Abstract Background Patients with IBD suffer a high prevalence of psychological disorders. The impact of psychosocial factors on the risk of a disease flare is unknown. We aimed to assess associations between psychosocial factors and disease flare. Methods The PREdiCCt study is the largest prospective study of the causes of IBD flare. 2629 patients in clinical remission were recruited from 47 UK sites and followed up for 24 months. At study entry, patients completed questionnaires evaluating anxiety (HADS-A), depression (HADS-D), sleep quality (PSQI), physical activity (GPAQ) and somatization (PHQ15). We investigated associations between psychosocial factors and risk of clinical flare (patient-reported from IBD-Control 8 score) and hard flare (clinical flare and CRP >5 mg/L or faecal calprotectin (FC) >250 mcg/g and change in treatment). Survival analyses with Cox frailty models were performed, separately for Crohn’s disease (CD) and UC/IBDU, adjusting for baseline FC, sex, index of multiple deprivation, hospital site + age. Results We included 1641 patients [CD=830, UC/IBDU=811] who had a complete dataset for analysis (Table 1). Clinical flares were reported by 595 patients [CD=280, UC/IBDU=315], with an overall two-year flare rate of 36%. Hard flares were recorded for 219 patients [CD=99, UC/IBDU=120; two-year flare rate: 13%]. UC patients with higher depression scores had an increased risk of both clinical [elevated HADS-D scores of 8-10: aHR 1.72 (95%CI 1.21-2.43, p=0.002)] and hard flare [aHR 2.50 (p<0.001); Figure 1]. Anxiety was associated with an increased risk of clinical flare [elevated HADS-A scores of 11-21: UC/IBDU: aHR 1.46 (1.08-1.99, p=0.01); CD: aHR 1.86 (1.38-2.52, p<0.001)]. In addition, IBD patients with higher somatization scores were at increased risk for clinical flare [CD: aHR 3.86 (2.33-6.40, p<0.001); UC/IBDU: aHR 1.96 (1.25-3.07, p=0.003)], with a borderline effect for hard flare only in CD [aHR 2.34 (1.02-5.38, p=0.05)]. Significant associations were found between sleep deprivation and clinical flare risk in CD [aHR 1.58 (1.22-2.04, p<0.001)]. UC/IBDU patients who did not meet WHO-recommended exercise levels were at increased risk of hard flare [aHR 1.55 (1.03-2.32, p=0.03)]. Conclusion In this large prospective IBD cohort study we demonstrated a significant burden of several psychosocial factors. Anxiety, depression, somatization, and sleep disturbances were associated with an increased clinical flare risk. Depression and lack of exercise were associated with an increased hard flare risk in UC patients. These findings emphasize the need for a holistic IBD treatment approach. Table 1: baseline characteristics Figure 1: Clinical flare risk (left) and hard flare risk (right adjusted for site [fixed effect], sex, IMD, FC + age)
Read full abstract