Objective: The coronavirus disease 2019 (COVID-19) -a novel and highly infectious pneumoniahas now spread across China and beyond for over four months. However, its psychological impact on patients is unclear. We aim to examine the prevalence and associated risk factors for psychological morbidities and fatigue in patients with confirmed COVID-19 infection.Methods: Amidst the disease outbreak, 41 out of 105 COVID-19 patients in a local designated hospital in China were successfully assessed using a constellation of psychometric questionnaires to determine their psychological morbidities and fatigue. Several potential biopsychosocial risk factors (including pre-existing disabilities, CT severity score of pneumonia, social support, coping strategies) were assessed through multivariable logistic regression analyses to clarify their association with mental health in patients.Results: 43.9% of 41 patients presented with impaired general mental health, 12.2% had posttraumatic stress disorder (PTSD) symptoms, 26.8% had anxiety and/or depression symptoms, and 53.6% had fatigue. We did not find any association between pneumonia severity and psychological morbidities or fatigue in COVID-19 patients. However, high perceived stigmatization was associated with an increased risk of impaired general mental health and high perceived social support was associated with decreased risk. Besides, negative coping inclination was associated with an increased risk of PTSD symptoms; high perceived social support was associated with a decreased risk of anxiety and/or depression symptoms. Conclusions:Psychological morbidities and chronic fatigue are common among COVID-19 patients.Negative coping inclination and being stigmatized are primary risk factors while perceived social support is the main protective factor. Number of words in the abstract: 247.Number of words in the main text: 3,109. Number of figures: 1; tables: 3.Supplementary file: 1.

Single-phase perovskite-type manganese oxides La0.8 −xNa0.2□xMnO3+δ with x = 0.01–0.04 have been prepared by the modified sol–gel method and the influence of the vacancy concentration in the A site on their structures and magnetocaloric properties has systematically been investigated. The experimental results revealed that the samples calcinated at 1573 K remained single phase and were constituted by submicrometre homogeneous particles without deviation from the nominal stoichiometry upon heating. For all the compositions explored in this work, the average manganese oxidation state is practically constant, at 3.37 ± 0.02. Magnetic measurement results show that an appropriate amount of vacancy concentration in the A site is favourable to both the Curie temperature and magnetic entropy change for polycrystalline La0.8−xNa0.2□xMnO3+δ compounds. An approximately linear relation between Curie temperature and magnetic entropy change was observed. For La0.771Na0.198Mn1.000□ 0.029O2.94, the largest value of magnetic entropy change of 3.86 J kg−1 K−1 under a field of 10 kOe and the Curie temperature of 364 K were obtained.