative patient narratives with a bias toward negative opinion. Contributes Theme 3 — and, by its own account of the literature, contributes the observation that this theme's evidence base is thin.
Kaptchuk TJ, Kelley JM, Conboy LA, et al. Components of placebo effect: randomised controlled trial in patients with irritable bowel syndrome. BMJ. 2008;336(7651):999-1003. PMID 18390493 Not a patient-experience study, but included here because it is the randomised quantification of what Themes 3 and 4 describe qualitatively: adding a warm, attentive practitioner relationship to a placebo ritual raised adequate relief from 44% to 62%, against 28% for observation alone. Full treatment on placebo-response-and-trial-design.
Rexwinkel R, et al. Mebeverine and the Influence of Labeling in Adolescents With Irritable Bowel Syndrome or Functional Abdominal Pain Not Otherwise Specified: A 2 x 2 Randomized, Placebo-Controlled Trial. Gastroenterology. 2025;169(1):94-103. PMID 40074185 Included for the cross-cutting observation only: the drug label nearly doubled treatment success (OR 2.84, 1.52–5.34, p=0.001) while the drug did nothing. Adolescent population — extrapolation to adults is an assumption.
Wileman V, et al. Development and preliminary evaluation of a suicidal risk assessment protocol in a randomised controlled trial using the Patient Health Questionnaire (PHQ-9). Trials. 2024;25:476. PMID 38997767 Methodological paper documenting how IBS trials now handle suicide risk; used in Theme 6 as evidence that the 2004 signal changed research practice.
Almario CV, Sharabi E, Chey WD, Lauzon M, Higgins CS, Spiegel BMR. Prevalence and Burden of Illness of Rome IV Irritable Bowel Syndrome in the United States. Gastroenterology. 2023;165(6):1475-1487. PMID 37595647 Used only for the care-seeking proportions that define who is missing from every other source in this file: 68.2–73.2% of Rome IV cases had ever sought care, so roughly 27–32% had not.
Ford AC, et al. Amitriptyline at Low-Dose and Titrated for Irritable Bowel Syndrome as Second-Line Treatment in primary care (ATLANTIS). Lancet. 2023;402(10414):1773-1785. PMID 37858323 Used in Theme 6 for its exclusion of participants with suicidal ideation at entry, and in the organisations layer for its investigators' explicit call for materials distinguishing amitriptyline for IBS from its use as an antidepressant.
C. Organisational and public-body web sources¶
All accessed 2026-09-02. Access outcomes recorded honestly, including failures.
| Source | Citation | Outcome |
|---|---|---|
| Guts UK — about page | (Guts UK — "About us", https://gutscharity.org.uk/about-us/, accessed 2026-09-02) | ✅ retrieved |
| Guts UK — IBS condition page | (Guts UK — "Irritable Bowel Syndrome (IBS)", https://gutscharity.org.uk/advice-and-information/conditions/irritable-bowel-syndrome/, accessed 2026-09-02) | ✅ retrieved |
| IBS Patient Support Group — who we are | (IBS Patient Support Group — "Who We Are", https://www.ibspatient.org/who-we-are/, accessed 2026-09-02) | ✅ retrieved |
| World IBS Day — support directory | (World IBS Day — "Support", https://worldibsday.org/support/, accessed 2026-09-02) | ✅ retrieved |
| MAGDA (DGNM information forum) | (MAGDA — Magen-Darm-Forum, https://www.magendarm-forum.de/, accessed 2026-09-02) | ✅ retrieved |
| PDS Belangenorganisatie | (PDS Belangenorganisatie, https://www.pdsb.nl/, accessed 2026-09-02) | ✅ retrieved |
| Rome Foundation | (Rome Foundation, https://theromefoundation.org/, accessed 2026-09-02) | ✅ retrieved |
| NHS — IBS | (NHS — "Irritable bowel syndrome (IBS)", https://www.nhs.uk/conditions/irritable-bowel-syndrome-ibs/, accessed 2026-09-02) | ✅ retrieved (navigation hub; limited content on the landing page itself) |
| IFFGD | (IFFGD, https://iffgd.org/, accessed 2026-09-02) | ❌ HTTP 403; description rests on search-result excerpts of the organisation's own pages, flagged in organizations.md |
| About IBS (IFFGD patient site) | (About IBS, https://aboutibs.org/, accessed 2026-09-02) | ❌ HTTP 403 |
| Gastrointestinal Society / CSIR | (badgut.org, https://badgut.org/, accessed 2026-09-02) | ❌ HTTP 403; description rests on search-result excerpts of the organisation's own pages, flagged in organizations.md |
| The IBS Network (former charity) | see note | ⚠️ theibsnetwork.org resolved to unrelated commercial content on 2026-09-02. The Charity Commission record for number 1173208 currently says "Removed charity"; historical materials still identify its former support role. No current charity website was established this session. |
Coverage limits — an honest accounting¶
- Geography. Qualitative evidence incorporated here now covers the UK, Sweden, USA, Canada, Iran and Australia. A targeted PubMed search on 2026-09-02 also found a Chinese social-media analysis (PMID 37093542), excluded under this layer's no-social-media ethics rule. No eligible patient-experience study from Africa, Latin America or South Asia was identified in that search. IBS prevalence is measured across these regions, so the remaining absence is a gap in this synthesis, not in the disease.
- Sex. Men remain under-represented, but the previous assertion that no gender-specific analysis existed was wrong. Björkman 2014 analysed 19 interviews through a gender framework and reported distinct effects on men and women (PMID 24224642); a separate work-life study included 8 men among 23 participants (PMID 35183112). No all-male qualitative cohort was retrieved in the targeted PubMed search run 2026-09-02.
- Recency. Themes 3, 4 and 6 rest substantially on 2004–2011 patient datasets. Sherwin 2018 (PMID 29319900) shows that several misconceptions persisted in 204 laypeople surveyed in 2016–2017, but it is not a patient or national replication. Targeted searches on 2026-09-02 retrieved no comparable contemporary survey of the wanted-versus-received gap or multi-tier replication of the 38% tertiary-care suicidal-ideation figure.
- Who is missing. Roughly 27–32% of people meeting Rome IV criteria have never sought care (Almario 2023, PMID 37595647). Every source in this file recruited from people who consulted, joined a registry, answered a survey or belong to an organisation. The experience of criteria-positive people outside the health system is entirely absent.
- Automated-access blocking. Three of eleven organisational URLs returned HTTP 403 to automated retrieval. Their entries are honestly downgraded rather than silently completed from secondary sources.
- Link rot and organisational closure. One former charity's expected domain has been repurposed to unrelated commercial content, and the Charity Commission now marks charity 1173208 as removed. Any sweep of this layer should begin by re-testing every URL in section C.
- No social media, forums or individual stories were used, by design (ethics rules in README.md). This excludes a large volume of first-person material and, with it, the most vivid accounts of the condition — a deliberate trade of richness for safety.
Compiled 2026-09-02. Journal identifiers verified live against PubMed E-utilities; web sources retrieved or attempted on that date, with failures recorded.