Examining the optimal cutoff values of HADS, PHQ‐9 and GAD‐7 as screening instruments for depression and anxiety in irritable bowel syndrome

Custom cutoff values deem the HADS subscales (HADS-D and HADS-A) concordant to PHQ-9 and GAD-7 scores. The choice of a cutoff value has substantial impact on sensitivity/specificity and is dependent on patient population, setting, and the purpose of use.