A Nonviable Probiotic in Irritable Bowel Syndrome: A Randomized, Double-Blind, Placebo-Controlled, Multicenter Study.

BACKGROUND & AIMS: The aim of this study was to investigate the effectiveness of oral treatment with a nonviable probiotic lysate (BL) of Escherichia coli (DSM 17252) and Enterococcus faecalis (DSM 16440) in patients with irritable bowel syndrome (IBS). METHODS: A phase IV, randomized, double-blind, placebo-controlled, multicenter (30 study sites), parallel group study was conducted in 389 patients of both sexes with IBS according to Rome III criteria. The treatment period was 26 weeks. The participants were allocated to either placebo or BL after a 2-week baseline period. The primary outcome was based on the European Medicines Agency IBS guideline: improvement in global assessment (GAI) and improvement in abdominal pain. RESULTS: Patients (BL, n = 191; placebo, n = 198) had similar baseline values and dropout rates. Overall, the response was similar between BL and placebo for IBS-GAI (17.4% and 14.4%, respectively; P = ·4787) and abdominal pain (42.0% and 35.4%, respectively; P = ·1419). Some secondary outcome measures and sensitivity analyses pointed toward potentially higher sensitivity of the abdominal pain measures in diarrhea-predominant IBS (IBS-D) but not the other subtypes. For the GAI, no subgroup differences were detected. For IBS-D, post hoc analyses for abdominal pain response over time and stool consistency showed potentially promising effects of BL. Finally, the treatment with BL was well-tolerated. CONCLUSIONS: BL is not effective across all IBS subtypes. However, BL may offer a treatment option for IBS-D that needs verification by an adequately powered drug trial; EudraCT-No.: 2012-002741-38.

Quality of life and sleep in individuals with irritable bowel syndrome according to different diagnostic criteria and inflammatory bowel diseases: A comparison using data from a population-based survey.

BACKGROUND: A proportion of irritable bowel syndrome (IBS) affected patients does not fulfil Rome criteria despite considerable impairment similarly to that in patients with organic gastrointestinal diseases.This investigation aims to examine differences regarding Mental (MQoL), Physical Quality of Life (PQoL), and sleep between IBS according to Rome III (IBS Rome), clinically defined IBS, inflammatory bowel diseases (IBD), and non-IBS/non-IBD individuals. METHODS: Data from SHIP-Trend (Study of Health in Pomerania, 2008-2012), a population-based cohort study in Germany, were used. RESULTS: Response was 50.1% (N = 4420). Prevalence was 3.5% for IBS Rome (95% confidence interval (CI): 3.0 - 4.1%, n = 148), 0.6% for clinically defined IBS (CI: 0.4 - 0.9%, n = 27), and 0.8% for IBD (CI: 0.6 - 1.1%, n = 34). Individuals with IBS Rome (4.54 (CI: -5.92; -3.17)) and clinically defined IBS (4.69 (CI: -7.82; -1.56)) had lower scores for MQoL compared to the non-IBS/non-IBD group. PQoL scores were lowered in IBS Rome (6.39 (CI: -7.89; -4.88)) and IBD (5.37 (CI: -8.51; -2.22)), but not in clinically defined IBS compared to the non-IBS/non-IBD group. IBS Rome was the only gastroenterological condition with higher odds of sleeping problems (odds ratio (OR) "falling asleep": 1.74; CI: 1.29; 2.36; OR "remaining asleep": 1.73; CI: 1.26; 2.38). CONCLUSIONS: IBS Rome is associated with reduced MQoL, PQoL, and sleep problems. Clinically defined IBS is associated only with reduced MQoL. Heterogeneity within IBS affected patients should be considered in clinical routine and screening for daily life impairment should be performed.

Illness perception and health care use in individuals with irritable bowel syndrome: results from an online survey.

BACKGROUND: Individual illness perception is known to influence a range of outcome variables. However, little is known regarding illness perception in irritable bowel syndrome (IBS) and its relation to the use of the health care system. This study hypothesised a relationship between illness perception and inappropriate health care use (under-, over- and misuse). METHODS: An internet-based, cross-sectional study in participants affected by IBS symptoms was carried out (April - October 2019) using open questions as well as validated standardized instruments, e.g. the illness perception questionnaire revised (IPQ-R) and its subscales. Sub-group comparisons were done non-parametrically and effect sizes were reported. Potential predictors of (1) conventional health care utilisation and (2) utilisation of treatment approaches with lacking or weak evidence regarding effectiveness in IBS were examined with logistic regression analyses and reported as odds ratio (OR) and 95% confidence interval. RESULTS: Data from 513 individuals were available. More than one-third (35.7%) of participants were classified as high utilisers (> 5 doctor visits during the last year). Several indicators of inappropriate health care use were detected, such as a low proportion of state-of-the-art gynaecological evaluation of symptoms (35.0% of women) and a high proportion of individuals taking ineffective and not recommended non-steroidal antirheumatic drugs for IBS (29.4%). A majority (57.7%) used treatment approaches with lacking or weak evidence regarding the effectiveness in IBS (e.g. homeopathy). Being a high utiliser as defined above was predicted by the perceived daily life consequences of IBS (IPQ-R subscale "consequences", OR = 1.189 [1.100-1.284], p ≤ 0.001) and age (OR = 0.980 [0.962-0.998], p = 0.027). The use of treatment approaches with lacking or weak evidence was forecasted by the perceived daily life consequences (OR = 1.155 [1.091-1.223], p ≤ 0.001) and gender (reference category male: OR = 0.537 [0.327-0.881], p = 0.014), however effect sizes were small. CONCLUSIONS: Daily life consequences, perceived cure and personal control as aspects of individual disease perception seem to be related to individuals' health care use. These aspects should be a standard part of the medical interview and actively explored. To face inappropriate health care use patients and professionals need to be trained. Interdisciplinary collaborative care may contribute to enhanced quality of medical supply in IBS.

Conventional weight loss interventions across the different BMI obesity classes: A systematic review and quantitative comparative analysis.

OBJECTIVE: The recommendation for conventional body weight loss (BWL) treatment in obesity is 5-10%. It is not clear whether BWL is similar across the three different body mass index (BMI) obesity classes. The aim was to provide an overview on BWL across these classes in moderate lifestyle/diet intervention programs. METHOD: A systematic literature search was conducted and the evidence of randomized controlled trials (RCTs) and pre-post design studies synthesized. The outcome was BWL. RESULTS: For RCTs, mean BWL in the intervention group was 3.6 kg (class I) and 5.3 kg (class II), which equates to 4 and 5% BWL, respectively. None of the assessed class III obesity studies met the inclusion criteria. For pre-post design studies, mean BWL was 5.4 kg (class I), 5.5 kg (class II) and 7.9 kg (class III), with high variation within and across studies in the latter. This equates to 6, 5 and, 6% BWL, respectively. CONCLUSIONS: BWL of moderate BWL programs are similar across the different obesity classes. For class I obesity, the results differ between RCT and pre-post design studies by 2% BWL. The high variation of BWL in class III obesity might reflect different states of motivation such as the attitude towards bariatric surgery.

Professional burnout among medical students: Systematic literature review and meta-analysis.

BACKGROUND: This systematic review and meta-analysis aim to summarize the available evidence on the prevalence of professional burnout among medical students. METHODS: The review was performed according to the PRISMA guidelines. Databases were systematically searched for peer-reviewed articles, reporting burnout among medical students published between 2000 and 2017. The meta-analysis was conducted on the available data on burnout rates in medical students measured with the Maslach Burnout Inventory (MBI-HSS). RESULTS: Fifty-eight out of 3006 studies were found eligible for inclusion. Twelve of these studies met the criteria for meta-analysis. Weighted mean values for the three sub-dimensions of the MBI-HSS were M = 22.93 (SD = 10.25) for Emotional Exhaustion, M = 8.88 (SD = 5.64) for Depersonalization, and M = 35.11 (SD = 8.03) for Personal Accomplishment. Prevalence rates for professional burnout ranged from 7.0% to 75.2%, depending on country-specific factors, applied instruments, cutoff-criteria for burnout symptomatology. CONCLUSION: This review underlines the burden of burnout among medical students. Future research should explicitly focus on specific context factors and student group under investigation. Such efforts are necessary to control for context-dependent confounders in research on medical students' mental health impairment to enable more meaningful comparisons and adequate prevention strategies.

Placebo effects in children: a review.

Of more than 155,000 PubMed citations found with the search term "placebo," only ~9,000 (5.8%) included the terms "children" or "adolescents." When all these papers were screened, only ~2,000 of them investigated the placebo effect per se, and of those, only ~50 (2.5%) discussed the placebo effect in children and adolescents. In this narrative review, we explore four aspects of the placebo response in children and adolescents: (i) the legal and ethical limitations and restrictions for the inclusion of children in clinical trials as well as in experimental (placebo) research that may explain the poor knowledge base; (ii) the question of whether or not the placebo effect is larger in children and adolescents as compared with adults; (iii) whether the mechanisms underlying the placebo effect are similar between children and adults; and (iv) whether mediators and moderators of the placebo effect are comparable between children and adults. We finally discuss some of the consequences from the current placebo research in adults that may affect both experimental and clinical research in children and adolescents.

Assessing Attitudes and Participation Regarding a Pilot COVID-19 Workplace Vaccination Program in Southern Germany Considering the Occupational Health Perspective-A Mixed Methods Study.

This mixed methods study retrospectively assessed attitudes and participation of employees, occupational health personnel, and key personnel regarding the rollout of a pilot COVID-19 workplace vaccination program in five German companies in May/June 2021 in Baden-Württemberg (Southern Germany) by combining survey data and qualitative interviews. A total of 652 employees completed a standardized questionnaire and we conducted ten interviews with occupational health personnel and key personnel with other professional backgrounds organizing the pilot workplace vaccination program. Survey data were analyzed descriptively and interviews were audio recorded, transcribed verbatim, and analyzed using qualitative content analysis. Employees participated widely in COVID-19 vaccinations at their workplaces, and most employees (n = 608; 93.8%) had a full COVID-19 immunization at the time of the survey. The main advantages of the pilot COVID-19 workplace vaccination program were seen in the flexible and time-saving vaccination offer as well as the trust in and long-standing relationship with occupational health physicians. The main disadvantage of the pilot vaccination offer was increased workload for occupational health personnel, especially during the roll-out phase of the program. The pilot COVID-19 workplace vaccination program was predominantly positively assessed, and the important role of occupational health services in managing the COVID-19 pandemic was highlighted. The main criticisms of the COVID-19 workplace vaccination program related to the high organizational and administrative burden. Findings from our study can support the development of future programs for the administration of generally recommended vaccination in the workplace setting in Germany.

Effects of Expectancy on Cognitive Performance, Mood, and Psychophysiology in Healthy Adolescents and Their Parents in an Experimental Study.

OBJECTIVE: Placebo effects on cognitive performance and mood and their underlying mechanisms have rarely been investigated in adolescents. Therefore, the following hypotheses were investigated with an experimental paradigm: (1) placebo effects could be larger in adolescents than in adults, (2) parents' expectations influence their adolescents' expectations and placebo effects, and (3) a decrease in stress levels could be an underlying mechanism of placebo effects. METHODS: Twenty-six healthy adolescents (13.8 ± 1.6 years, 14 girls) each with a parent (45.5 ± 4.2 years, 17 mothers) took part in an experimental within-subjects study. On two occasions, a transdermal patch was applied to their hips and they received an envelope containing either the information that it is a Ginkgo patch to improve cognitive performance and mood, or it is an inactive placebo patch, in counterbalanced order. Cognitive performance and mood were assessed with a parametric Go/No-Go task (PGNG), a modification of California Verbal Learning Test, and Profile of Mood Scales (POMS). Subjects rated their expectations about Ginkgo's effects before patch application as well as their subjective assessment of its effects after the tests. An electrocardiogram and skin conductance levels (SCLs) were recorded and root mean square of successive differences (RMSSD), high-frequency power (HF), and the area under the curve of the SCL (AUC) were analyzed as psychophysiological stress markers. RESULTS: Expectations did not differ between adolescents and parents and were correlated concerning reaction times only. Overall, expectations did not influence placebo effects. There was only one significant placebo effect on the percentage of correct inhibited trials in one level of the PGNG in adolescents, but not in parents. RMSSD and HF significantly increased, and AUC decreased from pre- to post-patch application in adolescents, but not in parents. CONCLUSION: With this experimental paradigm, we could not induce relevant placebo effects in adolescents and parents. This could be due to aspects of the study design such as application form and substance, and that healthy subjects were employed. Nevertheless, we could show that adolescents are more sensitive to psychophysiological reactions related with interventions which could be part of the underlying mechanisms of placebo effects in adolescents.

Unmet Supportive Care Needs Among Women With Breast and Gynecological Cancer: Relevance of Attachment Anxiety and Psychological Distress.

OBJECTIVE: Attachment anxiety and avoidance are known risk factors for the development of unmet needs and poor well-being among patients with chronic diseases. Few studies have addressed this in individuals with cancer. We aimed to explore the relationship between supportive care needs, attachment styles and distress in women with breast and gynecological cancer. METHODS: Using a cross-sectional paper-pencil (n = 157) and online survey (n = 614), a total of 771 patients with breast or gynecological cancer completed a set of validated questionnaires. From September 2013 to January 2014, consecutive inpatients and outpatients of the university hospital Tuebingen were included in the study. Further, participants were recruited through social media, patient internet platforms, self-help group leaders and patient networks. We used the Supportive Care Needs Survey (SCNS-SF-34) with the need dimensions: health system, patient care, psychological, physical, and sexual needs, as well as the Experiences in Close Relationships-Revised Questionnaire, and the Distress Thermometer. A multiple linear regression model was used to analyze the influence of attachment styles (anxiety and avoidance) on the SCNS-SF-34 dimensions. A moderation analysis was used to explore the influence of the interaction between attachment anxiety and distress for all SCNS-SF-34 dimensions. RESULTS: Attachment anxiety was a significant determinant and led to higher unmet supportive care needs in all dimensions, whereas attachment avoidance was not significant. Distress did moderate the relationship between attachment anxiety and psychological and health system needs and led to a higher unmet needs development. For the other SCNS-SF-34 dimensions, distress was not confirmed as a moderator. CONCLUSION: Our findings highlight attachment anxiety as a risk factor for the development of unmet supportive care needs and potentially impaired psychological adjustment to cancer. Further studies are needed to elucidate the interactions between attachment styles, distress and supportive care needs among cancer patients.

Irritable bowel syndrome, mental health, and quality of life: Data from a population-based survey in Germany (SHIP-Trend-0).

BACKGROUND: Irritable bowel syndrome (IBS) is associated with reduced quality of life and high healthcare costs. This study aimed to assess the prevalence and risk factors for IBS in a general adult population. METHODS: The Study of Health in Pomerania (SHIP) is a population-based cohort study in northeastern Germany. SHIP-Trend-0 participants enrolled from 2008 to 2012 were grouped according to Rome III criteria (main criteria: abdominal discomfort or crampy or bloating pain for at least six months plus 2/3 additional criteria). Factors associated with IBS were assessed using survey-weighted backward stepwise logistic regression. KEY RESULTS: The final data set included 4194 records. IBS prevalence was 3.5% (3.0%-4.2%). Unemployment (OR: 2.02, 1.26-3.21), headaches (OR: 2.37, 1.59-3.52), mental quality of life (OR: 0.95 per unit increase, 0.93-0.97), and interactions between gender and physical quality of life (P = 0.004) and gender and alexithymia (P = 0.002) predicted IBS probability. The model resulted in a good discrimination (area under the curve = 75.4%) and model fit (F = 0.72, P = 0.69). History of depression (OR: 2.77, 1.94-3.95), back pain (OR: 2.38, 1.69-3.35), early trauma (OR: 1.03, 1.02-1.04), and duration of inpatient treatment within the last twelve months (OR: 1.02, 1.01-1.04) lost their significance in multivariable analysis. CONCLUSIONS & INFERENCES: IBS prevalence was relatively low compared to other studies. Factors predicting IBS were of biological, psychological, and social nature. The association between IBS and pain in different areas of the body indicates a potential underlying complex somatic symptom disorder.

High Demand for Psychotherapy in Patients with Inflammatory Bowel Disease.

BACKGROUND: The relative contribution of psychological factors to the onset and course of inflammatory bowel diseases (IBD) is a matter of constant debate since its beginning, as is the clinical need and the efficacy of psychotherapeutic interventions. However, the perspective of patients with IBD has largely been ignored in this debate. METHODS: Psychometric tests including the Short-Form IBD Questionnaire (SIBDQ), the ADAP test measuring demand for psychotherapy, and the Fear-of-Progression Questionnaire Short Form as well as disease-related questions were positioned on the internet between December 2014 and January 2016. The study was advertised through DCCV (German branch of the European Federation of Crohn's and Ulcerative Colitis Associations). RESULTS: n = 631 patients responded, and complete data from n = 578 (356 Crohn's disease, 219 ulcerative colitis, 3 unclear) were available for analysis. n = 296 had previous experiences with psychotherapy, whereas n = 282 had not. This distribution clearly determined the factor "demand for psychotherapy" (chi-square = 23.7, P < 0.001). When all available data were entered into a (stepwise-forward) regression model, psychotherapy demand was dependent on previous experience (P < 0.001), fear of progression (P < 0.001), quality of life (P = 0.001), smoking (P = 0.003), and previous surgery (P = 0.005) with the total model explaining 29.7% of the variance. The total explained variance of this model was higher in ulcerative colitis (37.6%) than in Crohn's disease alone (25.4%). CONCLUSIONS: The demand for psychotherapy as additional therapy in IBD depends on previous experience with psychotherapy, fear for disease progression but also other disease or social characteristics and quality of life.

Prevalence of constipation in the German population - a representative survey (GECCO).

BACKGROUND: Variable prevalence rates between 2.4 and 35% have been reported for chronic constipation across different countries worldwide, with a low 5% for Germany. OBJECTIVES AND METHODS: We conducted a computer-assisted telephone interview among 15,002 representative individuals in Germany, asking about health-related problems, including constipation. Those who acknowledged the presence of constipation symptoms during the preceding 12 months were questioned concerning constipation features and sociographic variables. RESULTS: Of 15,002 individuals interviewed, 2,239 (14.9%) acknowledged having experienced constipation during the last 12 months, 864 (5.8%) reported constipation during the last 4 weeks, and 380 (2.5%) had current constipation symptoms; 4.4% had taken medication because of their constipation, and 2.6% had consulted a doctor for constipation. In comparison to non-constipated volunteers, those constipated had a lower health quality of life and poorer health, and lower income and social status. CONCLUSION: Up to 15% of the general (German) population report symptoms of constipation depending on the definition. This matches pooled constipation rates across 18 countries (14%).

Somatic Comorbidity in Chronic Constipation: More Data from the GECCO Study.

Background. Comorbidity in chronic constipation has rarely been investigated, despite the fact that constipation can occur as one symptom in a number of neurological, systemic, and other nonintestinal and intestinal disorders. Methods. Of 1037 individuals with constipation identified during a telephone survey, 589 returned a postal questionnaire with valid data, asking for sociographic data, clinical symptoms, comorbid conditions, medication intake, and health care behavior related to constipation. Among them, 245 reported some somatic diagnoses and another 120 regular medication intake. They were compared to individuals without comorbid condition and presumed functional constipation (n = 215). Results. Individuals reporting a somatic comorbid condition and/or regular medication were significantly older than those with functional constipation (63.8 ± 15.8 and 43.7 ± 15.5 years, resp., p < 0.001) and had lower health and social status (both p < 0.001), but similar general life satisfaction (n.s.). Their quality-of-life was lower for the physical (p < 0.001) but not for the mental health domain (n.s.), while among those with functional constipation, the mental health domain distinguished IBS-C individuals from those with functional constipation but without pain (p < 0.001). Conclusion. In an unselected population sample with constipated individuals, those with a somatic comorbid condition outnumber those with functional constipation alone and are distinctly different with respect to age and health status.

Functional Constipation and Constipation-Predominant Irritable Bowel Syndrome in the General Population: Data from the GECCO Study.

Background. The prevalence of constipation in the (German) population has been shown to be 14.9% in a telephone survey, but more detailed data are required to characterize the sociographics and clinical characteristics of persons with different types of functional constipation, either constipation-predominant irritable bowel syndrome (IBS-C) or functional constipation with or without meeting Rome criteria. Methods. Of 2239 constipated individuals identified during the telephone interview, 1037 (46.3%) were willing to provide a postal address for a questionnaire, of which 589 (56.8%) returned the questionnaire, inquiring about sociographic data, clinical symptoms, and health care behavior related to constipation, as well as health-related quality-of-life (SF12). Subgroups of functionally constipated individuals were compared. Results. More than 50% of the respondents reported a somatic comorbid condition and/or regular medication intake that may contribute to constipation. We split the remaining individuals (N = 214) into three groups, matching Rome-criteria for IBS (IBS-C, n = 64) and for functional constipation (FC-R, n = 36) and FC not matching Rome criteria (n = 114). Nearly all sociographic and clinical characteristics were equal among them, and all individuals with constipation had similar and lowered QOL on the SF-12 physical health domain, but in IBS-C the scores were also significantly lower in comparison to FC-R and FC, in both the physical health and the mental health domain. Conclusion. Only a fraction of individuals with chronic constipation match Rome criteria for IBS-C or FC, but subgroups do not differ with respect to most other measures except quality-of-life profiles.

Irritable bowel syndrome.

Irritable bowel syndrome (IBS) is a functional gastrointestinal disease with a high population prevalence. The disorder can be debilitating in some patients, whereas others may have mild or moderate symptoms. The most important single risk factors are female sex, younger age and preceding gastrointestinal infections. Clinical symptoms of IBS include abdominal pain or discomfort, stool irregularities and bloating, as well as other somatic, visceral and psychiatric comorbidities. Currently, the diagnosis of IBS is based on symptoms and the exclusion of other organic diseases, and therapy includes drug treatment of the predominant symptoms, nutrition and psychotherapy. Although the underlying pathogenesis is far from understood, aetiological factors include increased epithelial hyperpermeability, dysbiosis, inflammation, visceral hypersensitivity, epigenetics and genetics, and altered brain-gut interactions. IBS considerably affects quality of life and imposes a profound burden on patients, physicians and the health-care system. The past decade has seen remarkable progress in our understanding of functional bowel disorders such as IBS that will be summarized in this Primer.

Bacterial infections in childhood: A risk factor for gastrointestinal and other diseases?

BACKGROUND: There is evidence for post-infectious irritable bowel syndrome (PI-IBS) in adults, but little is known about PI-IBS in children. The nationwide representative German Health Interview and Examination Survey for Children and Adolescents (KiGGS) assessed children's health. OBJECTIVE AND METHODS: We identified 643 children (50.1% males) in the KiGGS cohort (N = 15,878, 51% males) with a history of Salmonella infection. The number was validated comparing this group with the known infection statistics from the Robert Koch-Institute registry. We compared this group to the remaining KiGGS cohort (n = 12,951) with respect to sociodemographic characteristics, pain and quality of life. To check for specificity, we repeated the comparisons with a group with a history of scarlet fever. RESULTS: Infection statistics predicted 504 cases of Salmonella infection in the KiGGS cohort, indicating high validity of the data. In children between 3 and 10 years with a history of Salmonella infection, significantly more abdominal pain (31.7% versus 21.9%, p < 0.001) and headache (27.2% versus 15.1%, p < 0.001) were reported. This group showed lower quality of life (p < 0.001). Comparison to a group of scarlet fever-infected children revealed poor specificity of the data. CONCLUSION: Differences found between children with and without Salmonella infection reveal the role of gastrointestinal infection in the development of post-infectious abdominal problems, but poor specificity may point toward a psychosocial ("somatization") rather than a Salmonella-specific mechanism.

Frequent abdominal pain in childhood and youth: a systematic review of psychophysiological characteristics.

Background. Frequent abdominal pain (AP) in children and adolescents is often designated as functional gastrointestinal disorder. In contrast to research on psychological and social influences on the experience of AP in this population, psychophysiological features such as function of the autonomic nervous system, the central nervous system, or the endocrine system have rarely been studied. Methods. We conducted a systematic literature search for peer-reviewed journal articles referring to children with AP between 4 and 18 years. Studies on experimental baseline characteristics or reactivity of psychophysiological outcome parameters (autonomous nervous system, central nervous system, and endocrine parameters) were included. Key Results. Twelve of 18 included studies found psychophysiological differences between children with AP and healthy ones. These studies indicate a possible autonomic dysregulation and hypersensitivity of the central nervous system in children with AP following stimulation with stress or other intense stimuli. Mainly conflicting results were found regarding baseline comparisons of autonomic and endocrine parameters. Conclusions and Inferences. Frequent AP in children may be associated with an altered psychophysiological reaction on intense stimuli. It has to be considered that the current literature on psychophysiological characteristics of childhood AP is small and heterogeneous. In particular, multiparameter studies using validated experimental paradigms are lacking.

Rome III criteria in parents' hands: pain-related functional gastrointestinal disorders in community children and associations with somatic complaints and mental health.

OBJECTIVES: To determine (a) the prevalence of Rome III abdominal pain-related functional gastrointestinal disorders in a western community sample of children, (b) their associations with sociodemographic factors, and (c) whether children fulfilling Rome III abdominal pain diagnoses show higher rates of psychological distress and somatization. METHODS: Data were collected from parents of 6-10-year-old children who were recruited from 22 public grammar schools in Germany. A total of 1537 questionnaires were included in the analysis. Abdominal pain-related functional gastrointestinal disorders were diagnosed on the basis of questionnaire responses by Rome III criteria. Further, somatic complaints as well as emotional and behavioral problems were assessed. RESULTS: In total, 7.7% of children aged 6-10 years fulfilled the criteria for at least one Rome III abdominal pain-related functional gastrointestinal disorder according to their parents. The most prevalent diagnoses were irritable bowel syndrome (4.9%) and functional abdominal pain (2.0%). Assigned diagnoses were not associated with sociodemographic factors. We could confirm that abdominal pain-related functional disorders, especially irritable bowel syndrome, were strongly associated with somatization and emotional problems in community. CONCLUSION: Rome III abdominal pain-related functional gastrointestinal disorders are a common health problem in children and are, even in community, strongly associated with other somatic complaints and psychological distress.

Mental Strain and Chronic Stress among University Students with Symptoms of Irritable Bowel Syndrome.

Aim. To investigate the degree of mental strain and chronic stress in a German community sample of students with IBS-like symptoms. Methods and Materials. Following an internet-based survey about stress, this study recruited 176 German university students (23.45 ± 2.48 years; 48.3% males) with IBS-like symptoms according to Rome III and 181 students without IBS (23.55 ± 2.82 years; 50.3% males) and compared them regarding current mental strain (SCL-90-R) and the extend of chronic stress. Beyond this, IBS subtypes, IBS severity, and health care utilization were assessed. Results. Students fulfilling IBS criteria showed significantly elevated values of mental strain and chronic stress. Nearly 40% of the IBS group (versus 20% of the controls) reached a clinically relevant value on the SCL-90-R global severity scale. IBS subtypes did not differ in terms of mental distress or chronic stress. Somatization, anxiety, and the chronic stressors "work overload," "social tension," and "dissatisfaction with job" were most closely connected to IBS symptom severity. Regarding health care utilization, our results show that consulting a physician frequently was not associated significantly with elevated mental strain or chronic stress but with IBS symptom severity. Conclusion. Our data contribute additional evidence to the distinct association between psychological stress and IBS in community samples.