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HeatherAdministrator

Reged: 12/09/02
Posts: 7322
Loc: Seattle, WA
Health Economics of IBS
      07/05/05 03:01 PM

Health Economics of IBS -- Clinical Implications

Posted 06/24/2005

Brooks D. Cash, MD, FACP

Introduction
Irritable bowel syndrome (IBS) is a chronic gastrointestinal (GI) disorder characterized by impaired regulation of GI function (motility and secretion) and altered visceral sensitivity, resulting in the typical physical manifestations of abdominal pain, bloating, and abnormal bowel habits. IBS is a highly prevalent disorder, and although it does not have a significant impact on mortality, there remains no definitive curative therapy. Thus, patients with this condition may suffer from debilitating symptoms for prolonged periods. The burden of illness on patients, the healthcare industry, and employers that is directly attributable to IBS has only recently begun to be realized. This article summarizes the scope of the economic burden associated with IBS and examines potential targets for cost containment through directed education, recognition, and effective treatment of patients with IBS.

Economic Burden of IBS
IBS is extremely common, with population-based prevalence estimates ranging from 10% to 15% in North America.[1-2] Approximately 12% of patients in the primary care setting and 28% of patients seeking subspecialty gastroenterology care will be diagnosed with IBS.[3-4] Several patterns of healthcare seeking have been identified in patients with IBS. Although IBS affects both sexes, it is largely considered a women's health issue. Epidemiologic data suggest that the female:male ratio of IBS sufferers in the community is 2-3:1, although estimates differ depending on the practice setting from which such assessments are generated. Generally, however, two thirds of IBS sufferers in North America who seek medical care are women.[5,6] Although the minority (25%) of individuals with typical symptoms of the disorder actually do seek medical care, the high prevalence of IBS translates into a sizable absolute number of patients.[2,7] Recent reports estimate physician visits attributable to IBS to be as high as 3.5 million visits annually.[8-10] Additionally, it has been repeatedly demonstrated that patients with IBS are more likely to seek medical care for other, non-GI conditions or physical complaints, such as fibromyalgia or chronic pelvic pain.[5] Because there are no discrete physical abnormalities or biochemical/serological markers that define IBS, this condition has historically been viewed by many clinicians as a diagnosis of exclusion. This view, coupled with the increasing number and cost of available diagnostic studies, can lead to extensive and unnecessary testing. An exhaustive exclusionary diagnostic evaluation, especially in patients with typical IBS symptoms without alarm features (age ≥ 50 years, fever, abnormal physical examination findings, hematochezia, unintentional weight loss, nocturnal symptoms, or a family history of organic GI disease), contributes to an increased burden on both patients and the medical system, and recently has been challenged regarding its usefulness in the management of such patients.[11]

Direct vs Indirect Costs
When considering the economic burden of a condition, it is important to consider both direct and indirect costs. The direct costs (use of healthcare-related services such as physician visits, diagnostic tests, and prescription or over-the-counter medication) associated with IBS are substantial.[12] Excluding prescription and over-the-counter medicines, direct costs have been estimated to range from $1.5 to $10 billion. The indirect costs of IBS, however, have been estimated to be much greater -- approaching $20 billion.[13] Examples of indirect costs include expenses that are not directly associated with the procurement of healthcare resources, such as the loss of hourly wages resulting from missed work or diminished work productivity resulting from absences for physician visits or incapacitating symptoms. Although direct costs are relatively straightforward and measurable, indirect costs are much more difficult to quantify.

Indirect costs comprise 3 primary components -- absenteeism (time absent from work), presenteeism (decreased productivity at work), and diminished health-related quality of life (HRQoL) -- which, in turn, are intangible costs that may result in diminished productivity.[12,14-16] The economic impact of absenteeism is fairly straightforward to gauge because most employers maintain adequate records of employee absences for illness. It has been estimated that a minimum of one third of IBS patients are absent on average from 1 day of work or school per week because of their symptoms.[17] Results of a recent survey indicate that patients with IBS were absent from work twice as many days per year due to illness as compared with healthy respondents.[18] In 1998 the direct cost of treating an employee with IBS was nearly $4000 compared with $2350 for an employee without IBS.[19] By comparison, indirect costs to the employer were approximately $470 higher for employees with IBS -- a likely underestimate because these indirect costs only included measures of absenteeism.[20]

Presenteeism may represent a significantly larger and less appreciated component of indirect costs than absenteeism.[17-21] Results of a recent study that examined impaired work productivity and HRQoL in employees with IBS demonstrated that the disorder was associated with a 21% reduction in work productivity, the equivalent of working less than 4 days in a 5-day work week.[14] Both absenteeism and presenteeism are growing concerns for both employers as well as interested consumers who are forced to bear the brunt of lost work productivity and subsidize employee healthcare costs. It is, therefore, critical for healthcare providers and managed care organizations to present solutions for employers on how best to manage the large, often unrecognized costs of IBS.

Finally, IBS has a significant negative impact on the HRQoL of affected patients[14,22-25] that is comparable to that of other chronic GI and non-GI disorders.[26-27] Reduction in HRQoL may result from several features of IBS that are also observed with other functional GI disorders. The multiple symptoms of IBS may wax and wane over time, leading patients to put off healthcare consultation, thus resulting in delayed diagnosis of, and extended time suffering from, the disorder.[12,28] Supporting this hypothesis is the observation that although multiple epidemiologic and clinical studies demonstrate that the symptoms of IBS typically appear between the ages of 15-30 years, most IBS patients do not seek their first healthcare consultation for the disorder until they are between the ages of 30 and 50 years, coinciding with peak employment ages.[29] Last, as in other functional GI disorders, the historical absence of effective therapies addressing the multiple symptoms of IBS is also likely have a negative impact on the HRQoL of affected patients.[30]

Clinical and Therapeutic Impact
What, then, can be done to mitigate some of the costs associated with IBS? Although it is not the focus of this column, accurate and timely diagnosis is an important consideration. For IBS, applying clinically proven symptom-based diagnostic criteria (Manning, Rome, Rome I, or Rome II) to make a positive, rather than exclusionary, diagnosis is an important step in the right direction to reduce overall costs. Previous analyses have demonstrated that in patients with suspected IBS who do not manifest alarm features, the pretest probability of organic disease is similar to that of the general population, suggesting that there is little to be gained by implementing exhaustive diagnostic evaluations in such patients.[11,31] Current recommendations for such patients are to initiate empiric therapy, reserving additional testing for nonresponsive patients.[1] There is evidence that this "minimalistic" approach is gaining favor and that such an approach can reduce resource utilization involving diagnostic procedures and frequent office visits.[30] The magnitude of the impact of this approach on the total costs associated with IBS, however, remains to be seen.

Regarding therapeutic interventions and minimization of the costs associated with IBS, it is becoming increasingly clear that the multiplicity of the symptoms may be as important a feature of the disorder as the severity of individual symptoms in terms of how patients report the "bothersomeness" or seriousness of their condition. A significant limitation of the so-called traditional therapies for IBS, such as bulking agents or antispasmodic medications, is that they only target single symptoms, a feature that may explain their absence of proven efficacy in randomized controlled trials. Alternatively, broader acting therapeutic agents or modalities that provide relief for the multiple symptoms of IBS would conceivably have promise in reducing multiple direct and indirect costs of this condition. In a study regarding the effects of psychotherapy in patients with severe IBS, Creed and colleagues[32] demonstrated annual healthcare-related utilization savings of nearly $700 compared with usual care. In this trial, "usual care" was defined as whatever management was considered appropriate by the gastroenterologists or primary care physicians caring for the patients. Although not explicitly delineated in the text of the article, "usual care" in this case, consisted primarily of traditional IBS therapies (such as antispasmodic agents, antidiarrheals, and bulking agents). However, the generalizability of these results to the community setting is not known. Fortunately, physicians now have access to new and increasingly effective medical therapies for the management of the multiple symptoms of IBS in the form of the serotonergic agents, tegaserod and alosetron. It is widely accepted that these agents are effective therapies for IBS; both tegaserod and alosetron were the only agents to receive grade A recommendations as IBS therapies from the American College of Gastroenterology Functional GI Disorder Task Force, based on the high quality of published evidence supporting their global efficacy in IBS with constipation and IBS with diarrhea, respectively.[1] However, although both tegaserod and alosetron are clinically effective, they have been associated with adverse effects. Tegaserod is reported to cause severe but transient diarrhea, whereas patients taking alosetron have reported episodes of ischemic colitis and severe constipation. Ischemic colitis has also been observed in the postmarketing experience with tegaserod, but the incidence rate of ischemic colitis in patients taking tegaserod appears to be similar to that observed in the general population and is actually lower than reported rates in IBS patients. Thus, a causal relationship between tegaserod and ischemic colitis has not been established.[33]

Although the expense associated with these newer agents may result in an initial increase in the direct costs of IBS care, it is possible that they could, when clinically effective for appropriate individual patients, significantly reduce the long-term direct and indirect costs. Limited data exist regarding the use of these serotonergic agents and their actual impact on the costs of IBS. A study utilizing a decision-analysis model examined the benefits of symptom improvement vs the complications associated with alosetron therapy in the treatment of patients with IBS with diarrhea.[33-34] It showed that although the benefit-to-risk profile of alosetron was favorable, this treatment was associated with a potentially large cost per quality-adjusted life-year. Currently, alosetron therapy is limited to women with severe IBS with diarrhea that is refractory to traditional therapies. As a consequence, new or ongoing studies regarding the economic impact of this therapy on IBS are limited. (In order to prescribe alosetron, clinicians must be familiar with the current prescribing guidelines and be enrolled in the prescribing program administered by the manufacturer. Patients who are prescribed alosetron are given a patient information booklet to read and are asked to sign a patient-physician agreement indicating that they have both read and understand the effects of the medication and that they do desire to take it.)

Largely due to the limited availability of data concerning the economic impact of the serotonergic agents in the treatment of IBS, a series of articles addressing many of the issues discussed in this column was recently published in The American Journal of Managed Care .[14,35-39] [14,34-38] The authors of these articles explore the costs associated with IBS as well as treatment options, and provide readers with a comprehensive review of the epidemiology, prevalence, management, and economic impact of the disorder. (It should be noted that 3 of the 5 articles in this series deal with analyses focused on the effects of tegaserod. Given that alosetron administration is restricted, the applicability of additional cost analyses of alosetron-based intervention strategies may be limited. Tegaserod, however, is not restricted and actually has several indications for its use, so analyses of the economic effects of this medicine may be important in steering formulary decisions or benefit coverage.) In one of these studies, a budget-impact model was developed to assess the economic effect of adding tegaserod to the formulary of a managed care organization.[36] This model estimated the economic impact for patients with IBS both 6 months before and 6 months after the initiation of tegaserod therapy. It was found that the total per-patient budget impact for all resources (including the cost of tegaserod) for a 6-month period was approximately $274 for women with IBS. Overall, 29% of the cost of tegaserod was offset by decreases in resource utilization (including pharmacy, inpatient, outpatient, endoscopic, and nonendoscopic resources). These results suggest that effective therapy can indeed decrease GI-related resource utilization, perhaps ultimately leading to a significant cost-offset percentage.

Also included in this issue of the journal was a retrospective, longitudinal study that evaluated the GI-related resource utilization (office visits, hospitalizations, emergency department visits, endoscopic and nonendoscopic procedures) in a managed care population consisting of tegaserod users and nonusers.[37] It was found that GI resource utilization by tegaserod users for all comparisons before and after the initiation of therapy showed significant decrements in all utilization categories except for GI drug prescriptions. Matched nonusers did not show consistent decrements in GI resource utilization. Last, in an effort to illustrate the indirect costs associated with IBS and the potential cost savings that might accrue after effective therapeutic intervention, an economic model was designed to assess the indirect costs associated with tegaserod therapy in female patients with IBS.[38] This model demonstrated that treatment resulted in gains of $1882 through avoided productivity losses per employee. The benefits of decreased amounts of work loss and the cost of therapy in this model predicted a very favorable benefit/cost ratio of 3.75, demonstrating the potential extrapolated value of effective therapy.

Conclusion
The symptoms of IBS and the impact of this chronic disorder on both patients and the healthcare system alike are substantial. Because IBS has such a high prevalence and predominantly affects adults of working age, it imposes a significant burden on the patient as well as the employer, third-party payers, and society through a variety of direct and indirect costs. Although estimates of the degree of this burden vary and may be difficult to ascertain or even recognize, it appears that the indirect costs associated with IBS (upwards of $20 billion annually) comprise the major component of total costs associated with the condition.

Strategies to reduce direct costs will necessarily be directed at recognition of the disorder and should include physician and patient education, paramedical-based education and therapy, lay support groups, optimization of the diagnostic approach to patients with suspected IBS, and implementation of IBS educational awareness and incentive programs similar to initiatives targeting other chronic disorders such as GERD, diabetes mellitus, and hypertension.[35,40] Additionally, there is emerging evidence that continued development and increasing use of clinically effective therapies that target the multiple symptoms of IBS appear to have the potential to facilitate significant reductions in both direct and indirect costs associated with this chronic disorder.

Funding Information

Supported by an independent educational grant from Novartis.




Brooks Cash, MD, FACP , Assistant Professor of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland; Chief, Gastroenterology Division and Colon Cancer Center Initiative, National Naval Medical Center, Bethesda, Maryland


Disclosure: Brooks Cash, MD, FACP, has disclosed that he has served as an advisor or consultant to Novartis and Wyeth.


Medscape Gastroenterology. 2005;7(1) ©2005 Medscape

http://www.medscape.com/viewarticle/506873_1

--------------------
Heather is the Administrator of the IBS Message Boards. She’s the author of Eating for IBS and The First Year: IBS, and the CEO of Heather's Tummy Care. Join her IBS Newsletter. Meet Heather on Facebook!

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. * Abdominal Radiography Not Useful in Constipated Children HeatherAdministrator   07/24/05 02:30 PM
. * IBS—The Irritation of Inflammation HeatherAdministrator   07/24/05 02:16 PM
. * Irritable Bowel Syndrome in the United States: Prevalence, Symptom Patterns and Impact HeatherAdministrator   07/05/05 03:40 PM
. * IBS: Improving Diagnosis, Serotonin Signaling, and Implications for Treatment HeatherAdministrator   07/05/05 03:30 PM
. * Neural Cross-Talk May Explain Overlap of Irritable Bowel, Interstitial Cystitis HeatherAdministrator   07/05/05 03:11 PM
. * Health Economics of IBS HeatherAdministrator   07/05/05 03:01 PM
. * Overlapping Upper and Lower Gastrointestinal Symptoms in Irritable Bowel Syndrome HeatherAdministrator   06/20/05 03:52 PM
. * Diagnostic Yield of Alarm Features in Irritable Bowel Syndrome HeatherAdministrator   06/20/05 03:44 PM
. * Colon Cancer Test Misses Growths in Women HeatherAdministrator   06/05/05 05:56 PM
. * Nongastrointestinal symptoms of irritable bowel syndrome HeatherAdministrator   05/22/05 07:14 PM
. * Partnering With Gastroenterologists to Evaluate Patients With Chronic Constipation HeatherAdministrator   05/08/05 06:16 PM
. * Impairment in Work Productivity and Health-related Quality of Life in Patients With IBS HeatherAdministrator   05/08/05 06:11 PM
. * Nerves, Reflexes, and the Enteric Nervous System: Pathogenesis of the Irritable Bowel Syndrome HeatherAdministrator   05/08/05 06:06 PM
. * What Does the Future Hold for Irritable Bowel Syndrome HeatherAdministrator   05/08/05 06:02 PM
. * Towards a better understanding of abdominal bloating and distension in functional GI disorders HeatherAdministrator   04/24/05 03:40 PM
. * IBS is a risk factor for GERD HeatherAdministrator   04/10/05 06:25 PM
. * New Recommendations for Treating Children With Chronic Abdominal Pain HeatherAdministrator   03/28/05 01:59 PM
. * Irritable bowel syndrome in developing countries HeatherAdministrator   03/28/05 01:29 PM
. * Stress and the gastrointestinal tract HeatherAdministrator   03/28/05 01:27 PM
. * Alternating Bowel Habit Subtype in Patients with Irritable Bowel Syndrome HeatherAdministrator   03/28/05 12:28 PM
. * Fecal Microbiota of Irritable Bowel Syndrome Patients HeatherAdministrator   03/04/05 12:11 PM
. * Post-infectious IBS in patients with Shigella infection HeatherAdministrator   03/04/05 12:03 PM
. * Surgical Treatment of Chronic Functional Constipation? HeatherAdministrator   03/04/05 11:24 AM
. * Chronic constipation in children HeatherAdministrator   02/19/05 05:53 PM
. * Intestinal infection and irritable bowel syndrome. HeatherAdministrator   02/19/05 05:36 PM
. * Overlap of GI symptom complexes in a US community HeatherAdministrator   02/06/05 02:35 PM
. * Magnetic pill tracking: a novel non-invasive tool for investigation of human digestive motility HeatherAdministrator   02/06/05 02:27 PM
. * The value of a general therapeutic approach in subjects with irritable bowel syndrome HeatherAdministrator   02/06/05 02:22 PM
. * Is Constipation Associated with Decreased Physical Activity in Normally Active Subjects? HeatherAdministrator   02/06/05 02:18 PM
. * High interdigestive and postprandial motilin levels in patients with the irritable bowel syndrome HeatherAdministrator   02/06/05 02:12 PM
. * 10% to 20% of older adults have IBS HeatherAdministrator   01/23/05 05:05 PM
. * Diagnostic Criteria for Irritable Bowel Syndrome - Family Practice Doctors Unaware of Guidelines HeatherAdministrator   01/07/05 06:20 PM
. * Stress Increases Visceral Sensitivity in IBS Patients HeatherAdministrator   01/07/05 06:13 PM
. * Treatment of irritable bowel syndrome with colonic pacing HeatherAdministrator   01/07/05 05:53 PM
. * Irritable bowel syndrome: colonoscopy painful and difficult? HeatherAdministrator   01/07/05 05:50 PM
. * Suicide in IBS patients emphasizes need for improvements in treatment HeatherAdministrator   01/07/05 05:47 PM
. * New Risk for Asthma, Allergy Found in the Gut HeatherAdministrator   01/07/05 04:53 PM
. * Salt intake and smoking play major roles in GERD HeatherAdministrator   12/20/04 02:11 PM
. * Constipation and Laxative Use Found to Increase Colon Cancer Risk HeatherAdministrator   12/20/04 01:30 PM
. * Link Between Irritable Bowel Syndrome (IBS), Alcoholism and Mental Illness HeatherAdministrator   12/20/04 01:24 PM
. * Complementary and alternative medicine in gastroenterology HeatherAdministrator   12/20/04 01:16 PM
. * Advances in the Treatment of Chronic Constipation HeatherAdministrator   11/28/04 02:55 PM
. * Symptom patterns in functional dyspepsia and irritable bowel syndrome HeatherAdministrator   11/28/04 02:34 PM
. * Obese Women Face Higher Risk of Colorectal Cancer HeatherAdministrator   11/08/04 04:48 PM
. * Obesity is Associated With Increased Risk of Gastrointestinal Symptoms HeatherAdministrator   10/24/04 07:42 PM
. * Stress Therapy Can Help Irritable Bowel HeatherAdministrator   10/24/04 07:38 PM
. * Relationship Between Colon Ischemia, Irritable Bowel Syndrome HeatherAdministrator   10/11/04 04:15 PM
. * Clinical Update on the Treatment of Constipation in Adults HeatherAdministrator   10/11/04 03:34 PM
. * Racial Differences in the Impact of Irritable Bowel Syndrome on Health-Related Quality of Life HeatherAdministrator   10/11/04 03:25 PM
. * What Differentiates Chronic Constipation From IBS With Constipation? HeatherAdministrator   09/26/04 03:25 PM
. * Treatment options in irritable bowel syndrome HeatherAdministrator   09/26/04 02:57 PM
. * Diagnostic approach to suspected irritable bowel syndrome HeatherAdministrator   09/12/04 03:38 PM
. * Dyssynergic Defecation: Demographics, Symptoms, Stool Patterns, and Quality of Life HeatherAdministrator   09/12/04 03:35 PM
. * Small Intestinal Bacterial Overgrowth - A Framework for Understanding IBS HeatherAdministrator   08/30/04 01:46 PM
. * New views - and some respect - for IBS HeatherAdministrator   08/30/04 01:25 PM
. * Categorization of dysmotility in patients with chronic constipation HeatherAdministrator   08/08/04 02:54 PM
. * Prevalence of IBS according to different diagnostic criteria HeatherAdministrator   08/08/04 02:50 PM
. * Irritable Bowel Can Follow Dysentery HeatherAdministrator   08/08/04 02:37 PM
. * Irritable Bowel Syndrome Remains a Difficult Condition to Manage HeatherAdministrator   07/24/04 02:09 PM
. * Intolerance to visceral distension in functional dyspepsia or irritable bowel syndrome HeatherAdministrator   07/24/04 02:17 PM
. * Bacillary dysentery as a causative factor of irritable bowel syndrome and its pathogenesis HeatherAdministrator   07/24/04 01:42 PM
. * Irritable Bowel Syndrome Linked to High Rates of Various Surgeries HeatherAdministrator   07/11/04 02:15 PM
. * Drug-Free Ways to Treat IBS HeatherAdministrator   07/11/04 01:47 PM
. * Irritable Bowel Syndrome - An Evidence-Based Approach to Diagnosis HeatherAdministrator   06/27/04 01:14 PM
. * Biases Affect Treatment of IBS HeatherAdministrator   06/04/04 06:45 PM
. * Moms with Bowel Symptoms Take Baby to Doctor More HeatherAdministrator   05/25/04 11:53 AM
. * Natural History of Irritable Bowel Syndrome HeatherAdministrator   05/10/04 02:36 PM
. * Intestinal Gas May Contribute to IBS Symptoms HeatherAdministrator   05/10/04 02:29 PM
. * Are Your Bowels Irritable? IBS Awareness Month is Here HeatherAdministrator   04/09/04 07:11 PM
. * Heartburn May Not Reflect Gastroesophageal Reflux Disease Severity HeatherAdministrator   03/30/04 02:43 PM
. * A link between irritable bowel syndrome and fibromyalgia HeatherAdministrator   03/30/04 01:46 PM
. * Diverticular Disease: Electrophysiologic Study and a New Concept of Pathogenesis HeatherAdministrator   03/09/04 11:48 AM
. * New Syndrome Connects Gallbladder Dysfunction And Chronic Diarrhea HeatherAdministrator   03/09/04 11:45 AM
. * Researchers Pioneer Accessible, Cost-Effective Treatments for IBS HeatherAdministrator   03/08/04 06:48 PM
. * Splitting IBS: from original Rome to Rome II criteria HeatherAdministrator   02/10/04 02:35 PM
. * Utilization patterns and net direct medical cost to Medicaid of IBS HeatherAdministrator   02/10/04 02:34 PM
. * Family practitioners' attitudes and knowledge about IBS HeatherAdministrator   02/10/04 02:32 PM
. * The Effect of Somatization on Gastrointestinal and Extraintestinal Symptoms of IBS HeatherAdministrator   01/26/04 03:26 PM
. * Surgery and IBS HeatherAdministrator   01/26/04 03:21 PM
. * IBS Subgroups by Bowel Habit Predominance HeatherAdministrator   01/26/04 03:13 PM
. * Visceral perception thresholds in irritable bowel syndrome HeatherAdministrator   01/07/04 11:56 AM
. * Electric activity of the colon in irritable bowel syndrome HeatherAdministrator   01/07/04 11:52 AM
. * Irritable Bowel Syndrome's Possible Genetic Link HeatherAdministrator   01/07/04 11:40 AM
. * Intestinal gas distribution determines abdominal symptoms HeatherAdministrator   12/16/03 12:27 PM
. * Faecal incontinence - Many treatment options now exist HeatherAdministrator   12/16/03 12:17 PM
. * Abnormal Colonic Propagated Activity in Patients with Constipation HeatherAdministrator   12/16/03 12:07 PM
. * Colonic Propulsive Impairment in Intractable Slow-Transit Constipation HeatherAdministrator   12/16/03 12:03 PM
. * Overlapping upper and lower GI symptoms in IBS patients with constipation or diarrhea HeatherAdministrator   12/01/03 05:51 PM
. * Familial aggregation of irritable bowel syndrome HeatherAdministrator   12/01/03 05:49 PM
. * Outlook affects bowel disorder patients HeatherAdministrator   11/18/03 03:30 PM
. * Doctors unmoved by bowel misery HeatherAdministrator   11/18/03 03:28 PM
. * Travelers' Diarrhoea Can Trigger Irritable Bowel HeatherAdministrator   11/04/03 03:21 PM
. * Mind-Body Technique Eases Kids' Gut Pain HeatherAdministrator   10/30/03 11:17 AM
. * Molecular Alterations In Patients With Irritable Bowel Syndrome HeatherAdministrator   10/20/03 03:46 PM
. * Three in Four People With IBS Also Have Functional Dyspepsia HeatherAdministrator   10/15/03 03:28 PM
. * Infectious Gastroenteritis Linked to Irritable Bowel Syndrome HeatherAdministrator   09/30/03 02:27 PM
. * Association Between Pain Episodes & High Amplitude Pressure Waves in IBS HeatherAdministrator   09/16/03 03:54 PM
. * Constipation and its management HeatherAdministrator   09/16/03 03:41 PM
. * Contributions of suggestion, desire, and expectation to placebo effects in IBS patients HeatherAdministrator   09/16/03 03:28 PM
. * Do published guidelines for evaluation of IBS reflect practice? HeatherAdministrator   08/30/03 02:40 PM
. * Cognitive-behavioral therapy versus education and desipramine versus placebo for IBS HeatherAdministrator   08/12/03 12:54 PM
. * Distinctive features of postinfective irritable bowel syndrome HeatherAdministrator   07/28/03 03:18 PM
. * UCLA/CURE Neuroenteric Disease Program Newsletter HeatherAdministrator   07/23/03 10:38 AM
. * Bacterial Overgrowth in IBS HeatherAdministrator   07/18/03 12:15 PM
. * Diagnosis of irritable bowel syndrome. HeatherAdministrator   07/18/03 11:54 AM
. * Eradication of small intestinal bacterial overgrowth reduces symptoms of IBS HeatherAdministrator   07/18/03 11:44 AM
. * Antibiotics increase functional abdominal symptoms. HeatherAdministrator   07/18/03 11:41 AM
. * Treatment of the irritable bowel syndrome. HeatherAdministrator   07/15/03 11:02 PM
. * Extraintestinal symptoms in IBS and IBD HeatherAdministrator   07/15/03 06:21 PM
. * Postinfectious irritable bowel syndrome. HeatherAdministrator   07/15/03 06:19 PM
. * Dieting severity and GI symptoms in college women. HeatherAdministrator   07/15/03 01:13 PM
. * Functional GI disorders and eating disorders - Relevance of the association HeatherAdministrator   07/15/03 11:14 AM
. * Features of eating disorders in patients with IBS HeatherAdministrator   07/15/03 11:12 AM
. * New and Important Insights Into IBS HeatherAdministrator   07/14/03 03:24 PM
. * The Irritable Bowel Syndrome-Fibromyalgia Connection HeatherAdministrator   07/14/03 03:19 PM
. * Update on Treatment of Functional Gastrointestinal Disorders HeatherAdministrator   07/14/03 02:55 PM
. * Irritable bowel syndrome in primary care: The patients’ and doctors’ views HeatherAdministrator   07/14/03 02:43 PM
. * Inflammatory bowel disease and irritable bowel syndrome: separate or unified? HeatherAdministrator   07/14/03 02:32 PM

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