Patients with irritable bowel syndrome (IBS) are more likely to be both absent from and impaired at work compared to non-IBS patients. We investigated the impact of IBS on work productivity and activity impairment and the relationship to disease specific and general health measures. In total, 525 patients with IBS completed questionnaires assessing work productivity and activity impairment, IBS symptom severity, IBS-related quality of life and GI-specific anxiety. In addition, 155 of the patients completed questionnaires assessing severity of somatic symptoms, depression, anxiety and fatigue. Uni- and bivariate analyses were performed, as well as linear regression to determine factors independently associated with the work productivity and activity impairment measures. Of employed patients, 24.3% reported absenteeism and 86.8% reported presenteeism because of their IBS. With increasing severity of IBS symptoms and GI-specific anxiety, higher degrees of work impairment were seen. Work productivity impairment in IBS was also associated with low quality of life. GI-specific anxiety was independently associated with absenteeism (R² = 0.23; p < 0.05), IBS-symptom severity and general fatigue with presenteeism (R² = 0.40; p < 0.05), IBS-symptom severity, general fatigue and GI-specific anxiety with overall work loss (R² = 0.50; p < 0.05), and IBS symptom severity and somatic symptoms with activity impairment (R² = 0.38; p < 0.05). Work impairment is a substantial problem in patients with IBS. A combination of IBS and somatic symptom severity, fatigue and psychological factors influence patients’ ability to be present, active and productive at work. Based on this, a multidimensional treatment approach for patients with IBS seems logical.

Background: Person‐centred care (PCC) has been suggested as a potential means to improve the care of patients with chronic and long‐term disorders. In this regard, a model for PCC was developed by the University of Gothenburg Centre for Person‐Centred Care (GPCC).Objective: The present study aimed to explore the theoretical frameworks, designs, contexts and intervention characteristics in the first 27 interventional studies conducted based on the ethics for person‐centredness provided by the GPCC.Design: Cross‐sectional study.Setting and participants: A questionnaire to the principal investigators of the 27 intervention studies financed by the GPCC and conducted between 2010 and 2016.Main outcome measures: Theoretical frameworks, contexts of studies, person‐centred ethic, and outcome measures.Results: Most of the interventions were based on the same ethical assumptions for person‐centredness but theories and models in applying the interventions differed. All studies were controlled; 12 randomized and 15 quasi‐experimental. Hospital in‐ and outpatient and primary care settings were represented and the outcome measures were related to the specific theories used. A complexity in designing, introducing and evaluating PCC interventions was evident.Conclusion: The frameworks, designs and interventions in the studies were in line with the established ethical basis of PCC, whereas outcome measures varied widely. Consensus discussions among researchers in the field are needed to make comparisons between studies feasible.Patient or public contributions: Patients or the public made no direct contributions, although most of the studied projects included such initiatives.

Purpose: Fatigue is a symptom in patients with chronic gastrointestinal (GI) and liver diseases. Different instruments have been developed to assess the severity of fatigue and the 40-item Fatigue Impact Scale (FIS) is among the most widely used. Shorter versions of FIS include the 21-item Modified Fatigue Impact Scale (MFIS), and an eight-item version for everyday use. The study aimed to assess construct validity, reliability, and sufficiency of the raw score of the original FIS with 40 items, and examine the sufficiency of the 21 items from the Modified scale and the eight items of the Daily Fatigue Impact Scale (D-FIS), all of which are embedded in the 40-item scale. Methods: Patients with chronic GI or liver disease (n = 354) completed the FIS with 40 items. The majority (57%) was under the age of 55 years and approximately half were females (48%). Various item sets of FIS were derived which showed fit to the Rasch model. Results: Local dependency and multidimensionality in FIS and the 21-item Modified scale were resolved with a testlet solution but the D-FIS showed local dependency and multidimensionality and differential item functioning (DIF) still remained. Two new item sets fulfilling unidimensionality and no DIF are suggested, one with 15 items and a six-item scale for daily use. The transformation table shows score-interval scale estimates for all these item sets. Conclusions: Both the FIS and the Modified scale can be used to measure fatigue albeit requiring some adjustment for DIF. The eight-item D-FIS is more problematic, and its summed score is not valid. Alternative 15- and 6-item versions presented in this paper can offer valid summed scores, and the transformation table allows transformation of raw scores and comparisons across all versions.

Background.: The association between cancer-related fatigue and pathological processes in the body is largely unknown. This study was designed to investigate a possible linkage between fatigue and intestinal injury during pelvic radiotherapy. Methods.: Twenty-nine women undergoing pelvic radiotherapy for anal or uterine cancer were prospectively followed. Fatigue and diarrhea were assessed using patient self-reported questionnaires. Plasma citrulline concentration, as a sign of intestinal injury, and C-reactive protein, orosomucoid, albumin, α1-antitrypsin, and haptoglobin, as signs of systemic inflammation, were analyzed. Results.: Fatigue increased significantly (p < .001) and citrulline decreased significantly (p < .001) during treatment. A significant negative correlation (r = −0.40; p < .05) was found between fatigue and epithelial atrophy in the intestine (as assessed by plasma citrulline) after 3 weeks of treatment and a significant positive correlation (r = 0.75; p < .001) was found between fatigue and diarrhea. Signs of systemic inflammation were evident, with significant increases in serum orosomucoid, serum haptoglobin (p < .05) and serum α1-antitrypsin (p < .001) and a significant decrease in serum albumin (p < .001). Conclusion.: The present study indicates a link between fatigue and intestinal injury during pelvic radiotherapy. This observation should be considered as a preliminary finding because of the small sample size but may serve as a rationale for therapeutic interventions aimed at alleviating both fatigue and gastrointestinal symptoms during pelvic radiotherapy.