Medical invalidation is associated with structural barriers in postacute immune mediated syndromes based on patient perspectives in Germany

Abstract:

Post-acute immune-mediated syndromes (PAIMS), including Long COVID/Post-COVID (LC/PC), Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), and post-acute COVID-19 vaccination syndrome (PACVS), are characterized by persistent, multisystemic symptoms and significant healthcare challenges. A key issue is medical invalidation, defined as the dismissal or delegitimization of patients’ reports of symptoms. This cross-sectional online study, conducted in Germany between October and December 2025 (N = 577), examined healthcare experiences, access barriers, and perceived invalidation.

Although healthcare utilization was high, 87% of participants reported difficulties accessing appropriate treatment. Major barriers included lack of available therapies (60%) or not being taken seriously (26%). Perceived invalidation by medical personnel was moderate across all groups (LC: M = 2.80; ME/CFS: M = 2.99; PACVS: M = 3.03) and did not differ significantly (Welch-F(2, 190.50) = 2.87, p = 0.059) between groups. Invalidation occurred not only within healthcare settings but was particularly pronounced in interactions with authorities and workplaces. Social media and online communities served as important sources of information and support, especially among individuals with ME/CFS.

Overall, the findings reveal substantial structural barriers in the care of PAIMS and highlight the need for improved clinical education, better care coordination, and stronger institutional recognition of these conditions.

Source: Saad J, Hensen J, Bergelt C, Lerch SP. Medical invalidation is associated with structural barriers in postacute immune mediated syndromes based on patient perspectives in Germany. Sci Rep. 2026 Aug 25;16(1):26687. doi: 10.1038/s41598-026-67883-2. PMID: 42642464; PMCID: PMC13507045. https://pmc.ncbi.nlm.nih.gov/articles/PMC13507045/ (Full text)

Barriers to healthcare utilization in fatiguing illness: a population-based study in Georgia

Abstract:

BACKGROUND: The purpose of this study was to determine the prevalence of barriers to healthcare utilization in persons with fatiguing illness and describe its association with socio-demographics, the number of health conditions, and frequency of healthcare utilization. Furthermore, we sought to identify what types of barriers interfered with healthcare utilization and why they occurred.

METHODS: In a cross-sectional population-based survey, 780 subjects, 112 of them with chronic fatigue syndrome (CFS), completed a healthcare utilization questionnaire. Text analysis was used to create the emerging themes from verbatim responses regarding barriers to healthcare utilization. Multiple logistic regression was performed to examine the association between barriers to healthcare utilization and other factors.

RESULTS: Forty percent of subjects reported at least one barrier to healthcare utilization. Of 112 subjects with CFS, 55% reported at least one barrier to healthcare utilization. Fatiguing status, reported duration of fatigue, insurance, and BMI were significant risk factors for barriers to healthcare utilization. After adjusting for socio-demographics, medication use, the number of health problems, and frequency of healthcare utilization, fatiguing status remained significantly associated with barriers to healthcare utilization.

Subjects with CFS were nearly 4 times more likely to forego needed healthcare during the preceding year than non-fatigued subjects while those with insufficient fatigue (ISF) were nearly 3 times more likely.Three domains emerged from text analysis on barriers to healthcare utilization: 1) accessibility; 2) knowledge-attitudes-beliefs (KABs); and, 3) healthcare system. CFS and reported duration of fatigue were significantly associated with each of these domains. Persons with CFS reported high levels of healthcare utilization barriers for each domain: accessibility (34%), healthcare system (25%), and KABs (19%). In further examination of barrier domains to healthcare utilization, compared to non-fatigued persons adjusted ORs for CFS having “accessibility”, “KAB” and “Healthcare System” barrier domains decreased by 40%, 30%, and 19%, respectively.

CONCLUSION: Barriers to healthcare utilization pose a significant problem in persons with fatiguing illnesses. Study results suggested two-fold implications: a symptom-targeted model focusing on symptoms associated with fatigue; and an interactive model requiring efforts from patients and providers to improve interactions between them by reducing barriers in accessibility, KABs, and healthcare system.

 

Source: Lin JM, Brimmer DJ, Boneva RS, Jones JF, Reeves WC. Barriers to healthcare utilization in fatiguing illness: a population-based study in Georgia. BMC Health Serv Res. 2009 Jan 20;9:13. doi: 10.1186/1472-6963-9-13. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2651135/ (Full article)

 

Determinants of health care use in chronic fatigue syndrome patients: a cross-sectional study

Abstract:

BACKGROUND: Chronic fatigue syndrome (CFS) is associated with a high use of health care services. To reduce the related costs for patients and society, it will be useful to know which factors determine CFS patients’ amount of health care use. Little is known, however, about these factors.

METHOD: The present study retrospectively performed a cross-sectional analysis to investigate the possible factors determining CFS patients’ health care use. A total of 263 CFS patients, derived from two subgroups (149 from tertiary care and 114 from primary/secondary care), participated. Health care use was measured with a questionnaire asking details on consumption over the past 6 months. Fatigue severity and physical functioning were measured with the subscale Experienced Fatigue of the Checklist Individual Strength (CIS-20) and the subscale Physical Functioning of the SF-36, respectively. Multiple regression analysis, T-tests, and chi(2) tests were performed.

RESULTS: The regression analysis revealed that, after controlling for patient characteristics (explaining 13%), fatigue factors added 4% predictive value and certain perpetuating factors of fatigue, including focus on bodily symptoms and attributions of fatigue, added another 5%. The analysis of subgroups revealed that, compared to the tertiary care population, fewer patients from primary/secondary care had visited a medical specialist (50% vs. 71%), used antidepressants (16% vs. 25%) and tranquilizers (3% vs. 18%), and had spent a night in hospital (7% vs. 10%). However, overall costs of health care between these subgroups did not differ.

CONCLUSIONS: This study showed that illness duration, physical impairment due to fatigue, and psychological perpetuating factors of fatigue do determine the variance in CFS patients’ health care use. These results give clear directions for treating CFS patients and managing health care for CFS.

 

Source: Scheeres K, Wensing M, Severens H, Adang E, Bleijenberg G. Determinants of health care use in chronic fatigue syndrome patients: a cross-sectional study. J Psychosom Res. 2008 Jul;65(1):39-46. doi: 10.1016/j.jpsychores.2008.03.015. Epub 2008 May 22. https://www.ncbi.nlm.nih.gov/pubmed/18582610