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Background Primary ciliary dyskinesia (PCD) might be a risk factor for the development of anxiety and depression. This study investigated the associations between anxiety, depression and health-related quality of life (HRQoL) in individuals with PCD and their caregivers. Methods Children, adolescents and adults with PCD and their caregivers were invited to participate in a mental health screening programme. During regular yearly outpatient visits, measures of anxiety (GAD-7), depression (PHQ-9), HRQoL (QOL-PCD), lung function (forced expiratory volume in 1 s (FEV1)) and body mass index (BMI)) were collected and associations of anxiety, depression and HRQoL were estimated. Results A total of 103 individuals participated in the mental health screening programme. Elevated levels of anxiety (scores ≥10 on GAD-7) were found in 6% of adults (n=33), 14% of children (n=7), 6% of adolescents (n=17) and 20% of caregivers (n=46, 52% of mothers). Elevated depression levels (scores ≥10 on PHQ-9) were found in 18% of adults, 14% of children, 6% of adolescents and 11% of caregivers. Anxiety and depression were associated with scales on the QOL-PCD. Mothers reported higher anxiety scores than fathers (30% versus 9%, p=0.03). A strong negative relationship was found between depression in caregivers and physical functioning (QOL-PCD) of the child. Anxiety and depression were not significantly associated with anxiety/depression in their child. Conclusion This is the first study investigating anxiety and depression in individuals with PCD and their caregivers. Our results revealed elevated levels of anxiety and depression, which were associated with worse HRQoL. These results suggest the need for psychological support in PCD., Individuals with PCD and their caregivers are at risk of developing symptoms of anxiety and depression, which are associated with worse HRQoL. There is an urgent need for psychological care in PCD, especially in adults with PCD and caregivers. https://bit.ly/3rmbgc9

Background Diagnosis of primary ciliary dyskinesia (PCD) is challenging since there is no gold standard test. The European Respiratory (ERS) and American Thoracic (ATS) Societies developed evidence-based diagnostic guidelines with considerable differences. Objective We aimed to compare the algorithms published by the ERS and the ATS with each other and with our own PCD-UNIBE algorithm in a clinical setting. Our algorithm is similar to the ERS algorithm with additional immunofluorescence staining. Agreement (Cohen's κ) and concordance between the three algorithms were assessed in patients with suspicion of PCD referred to our diagnostic centre. Results In 46 out of 54 patients (85%) the final diagnosis was concordant between all three algorithms (30 PCD negative, 16 PCD positive). In eight patients (15%) PCD diagnosis differed between the algorithms. Five patients (9%) were diagnosed as PCD only by the ATS, one (2%) only by the ERS and PCD-UNIBE, one (2%) only by the ATS and PCD-UNIBE, and one (2%) only by the PCD-UNIBE algorithm. Agreement was substantial between the ERS and the ATS (κ=0.72, 95% CI 0.53–0.92) and the ATS and the PCD-UNIBE (κ=0.73, 95% CI 0.53–0.92) and almost perfect between the ERS and the PCD-UNIBE algorithms (κ=0.92, 95% CI 0.80–1.00). Conclusion The different diagnostic algorithms lead to a contradictory diagnosis in a considerable proportion of patients. Thus, an updated, internationally harmonised and standardised PCD diagnostic algorithm is needed to improve diagnostics for these discordant cases., There is no gold standard test for diagnosing PCD. The use of existing diagnostic algorithms leads to contradicting results in many patients (15% in this study). Thus, an updated and internationally harmonised diagnostic guideline is needed. https://bit.ly/2U19Vvq